Littérature scientifique sur le sujet « Cydia pomonella »
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Articles de revues sur le sujet "Cydia pomonella"
1
Zichová, T., V. Falta, F. Kocourek et J. Stará. « Differences in the susceptibility of codling moth populations to Cydia pomonella granulovirus in the Czech Republic ». Horticultural Science 38, No. 1 (3 février 2011) : 21–26. http://dx.doi.org/10.17221/26/2010-hortsci.
Texte intégralRésumé :
The Cydia pomonella granulovirus is a very important agent for the biological control of the codling moth, Cydia pomonella, in both organic and integrated apple and pear production. Three populations of Cydia pomonella originating from three separate areas of the Czech Republic were tested for their susceptibility to Cydia pomonella granulovirus in laboratory bioassays at several concentrations of Cydia pomonella granulovirus. A sensitive laboratory strain was chosen as a control. The larval mortality was checked 14 days after the infection. The mortality of Cydia pomonella larvae was similar in specimens originating from both the wild populations and the laboratory strain. Decreased susceptibility to Cydia pomonella granulovirus was demonstrated neither in samples from locality without Cydia pomonella granulovirus treatment nor from a locality experimentally treated with Cydia pomonella granulovirus for several years during the registration process. However, one population experimentally treated for more than 10 years was partially resistant to Cydia pomonella granulovirus. Based on our findings; the Cydia pomonella granulovirus biopesticides will be efficient due to the high susceptibility of field codling moth populations to Cydia pomonella granulovirus in the Czech Republic.
2
Bou Hamdan, Rami, Wajih Kassis et Mazen Bou Faour. « Resistance of Third and Fifth Instars of Codling Moth, Cydia pomonella (L.) to the Insecticide Deltamethrin in As-Suwayda Governorate, Syria ». Arab Journal for Plant Protection 41, no 2 (2023) : 183–89. http://dx.doi.org/10.22268/ajpp-41.2.183189.
Texte intégralRésumé :
Bou Hamdan, R., W. Kassis and M. Bufaur. 2023. Resistance of Third and Fifth Instars of Codling Moth, Cydia pomonella (L.) to the Insecticide Deltamethrin in As-Suwayda Governorate, Syria. Arab Journal of Plant Protection, 41(2): 183-189. https://doi.org/10.22268/AJPP-41.2.183189 Codling moth, Cydia pomonella (L.) is a key pest of global importance that affects apple fruit production and its populations have developed resistance to insecticides in many apple production areas. Third-instar larvae of Cydia pomonella has developed a vigor tolerance to deltamethrin in the fields of As-Suwayda Governorate, Syria. The resistance rate (RR) was (5, 5.6, 6.79) after (24, 48, 72) hours after treatment with deltamethrin, respectively, while ultra-vigor tolerance was observed in the non-diapausing fifth-instar larvae of codling moth (males and females), the resistance rate (RR) was (6.42, 7.75, 9.67) for males and (8.49, 9.84, 10.26) for females after (24, 48, 72) hours, 188 مجلة وقاية النبات العربية، مجلد ،41 عدد 2 ) 2023( respectively, It was noted that females of the non-diapausing fifth-instar larvae was more resistant than males. Based on the results, it is recommended to exclude deltamethrin for a while, using it with other insecticides, not re-using it many times or mixing it with one of the synergists. Keywords: Cydia pomonella (L.), non-diapausing larvae, insecticide resistance, resistance rate, deltamethrin
3
Hinsberger, Aurélie, Christine Blachère-Lopez, Caroline Knox, Sean Moore, Tamryn Marsberg et Miguel Lopez-Ferber. « CpGV-M Replication in Type I Resistant Insects : Helper Virus and Order of Ingestion Are Important ». Viruses 13, no 9 (26 août 2021) : 1695. http://dx.doi.org/10.3390/v13091695.
Texte intégralRésumé :
The genetic diversity of baculoviruses provides a sustainable agronomic solution when resistance to biopesticides seems to be on the rise. This genetic diversity promotes insect infection by several genotypes (i.e., multiple infections) that are more likely to kill the host. However, the mechanism and regulation of these virus interactions are still poorly understood. In this article, we focused on baculoviruses infecting the codling moth, Cydia pomonella: two Cydia pomonella granulovirus genotypes, CpGV-M and CpGV-R5, and Cryptophlebia peltastica nucleopolyhedrovirus (CrpeNPV). The influence of the order of ingestion of the virus genotypes, the existence of an ingestion delay between the genotypes and the specificity of each genotype involved in the success of multiple infection were studied in the case of Cydia pomonella resistance. To obtain a multiple infection in resistant insects, the order of ingestion is a key factor, but the delay for ingestion of the second virus is not. CrpeNPV cannot substitute CpGV-R5 to allow replication of CpGV-M.
4
Beşleagă, Ramona, E. Cârdei et M. Tălmaciu. « Results on the Efectiveness of Plant Protection Products Tested at the Fruit Growing Research and Development Station Iaşi, Romania ». Cercetari Agronomice in Moldova 45, no 1 (1 janvier 2012) : 59–64. http://dx.doi.org/10.2478/v10298-012-0005-x.
Texte intégralRésumé :
Results on the Efectiveness of Plant Protection Products Tested at the Fruit Growing Research and Development Station Iaşi, Romania During 2010-2011, at the Fruit Growing Research and Development Station (FGRDS) Iaşi, Romania, were carried aut research on testing the effectiveness of plant protection products. The experiment was conducted in experimental polygon, in an apple orchard, the variety Idared. Pests on witch observations were made were: Cydia pomonella L., Adoxophyes reticulana, Panonychus ulmi, Phyllonorycter spp., and the products tested were: Affirm SG 095 and Voliam Targo SC 063. The products Affirm SC 095 was tested against the apple skin moth (Adoxophyes reticulana) and apple codling moth (Cydia pomonella L.), and the product Voliam Targo SC 063 was tested against red mites (Panonychus ulmi) and the leaves miners (Phyllonorycter spp.) apple codling moth (Cydia pomonella L.). As standard products Coragen and Vertimec 1.8 EC were used at the rates of 0.15 l/ha and 0.75/ha respectively.
5
Hrudová, Eva. « Nontarget lepidoptera species found in the pheromone traps for selected Tortricid species in 2002 and 2003 years ». Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 53, no 1 (2005) : 35–44. http://dx.doi.org/10.11118/actaun200553010035.
Texte intégralRésumé :
Pheromone traps were used to monitor the following tortricid moths, i.e. Adoxophyes orana, Archips podanus, A. rosanus, Hedya nubiferana, Pandemis heparana, Spilonota ocellana, Cydia pomonella, Cydia funebrana and Cydia molesta in the localities Brno-Tuřany (Brno-město), Nebovidy (Brno-venkov) and Prakšice (Uherské Hradiště). Other Lepidoptera non-target species were present in these target-species pheromone traps, i.e. Adoxophyes orana, Agrotis segetum, Amphipoea oculaea, Archips rosanus, Celypha striana, Cydia coronillana, Enarmonia formosana, Epiblema scutulanum, Epinotia huebneriana, Eucosma fervidana, Euxoa tritici, Hedya pruniana, H. nubiferana, Lymantria dispar, Noctua pronuba, Notocelia rosaecolana, N. roborana, Pammene albuginana, P. suspectana, Pandemis cerasana, Pyrausta rectefascialis, P. aurata, Spilonota ocellana, Yponomeuta malinellus and Zygaena purpuralis.
6
Kot, Izabela. « Monitoring of Codling Moth (Cydia Pomonella L.) in Apple Orchards Using Two Methods ». Journal of Plant Protection Research 50, no 2 (1 juin 2010) : 220–23. http://dx.doi.org/10.2478/v10045-010-0038-9.
Texte intégralRésumé :
Monitoring of Codling Moth (Cydia Pomonella L.) in Apple Orchards Using Two MethodsThe present studies were conducted in 1999-2001 in three apple orchards differing from each other by the system of cultivation, the type of agricultural treatments and chemical control of pests. Their purpose was to monitor codling moth (Cydia pomonellaL.) in different types of apple orchards using pheromone traps, finding out the relation between the occurrence of moths and the sum of effective temperatures as well as determining the number of wintering caterpillars of this species with the use of bands of corrugated paper. The analysis of male flight of codling moth on the basis of pheromone traps makes it possible to state the occurrence of two generations in each studied year. The maximum population of the first generation was observed in the second or third ten days of June, while that of the second generation in the first ten days of August. The moths flight began when the sum of effective temperatures was 109.2-145.2°C, and the mean diurnal temperature was 12.3-17.2°C.
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Stará, J., et F. Kocourek. « Evaluation of efficacy of Cydia pomonella granulovirus (CpGV) to control the codling moth (Cydia pomonella L., Lep. : Tortricidae) in field trials ». Plant Protection Science 39, No. 4 (25 novembre 2011) : 117–25. http://dx.doi.org/10.17221/3830-pps.
Texte intégralRésumé :
The efficacy of a CpGV-based preparation of Czech production against codling moth (CM) was tested in an experimental apple orchard at Prague-Ruzyně in 1998–2000. The influence of CpGV treatment on the reduction of CM population density and fruit injury was evaluated in comparison with teflubenzuron. Decline of CpGV efficacy in the orchard was tested in laboratory conditions on apples sampled at different terms after CpGV treatment. The rates of CpGV applied ranged from 0.5 to 1.00 × 10<sup>13 </sup>granulles/ha, and the number of applications from 3 to 5 per year. The biological efficacy of CpGV to reduce the CM population density ranged from 75.5% to 96.0%, that of teflubenzuron from 90.8% to 97.5%, compared to the untreated control. The CpGV treatment was more efficacious in reducing the CM population density than in reducing fruit injury. The efficacy of CpGV decreased to 50% after 20, 10 and 11 d after treatment in 1998, 1999 and 2000, respectively. According to our results, a 10 d interval for CpGV treatments is recommended in case of further mass egg-laying by CM in the period between CpGV applications.
8
Schumacher, Peter, Donald C. Weber, Christian Hagger et Silvia Dorn. « Heritability of flight distance for Cydia pomonella ». Entomologia Experimentalis et Applicata 85, no 2 (novembre 1997) : 169–75. http://dx.doi.org/10.1046/j.1570-7458.1997.00247.x.
Texte intégral
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Hrudová, E. « The presence of non-target lepidopteran species in pheromone traps for fruit tortricid moths ». Plant Protection Science 39, No. 4 (25 novembre 2011) : 126–31. http://dx.doi.org/10.17221/3831-pps.
Texte intégralRésumé :
In the localities Brno-Tuřany (Brno-město) and Prakšice (Uherské Hradiště) pheromone traps were used to monitor tortricid moths Adoxophyes orana, Archips podanus, A. rosanus, Hedya nubiferana, Pandemis heparana, Spilonota ocellana, Cydia pomonella, Cydia funebrana and Cydia molesta. Other moths species were also present in these pheromone traps for target species: Pammene albuginana, Cydia coronilana, Notocelia rosaecolana, Hedya pruniana, noctua pronuba, Ypponomeuta malinellus, Pyrausta rectefascialis and P. aurata.
10
Gund, Nadine A., Annette Wagner, Alicia E. Timm, Stefanie Schulze-Bopp, Johannes A. Jehle, Jes Johannesen et Annette Reineke. « Genetic analysis of Cydia pomonella (Lepidoptera : Tortricidae) populations with different levels of sensitivity towards the Cydia pomonella granulovirus (CpGV) ». Genetica 140, no 4-6 (juin 2012) : 235–47. http://dx.doi.org/10.1007/s10709-012-9675-4.
Texte intégralThèses sur le sujet "Cydia pomonella"
1
Woods, Alexander K. « Genetic control of the codling moth (Cydia pomonella) ». Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670000.
Texte intégral
2
Casado, González Daniel. « Cydia pomonella (L.) behavior and responses to host volatiles ». Doctoral thesis, Universitat de Lleida, 2007. http://hdl.handle.net/10803/8365.
Texte intégralRésumé :
Es van mostrejar volàtils de pomera i noguer emesos per branques intactes en camp, rodejadesper bosses de plàstic, al matí i al crepuscle en diferents moments de la campanya. Aquestes mostres es
van analitzar per cromatografia de gasos-espectrometria de masses (GC-MS) i cromatografia de gasoselectroantenodetecció
(GC-EAD) fent servir antenes de mascles de Cydia pomonella. Es van detectar 44
compostos en pomera i 90 en noguer per mitjà de la GC-MS. Les emissions d'ambdues espècies van
variar clarament, tant quantitativament com qualitativa. Els compostos alifàtics eren majoritaris en les
emissions de pomera, mentre les terpens ho eren a les de noguer. Es va trobar activitat EAD per 5
compostos a les mostres de pomera i 10 a les de noguer. Posteriors proves d'electroantenografia (EAG)
amb mascles i femelles van revelar una forta activitat EAG per nombrosos volàtils emesos per pomera.
En aquests assajos la resposta dels mascles va ser sempre igual o superior a la de les femelles, excepte pel
β-mircè. Entre els compostos actius en les anàlisis de GC-EAD, el butanoat d'hexil era específic de
pomera, 3 compostos eren específics de noguer (al·loocimè, pinocarvona, i òxid de cariofil·lè) i la resta
eren comuns entre ambdues espècies de planta. La 2-ciclopentilciclopentanona, un compost emès per les
bosses de plàstic, també va provocar intenses respostes EAG en antenes d'ambdós sexes.
El (E,Z)-2,4-decadienoat d'etil (èster de pera), i el (E)-β-farnesè van ser completament atraients
en camp, però no van estimular contactes amb la font en túnel de vent, suggerint que d'altres estímuls
sensitius estan relacionats amb el seu funcionament en camp. La preexposició a la feromona sexual,
(E,E)-8,10-dodecadien-1-ol, va disminuir la resposta dels mascles a aquesta en túnel de vent, però va
incrementar la resposta a l'èster de pera; i no va tenir cap efecte sobre les femelles. De forma semblant,
les captures en camp amb èster de pera van ser superiors sota confusió sexual. L'èster de pera va actuar
com antagonista de la feromona sexual en barrejar-se a altes quantitats. No obstant, l'antagonisme va
desaparèixer en presentar ambdós compostos en septes separats; i els mascles van ser incapaços de
discriminar entre la feromona sexual sola i la barreja antagonista quan ambdues es van oferir una al costat
de l'altra.
Assajos d'oviposició i aparellament van demostrar que la temperatura modula el moment del día
en que aquests comportaments tenen lloc. En camp, l'oviposició es va avançar a temperatures baixes; i va
ser màxima al 3r i 4t dies de vida. En laboratori, l'oviposició també es va avançar a temperatures més
baixes, però per la majoria de temperatures assajades, el pic d'oviposició va tenir lloc durant la primera
hora de l'escotofase. A 12ºC no hi va haver oviposició, i la fecunditat va ser màxima a 22 i 27ºC. Per un
dia determinat. L'activitat diària d'aparellament tenia lloc abans que la d'oviposició.
Paraules clau: Cydia pomonella, volàtils de planta hoste, comportament, EAG, GC-EAD, GC-MS,
Lepidoptera, Tortricidae, preexposició a la feromona, èster de pera, (E)-β-farnesè, vol orientat, feromona
sexual, noguer, pomera, variació diària, temperatura, activitat diària, intensitat lumínica.
Se recogieron colecciones de volátiles de manzano y de nogal emitidos por ramas intactas en
campo, con hojas y frutos, rodeadas por bolsas de plástico, por la mañana y en el crepúsculo en diferentes
momentos de la campaña. Estas muestras se analizaron mediante cromatografía de gases-espectrometría
de masas (GC-MS) y cromatografía de gases-electroantenodetección (GC-EAD) usando antenas de
machos de Cydia pomonella. Se detectaron 44 compuestos en manzano y 90 en nogal por GC-MS. Las
emisiones de ambas especies variaron ampliamente, tanto cuantitativa como cualitativamente. Los
compuestos alifáticos fueron mayoritarios en las emisiones de manzano, mientras que los terpenos lo
fueron en las de nogal. Se observaron variaciones entre periodos tanto para la campaña como para el día.
Se encontró actividad EAD para 5 compuestos en las muestras de manzano y 10 en las de nogal.
Posteriores pruebas de electroantenografía (EAG) con machos y hembras revelaron una fuerte actividad
EAG para múltiples volátiles emitidos por manzano. En estos ensayos la respuesta de los machos fue
siempre igual o superior a la de las hembras, con la excepción del β-mirceno. Entre los compuestos
activos en los análisis de GC-EAD, el butanoato de hexilo fue específico de manzano, 3 compuestos
fueron específicos de nogal (aloocimeno, pinocarvona, y óxido de cariofileno) y los restantes eran
compartidos por ambas especies de planta. 2-Ciclopentilciclopentanona, un compuesto emitido por las
bolsas de plástico, también provocó intensas respuestas EAG en antenas de ambos sexos.
(E,Z)-2,4-Decadienoato de etilo (éster de pera), y (E)-β-farneseno fueron completamente
atrayentes en campo, pero no provocaron contactos con la fuente en túnel de viento, sugiriendo que otros
estímulos sensoriales están relacionados con su funcionamiento en campo. La preexposición a la
feromona sexual, (E,E)-8,10-dodecadien-1-ol, disminuyó la respuesta a ella de machos en túnel de viento,
pero incrementó la respuesta al éster de pera; y no tuvo efecto alguno sobre las hembras. De forma
similar, las capturas en campo con éster de pera fueron superiores en confusión sexual. El éster de pera
actuó como antagonista de la feromona sexual al mezclarlo con ésta en cantidades elevadas. No obstante,
el antagonismo desapareció cuando ambos compuestos se presentaban en septos separados; y los machos
no discriminaron entre la feromona sexual sola y la mezcla antagonista cuando ambas se ofrecieron una al
lado de la otra.
Los ensayos de oviposición y apareamiento demostraron que la temperatura modula el momento
del día en que estos comportamientos tienen lugar. En campo, la oviposición se avanzó a temperaturas
más bajas; y fue máxima en el 3º y 4º días de vida. En laboratorio, la oviposición también se avanzó con
temperaturas más bajas, pero para la mayoría de temperaturas ensayadas, el pico de oviposición tuvo
lugar durante la primera hora de la escotofase. A 12ºC no hubo oviposición, y la fecundidad fue máxima a
22 y 27ºC. Para un día determinado. La actividad diaria de apareamiento tenía lugar antes que la de
oviposición.
Palabras clave: Cydia pomonella, volátiles de planta huésped, comportamiento, EAG, GC-EAD, GCMS,
Lepidoptera, Tortricidae, preexposición a la feromona, éster de pera, (E)-β-farneseno, vuelo
orientado, feromona sexual, nogal, manzano, variación diaria, temperatura, actividad diaria, intensidad
lumínica.
Volatile compounds from apple and walnut trees were collected in the field from attached
branches, bearing leaves and fruits, enclosed in plastic bags in the morning and at dusk, in different
periods of the season. Collections were analyzed by gas chromatography-mass spectrometry (GC-MS),
and gas chromatography-electroantennodetection (GC-EAD) using antennae of male Cydia pomonella.
Forty four compounds in apple and 90 in walnut were detected by GC-MS. Emissions of both plant
species widely differed both qualitatively and quantitatively. Apple emissions were dominated by
aliphatic compounds, whereas walnut ones by terpenes. Diel and seasonal variations were found in
emissions of both plant species. GC-EAD revealed activity for 5 compounds in apple collections and 10
in walnut ones. Further electroantennographic (EAG) analyses with males and females revealed important
EAG-activity for many other volatiles emitted by apple. In these analyses male responses were equal to or
higher than those of female for all compounds, except for β-myrcene. Amongst the EAD-active
compounds in the GC-EAD analyses, hexyl butanoate was apple-specific, 3 compounds were walnutspecific
(alloocimene, pinocarrvone, and caryophyllene oxide), and the remaining were shared by both
plant species. 2-Cyclopentylcyclopentanone, a compound emitted by the plastic bags, also elicited strong
EAG responses in antennae of both sexes.
Ethyl (E,Z)-2,4-decadienoate (pear ester), and (E)-β-farnesene were fully attractive for C.
pomonella in field trapping. However, they did not elicit source contacts in wind tunnel, suggesting that
other sensory cues are involved in their field attractiveness. Pre-exposure to the sex pheromone, (E,E)-
8,10-dodecadien-1-ol (codlemone), decreased male upwind flight to itself in wind tunnel, but increased
pear ester attractiveness; and had no effect on females. Similarly, trap captures with pear ester were found
to increase under mating disruption. Pear ester acted as a codlemone antagonist when blended at large
amounts. However, this effect disappeared when both compounds were loaded onto different septa; and
males were unable to discriminate amongst codlemone and the antagonistic blend when offered side-byside.
Oviposition and mating assays showed that C. pomonella diel oviposition and mating timings are
modulated by temperature. In the field, oviposition activity was advanced by lower temperatures; and was
maximum in the 3rd and 4th days of life. In the laboratory, oviposition was also advanced by lower
temperatures, but for most of the assayed temperatures it peaked in the first hour of the scotophase.
Oviposition did not take place at 12ºC, and fecundity was maximum at 22 and 27ºC. Mating activity
occurred before than oviposition activity in a given day.
Keywords: Cydia pomonella, host-plant volatiles, behavior, EAG, GC-EAD, GC-MS, Lepidoptera,
Tortricidae, pheromone pre-exposure, pear ester, (E)-β-farnesene, upwind flight, sex pheromone, walnut,
apple, diel variation, temperature, diel activity, light intensity.
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Bäckman, Anna-Carin. « Olfactory communication in the codling moth, Cydia pomonella L. / ». Alnarp : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5491-3.pdf.
Texte intégral
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Ishimwe, Egide. « Functional characterization of the Cydia pomonella granulovirus matrix metalloprotease ». Thesis, Kansas State University, 2014. http://hdl.handle.net/2097/18229.
Texte intégralRésumé :
Master of ScienceDepartment of Biology
A. Lorena Passarelli
Cydia pomonella granulovirus (CpGV) is a member of the Baculoviridae family of viruses. The CpGV open reading frame 46 (CpGV-ORF46) predicts a 545 amino acid protein that shares homology with matrix metalloproteases (MMPs), a family of zinc-dependent endopeptidases that degrade extracellular matrix proteins. In silico analyses revealed the presence of putative mmp genes in all species from the Betabaculovirus genus, while no mmps were identified in members of the Alphabaculovirus, Gammabaculovirus or Deltabaculovirus genera. Unlike most cellular MMPs, baculovirus MMPs do not have a propeptide domain, a domain involved in regulating MMP activation, or a hemopexin-like domain, which is necessary for substrate binding and specificity in many MMPs. However, Betabaculovirus MMPs do contain a predicted conserved zinc-binding motif (HEXGHXXGXXHS/T) within their catalytic domain. The function of CpGV-MMP and its effects on baculovirus replication in cultured cells and insect larvae were investigated. CpGV-MMP was expressed in and purified from Escherichia coli, and activity was measured using a generic MMP substrate in vitro. CpGV-MMP had in vitro activity and its activity was specifically inhibited by MMP inhibitors. To study the effects of CpGV-MMP on virus replication and dissemination, CpGV-MMP was expressed from Autographa californica nucleopolyhedrovirus (AcMNPV) under the control of a strong and constitutive promoter, the Drosophila heat shock 70 protein promoter. Expression of CpGV-MMP did not affect virus replication in cultured cells. The effects of expressing CpGV-MMP from AcMNPV during larval infection were evaluated in the presence or absence of the AcMNPV chitinase and cathepsin genes. Insect bioassays showed that the absence of cathepsin resulted in a significant delay in larval time of death; however, this delay was compensated by expression of CpGV-MMP. In addition, larval time of death was accelerated when cathepsin, chitinase, and CpGV-MMP were all expressed. Finally, we determined the effects of CpGV-MMP on larvae melanization and liquefaction. CpGV-MMP was able to promote larvae melanization in the absence of cathepsin. CpGV-MMP, in the absence of cathepsin, was not able to promote larvae liquefaction. When chitinase was engineered to be secreted from cells, CpGV-MMP rescued liquefaction in the absence of cathepsin. In conclusion, CpGV-MMP is a functional MMP which can enhance larvae mortality with the presence of cathepsin. In addition, CpGV-MMP can promote larvae melanization; however, it can only promote liquefaction when chitinase is engineered to be secreted from cells.
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Chidawanyika, Frank. « Thermal tolerance of Cydia pomonella (Lepidoptera : Tortricidae) under ecologically relevant conditions ». Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5375.
Texte intégralRésumé :
Thesis (MSc (Agric) (Conservation Ecology and Entomology))--University of Stellenbosch, 2010.ENGLISH ABSTRACT: Ambient temperature plays a key role in insect-physiology, -population dynamics and ultimately -geographic distribution. Here, I investigate the survival of codling moth, Cydia pomonella (Linnaues) (Lepidoptera: Tortricidae), which is a pest of economic importance in pome fruit production, to a wide range of temperature treatments. In this thesis, I first explore how temperature affects the survival and limits to activity of codling moth and secondly investigate if thermal acclimation can improve field performance of moths used in sterile insect technique control programmes under ecologically relevant conditions. First, I found that absolute temperature as well as the duration of temperature exposure significantly affects adult C. pomonella survival. Lethal temperatures, explored between -20 °C to -5 °C and 32 °C to 47 °C over a range of durations, showed that 50% of the adult C. pomonella population killed at -12 °C and at 44 °C after 2 hrs for each treatment. At high temperatures a pretreatment at 37 °C for 1 hr dramatically improved survival at 43 °C for 2 hrs from 20% to 90% (p<0.0001). Furthermore, high temperature pre-treatments (37 °C for 1 hr) significantly improved low temperature survival at -9 °C for 2 hrs. In sum, my results suggest pronounced plasticity of acute high temperature tolerance in adult C. pomonella, but limited acute low temperature responses. Secondly, low-temperature acclimated laboratory-reared moths were recaptured in significantly higher numbers (d.f. = 2, χ2 = 53.13 p<0.001), by sex pheromone traps, under cooler conditions in the wild relative to warm-acclimated or non-acclimated moths. However, these improvements in low temperature performance in cold-acclimated moths came at a cost to performance under warmer conditions in the wild. This novel study demonstrates the importance of thermal history on C. pomonella survival and clear costs and benefits of thermal acclimation on field and laboratory performance, and thus, the potential utility of thermal pre-treatments for improved efficacy in the sterile insect technique programme for C. pomonella control under cooler, springtime conditions. Finally, on a global scale, this study highlights that low and high temperatures could play a role in CM adult survival through direct mortality and thus, may influence, or have influenced in the pest, population dynamics.
AFRIKAANSE OPSOMMING: Temperatuur speel ‘n belangrike rol in die fisiologie, populasiedinamika en geografiese verspreiding van insekte. In hierdie tesis ondersoek ek die rol van ‘n wye reeks temperature op die oorlewing van kodlingmot Cydia pomonella (Linnaues) (Lepidoptera: Tortricidae), ‘n sagtevrug pes-spesie van ekonomiese belang. Ek ondersoek hoofsaaklik die effek van temperatuur op die fisiologie en fiksheid van kodlingmot, asook die mate waartoe termiese akklimasie (‘n mate van aanpassing) die veldgedrag van die steriele insek beheer-metode (SIT), d.m.v. kodlingot, in relevante omgewingstemperature kan verbeter. Ek het (i) gevind dat die temperatuur en duur van die temperatuur toediening ‘n betekenisvolle toename in volwasse C. pomonella oorlewing tot gevolg het. In die deel van die studie is temperature tussen -20 °C en -5 °C and tussen 32 °C en 47 °C ondersoek oor ‘n reeks van 0.5, 1, 2, 3 en 4 ure van duur. In kort lei -12 °C en 44 °C vir 2 uur onderskeidelik tot die uitsterf van 50% van die volwasse C. pomonella populasie. Indien die motte vooraf gehou is by 37 °C vir ongeveer 1 uur, is oorlewing by 43 °C vir 2 ure betekenisvol verbeter van 20% tot 90% (p<0.0001). Hoër temperatuur vooraf-blootstellings (akklimasie), by 37 °C vir 1 uur, het daartoe gelei dat lae temperatuur lae-temperatuur-oorlewings by -9 °C vir 2 ure betekenisvol verbeter het. Oor die algemeen het die resultate gedui dat hoër akute temperatuurstoleransie in C. pomonella bestaan, maar beperkte akute lae-temperatuur reaksies bestaan. Verder het lae-temperatuur akklimasie (laboratorium geteelde) motte ‘n betekenisvolle hoër getal hervangste deur geslagsferomone in koeler omgewings opgelewer (v.i. = 2, χ2 = 53.13, p<0.001) in vergelyking met warmer-temperatuur geakklimatiseerder motte. Hierdie verbeteringe in laetemperatuur reaksies vanaf lea-temperatuur akklimasie groepe is teen ‘n koste teen warmer reaksie-toestande in die natuur geïs. Hierdie eersdaagse studie demonstreer die belang van historiese temperatuur op die oorlewing van C. pomonella. Die kostes- en voordele van termiese akklimasie op veld- en laboratoriumpopulasie reaksies en die potensiële gebruik daarvan in die verbetering van steriele insek tegniek programme, onder koeler omstandighede, is uitgelig. Laastens, beklemtoon hierdie studie die belangrikheid van temperatuur as bepalende faktor van kodlingmot-oorlewing en die invloed daarvan op die vrugte-pes populasiedinamika.
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Ballard, John. « Development of 'Cydia pomonella' granulosis virus for biological control in orchards ». Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/47346.
Texte intégral
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Nollet, Maxime. « Étude de l’encapsulation de Cydia Pomonella Granulovirus (CpGV) dans des émulsions doubles ». Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR15263/document.
Texte intégralRésumé :
Le Cydia pommonella granulovirus (CPGV) est un insecticide naturel des ravageurs des pommes sensible à l’environnement extérieur (UV et dioxygène). Pour le protéger, nous avons encapsulé le CpGV dans des émulsions doubles de type eau dans huile dans eau (E/H/E). Cependant, l’utilisation des émulsions doubles requiert la maitrise de leur stabilité thermodynamique et la compréhension des mécanismes mis en jeu au cours de leur déstabilisation. C’est dans ce contexte que différents paramètres de formulation : procédé d’émulsification, type de stabilisant hydrophile, concentration en stabilisant lipophyle et en gouttelette d’eau, utilisation d’un agent anti-UV ont été testés pour étudier leur influence sur la libération du virus. Chaque formulation a fait l’objet de test d’efficacité sur les vergers et detransposition à l’échelle pilote afin de déterminer la formulation la plus efficace et pouvant être produit industriellementCydia pommonella granulovirus (CpGV) is a natural insecticide pest of apples wich is sensitive to the external environment (UV and oxygen). To protect it, we have encapsulatedthe CpGV in double emulsions of water-in-oil-in-water (W / O / W). However, it’s necessary to understand the mechanisms involved in their destabilizationin order to master their thermodynamic stability. In that context, several various formulation parameters: emulsification processes, hydrophilic stabilizer type, lipophilic stabilizer concentration and water droplet, using a UV stabilizer were tested to study their influence on virus release. Each stable formulation undergoes efficiency tests in fields and pilot scale to determine the most effective formulation which could be industrially produced
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Pons, i. Miquel Sebastià. « Actividad biológica del análogo de la ecdisona tebufenocida en Cydia Pomonella (Lepidoptera : Tortricidae) ». Doctoral thesis, Universitat de Lleida, 1998. http://hdl.handle.net/10803/8348.
Texte intégralRésumé :
Cydia pomonella (L.) es una plaga clave en el cultivo de frutales en gran parte del mundo, principalmente en manzanos. El manejo de esta plaga ha sido una constante en aquellas zonas donde ha representado un problema, ya sea por la severidad de los daños causados o por la necesidad de adoptar estrategias de lucha más racionales que el uso de insecticidas de amplio espectro. Con la implementación de programas de control integrado se han descartado un gran número de insecticidas por diversos motivos, comopor ejemplo su toxicidad, ya sea a mamíferos o a otros organismos que no son la plaga en sí. Esto ha permitido la entrada en el mercado de otros insecticidas o técnicas de control que se caracterizan por perfiles eco-toxicológicos más favorables pero también se caracterizan por ser productos que requieren de un conocimiento técnico más exhaustivo para poder ser utilizados con éxito. Generalmente es necesario conocer
sobre qué estados actúa el insecticida y si posee cierta acción y/o produce efectos subletales sobre los otros estados del insecto que puedan contribuir de forma significativa en el control de la plaga. Uno de los insecticidas de reciente
implementación en el control de carpocapsa ha sido tebufenocida, análogo de la hormona ecdisona, descubierto por Rohm and Haas Company (Philadelphia, PA) y presentado como larvicida específico contra lepidópteros.
La finalidad de esta tesis ha sido investigar en algunos parámetros de la actividad biológica de tebufenocida, análogo de la hormona ecdisona, sobre C. pomonella. Para dicho estudio se profundizó en el conocimiento de los efectos letales de tebufenocida en los diferentes estadios de C. pomonella; se estudió una metodología para la evaluación de la susceptibilidad de una determinada población de carpocapsa a tebufenocida; se compará la actividad larvicida de tebufenocida con otros reguladores del crecimiento de insectos; se estudiaron los efectos subletales de tebufenocida en los diferentes estadios de C. pomonella; se determinó el momento de aplicación en campo y el efecto de la utilización de coadyuvantes y volumen de tratamiento en la efectividad de tebufenocida en el control de C. pomonella.
En estudios sobre la actividad ovicida de tebufenocida en carpocapsa, se ha obtenido
que la actividad residual de tebufenocida en huevos varÃa considerablemente dependiendo del substrato en que los huevos han sido puestos. En aplicaciones en laboratorio, la CLso fue de 4,35 ppm en hojas de manzano tratadas con distintas
concentraciones de tebufenocida. No hubo diferencias entre el control y los tratamientos (excepto algunas dosis muy altas) en la mortalidad de los huevos cuando el substrato utilizado fueron manzanas o papel encerado. Tebufenocida fue unas 30 veces más activo cuando los huevos fueron puestos sobre el residuo en hojas, que cuando fueron tratados típicamente. Los huevos puestos sobre manzanas y tratados
típicamente no fueron afectados, y sí lo fueron afectados ligeramente los huevos colocados sobre papel encerado, aunque dependiendo de la edad en que eran tratados.
La mortalidad conseguida en estos tratamientos osciló entre el 40 y el 60%, sin que se
vieran afectados los huevos que se encontraban cerca de la eclosión. Por lo tanto, se
demuestra la acticidad ovicida de tebufenocida, aunque ésta se ve condicionada por factores como pueden ser el substrato de puesta y si las aplicaciones son típicas o residuales. Aunque no se han investigado las causas que producen estas diferencias en toxicidad entre tipo de aplicación y sobretodo entre substratos, se ha especulado en que son las propias características fisiológicas de la hoja las que facilitan la penetración del
insecticida a través del corion al interior del huevo, y así conseguir afectar al embrión.
Tebufenocida fue muy activo cuando las larvas neonatas de carpocapsa fueron alimentadas con manzanas tratadas con este insecticida, donde se obtuvo una LCso de 16,08 ppm. Se obtuvo un ligero daño en la superficie de las manzanas como
consecuencia de la alimentación de las larvas, incluso en las concentraciones más altas
evaluadas. Esto indica que el tiempo transcurrido entre la ingestión del insecticida y la
parada de la alimentación de las larvas, como efecto de tebufenocida, es lo suficiente
como para que se produzcan ligeros daños. Cuando se utilizó dieta artificial se obtuvo
una LC50 de 0,22 ppm para larvas neonatas, 0,40; 0,29 y 1,47 ppm para segundo, tercer
y cuarto estadio larvario respectivamente, siendo iguales las rectas Probit en el segundo
y tercer estadio larvario. KKS15MKN tiMNKKAI.
En cuanto a la actividad por contacto sobre larvas neonatas de carpocapsa. cuando las
larvas fueron expuestas durante una hora sobre hojas de manzano tratadas, la CL50 fue
de 499.9 ppm, mucho menor que el valor obtenido cuando actuó por ingestión.
También se observaron diferencias en la toxicidad de tcbufcnocida por contacto sobre
neonatas dependiendo del substrato. Las CL50 fueron similares cuando se expusieron las
larvas sobre hojas tratadas durante 1 hora (499.9 ppm). que sobre plástico durante 4 horas (348.7 ppm). Estas diferencias pueden ser debidas a variaciones en la humedad, textura, etc. entre los dos substratos, que pueden facilitar que la larva está expuesta u mayores cantidades del insecticida en el caso de la hoja, o también debidas a una ingestión del insecticida cuando la larva realiza mordiscos exploratorios en la hoja.
En aplicaciones típicas de tcbufcnocida. a una concentración de 400 ppm, sobre adultos
de carpocapsa no se observó ningún efecto en la longevidad de las mariposas que fue entre 6 y 7 días.
Tcbufcnocida (RH 5992) fue menos activo que el también anàlogo de la hormona ccdisona RH 2485 cuando larvas neonatas fueron alimentadas con man Amas tratadas, siendo la LC50 de éste último compuesto unas cuatro veces menor que la de
tcbufcnocida. Fcnoxicarb no tuvo ningún efecto larvicida cuando larvas neonatas se alimentaron con manzanas tratadas con este insecticida a una dosis de 200 ppm. No se comprobó si dichas larvas podían desarrollarse y convertirse posteriormente en adultos normales. Diflubcnzurón tampoco tuvo ningún efecto larvicida cuando larvas neonatas se alimentaron con manzanas tratadas con diflubcnzurdn a una dosis de 200 ppm. No se observó nada anormal cuando se realizó la evaluación de la mortalidad larvaria, pero en
este caso tampoco se comprobó si las larvas continuarían desarrollándose normalmente.
Se estudiaron los efectos sublctalcs de tcbufcnocida sobre huevos, por lo que se evaluó
la duración del desarrollo embrionario de los huevos que sobrevivieron a aplicaciones
típicas de tebufenocida Se obtuvo un retraso en el desarrollo embrionario que se produjo cuando los tratamientos se realizaron sobre huevos recién puestos (estado blanco) y cuando estaban aproximadamente en la mitad de su desarrollo (anillo rojo), pero no se observó cuando los huevos tratados estaban cerca de su eclosión. Esto indica que tebufenocida afecta en cierta forma el desarrollo embrionario, aunque a partir de cierto punto del desarrollo tebufenocida ya no produce ningún efecto en el embrión. No
se obtuvieron diferencias entre las distintas dosis de tebufenocida aplicadas, auque sí
entre éstas y el control.
Se encontró que tebufenocida afecta a la fecundidad y viabilidad de los huevos puestos
cuando se aplica típicamente sobre mariposas de carpocapsa. La fecundidad de hembras de carpocapsa fue menor cuando éstas fueron tratadas con tebufenocida a 400 ppm; la fertilidad también fue menor cuando se trataron tanto machos como hembras a la misma dosis con tebufenocida. También la fecundidad y fertilidad fueron menores
que el testigo cuando se trataron mariposas de carpocapsa a dosis iguales o inferiores a
200 ppm, aunque en este caso las diferencias no eran estadísticamente significativas.
Tebufenocida afectó a la fecundidad y fertilidad de adultos de C. pomonella cuando
éstos fueron expuestos durante 24 horas a follaje tratado en campo con tebufenocida a una dosis de 330 g ma/ha, donde los porcentajes de reducción obtenidos en el tratamiento con tebufenocida fueron del 66,8% en la fecundidad y del 73,6% en la fertilidad respecto al testigo.
Aunque no se obtuvieron diferencias significativas entre tratamientos, cuando se
suministró tebufocida (0,1 ppm) en dieta a larvas mantenidas en condiciones diapausantes durante 50 días el porcentaje de larvas en diapausa fue del 57%, mientras que en el control fue del 99%. Tampoco se observaron diferencias significativas entre tratamientos en la rotura de la diapausa cuando se cambiaron las condiciones a no
diapausantes.
En tratamientos en campo contra la primera generación de carpocapsa, no se obtuvieron
diferencias significativas entre las aplicaciones de tebufenocida aplicado como ovicida
o como larvicida. La carencia de diferencias entre los distintos momentos de aplicación
puede indicar que en aplicaciones tempranas se obtiene el beneficio del control ovicida
de tebufenocida, y en aplicaciones tardías la ventaja del efecto larvicida. Cuando tebufenocida fue aplicado como ovicida (50 grados día) se obtuvo un 5% de penetraciones profundas en fruto. Cuando fue aplicado como larvicida (139 grados día), se obtuvo un 8% de entradas. Sin embargo cuando la aplicación fue entre estos dos
periodos, el porcentaje de entradas fue del 21%. Esto puede ser debido a que en esta aplicación, tebufenocida actuó típicamente sobre un porcentaje considerable de huevos, y por lo tanto el tratamiento ovicida no fue eficaz, y demasiado pronto para actuar como larvicida.
Se obtuvieron diferencias en el porcentaje de mortalidad larvaria entre volúmenes de
caldo utilizado en campo, siendo del 64,4% cuando se utilizaron 935 I/ha y del 81,1% cuando se utilizaron 3.741 I/ha. Esto indica la importancia de alcanzar un buen nivel de cobertura en aplicaciones con tebufenocida para obtener un nivel de control alto. En las aplicaciones de tebufenocida en campo, prácticamente no disminuyó el porcentaje de control larvario de este insecticida hasta 24 días después de su aplicación. Por lo tanto, tebufenocida es un insecticida que dispone de una persistencia considerable, mayor que un insecticida como por ejemplo metílazinfos. De los cuadyuvantes ensayados, parece ser que Silwet-77 y Latron AG-98 incrementan la persistencia de tebufenocida.
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Chowdhury, Subrata. « Characterization of some aspects of the isolates of Cydia pomonella granuloisis virus (CpGV) ». Thesis, University of Reading, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316132.
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Abaajeh, Asomiba Rita. « Evaluation of entomopathogenic fungi (ascomycota) for the control of cydia pomonella (lepidoptera : tortricidae) ». Thesis, Cape Peninsula University of Technology, 2014. http://hdl.handle.net/20.500.11838/836.
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A THESIS PRESENTED TO CAPE PENINSULA UNIVERSITY OF TECHNOLOGY IN FULFILMENT OF THE REQUIREMENTS FOR THE MASTERS OF TECHNOLOGY DEGREE IN HORTICULTURE.
IN THE FACULTY OF APPLIED SCIENCES
2014Codling moth ([Cydia pomonella (Lepidoptera: Tortricidae]) infest pomes resulting in high production losses to fruit farmers in South Africa and globally. Many farmers are adopting biocontrol methods including the use of entomopathogens as alternatives to synthetic insecticides for sustainable management of Arthropod pests. Research activities on screening and application of entomopathogenic fungi (EPF) have intensified in recent years. This study was carried out to isolate and identify virulent indigenous entomopathogenic fungal strains from soils of selected locations in the Western Cape region of South Africa that are pathogenic against codling moth (Cydia pomonella (Linn) [Lepidoptera: Totricidae]) and to evaluate the possiblility of combining semiochemicals and fungal inoculums in a simulated attract-and-fungus contamination system for codling moth control. Soil samples were collected from 10 locations in the Western Cape, South Africa for the isolation of entomopathogenic fungi (EPF) by baiting the soil samples with 5th instar larvae of codling moths. Fungal strains were identified and characterized using light microscopy and DNA analysis (internal transcribed spacer region) and elongation factor 1-α (EF 1-α) genes of fungal cultures. Thirty-nine (39) isolates belonging to six species were obtained; Purpureocillium lilacinum (8 isolates), Fusarium oxysporum (five isolates), Fusarium polyphialidicum (two isolates), Beauveria pseudo-bassiana (one isolate), Aspergillus flavus (three isolates) and Metarhizium robertii (20 isolates). Generally, M. robertsii was the most frequently encountered species representing 51% of the total number of isolates collected from the soil samples. This is the first report of the isolation of M. robertsii in southern Africa. A screening test to identify the most virulent fungal strains against codling moth was carried out on 39 isolates by immersing 5th instar larvae of C. pomonella into aqueous spore suspension 1 x 108 conidia ml-1. Mortality data from the immersion bioassay indicated that the 39 fungal isolates were pathogenic against fifth instar larvae of codling moth inducing 47-85% insect mortality at an infective concentration of 1 x108 spores’ ml-1, 5 days post-treatment. Two fungal strains MTL151 and GW461 induced over 85% larval mortality and were selected for further evaluations. The effect of MTL151 and GW461 on egg hatchability of 0-day old eggs was evaluated by exposing freshly laid eggs on wax papers that were pre-treated with fungal spores ranging from 103 -108 spores/ml. Egg hatchability reduced significantly from 93-71% (GW461) and 95-66% (MTL151) as spore concentration increases from1 x 103 to 1 x 108 spores ml-1, respectively. The highest spore concentration significantly inhibited egg hatchability resulting in lower egg hatchability compared to that obtained with the cypermethrin containing commercial insecticide (Fruitfly [registered by Kombat (PTY) Ltd] ) tested at the recommended dose of 0.25 ml/250 ml of water. The potential of the two M. robertsii strains to protect apples from infestation by codling moth neonates was assessed in an apple fruit bioassay under laboratory and field bioassay. Codling moth neonates were exposed to apples that were sprayed topically with varied conidia concentrations (103 - 108 sporesml-1). The mean number of participating apple fruits having developing/developed larvae in the core/flesh significantly reduced from 5.3 to 1 and 7.6 to 1 for MTL151 and GW461, respectively as spore concentrations increased from 1 x103 to 1x 108 spores/ml-1. A concurrent decrease in apple fruit rot as conidia concentration increased was observed. Up to 90% of apples treated with 1 x 108 spores/ml-1 had no larva present in their cores and this result compared favourably with the commercial pesticide (Fruitfly) used at a recommended dose of 0.25g/250 ml of water. No significant difference was found between the EC50 values of 1.2 x 103 (CI=1.2 x 102 -1 x 105) (MTL151) and 1.1 x 105 (CI =7 x103 – 5.6x105) (GW461) spores ml-1. However, neither the two M. robertsii strains nor the insecticide deterred the neonates from feeding on the surface of the fruits. The attraction responses of male and female adult codling moths to butyl hexanoate and codlemone blend; butyl hexanoate (0.025 mg / ml of hexane) and codlemone (0.1 mg / ml of hexane) in a ratio of 1:1 (0.5 ml: 0.5 ml from both solutions) were assessed in a one-choice wind tunnel olfactory bioassay during scoto-phase in the absence of fungal spores. The blend attracted more females (69%) than males (66.7%), however these responses were not significantly different (P > 0.5). The prospect of integrated use of entomopathogenic fungal conidia and semiochemical blend for control of C. pomonella adults was assessed in a wind tunnel containing the combo lure and M. robertsii (MTL151) spores formulated as a powder (250 mg) or aqueous spore suspension (3.1 x 108 spores m-1 ± 7 x 102 sporesml-1). Insect attraction, mean number of spores picked per insect and insect mortality was assessed. No significant difference (P > 0.5) was observed in the number of inoculi picked by unsexed adult moths in the two conidial formulations tested; spore powder (3.1 x 103 ± 1 x 103 spores ml-1) and aqueous spore suspension (3.1 x 103 ± 7 x 102 spores ml-1). No mortality was recorded among fungus or control-treated moths. Both M. robertsii (MTL151) spore formulations did not significantly (P > 0.05) affect the attraction responses of the insects to the combo lure; powder (73.3 ± 3.3%) and aqueous (68.6 ± 2.9%) compared to the control treatment (without the fungal spores) (70 ± 0.5 %). These results suggest that the fungus did not inhibit the attraction of moths by semiochemicals. Despite the successful autoinoculation of moths with fungal spores, the level of contamination was too low to induce mortality among adult moths. This study opens up opportunities for research in attract-and-fungus contamination delivery systems. This is the first report of the occurrence of M. robertsii in the southern Africa. Further, results from this study indicates that C. pomonella is susceptible to indigenous South African entomopathogenic fungi and 2 indigenous M. anisopliae strains, MTL151 and GW461 provided adequate protections against codling moth larval infestations of apple fruits. Future research endeavours to improve adherence of conidia to adult moth cuticle is recommended. Key words: Entomopathogenic fungi (EPF), codling moth, B. pseudobassiana, M. robertsii, larvae, pathogenicity and biological control, coddlemone, butyl hexanoate, attraction, semiochemicals.
Livres sur le sujet "Cydia pomonella"
1
Branch, British Columbia Horticultural, dir. The lesser apple-worm (Laspeyresia prunivora Walsh) [and] codling-moth (Cydia pomonella Linn.). Victoria, B.C : W.H. Cullin, 1997.
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Martian, Prudence. Mating disruption as an alternative to traditional forms of control of Cydia pomonella in apple orchards. Bellingham, Wash : Western Washington University, 1994.
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Bajwa, Waheed Ibrahim. Integration of microbial and chemical controls against codling moth, Cydia pomonella (L.) : Laboratory and field evaluation. 1996.
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Setyobudi, Lilik. Seasonality of codling moth, Cydia pomonella L. (Lepidoptera : Olethreutidae) in the Willamette Valley of Oregon : Role of photoperiod and temperature. 1989.
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Chen, Maohua, Xinle Duan, Yuting Li, Qiulei Men et Fanghao Wan. « Codling Moth Cydia pomonella (L.) ». Dans Biological Invasions and Its Management in China, 285–98. Dordrecht : Springer Netherlands, 2017. http://dx.doi.org/10.1007/978-94-024-0948-2_16.
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Gabrys, Beata, John L. Capinera, Jesusa C. Legaspi, Benjamin C. Legaspi, Lewis S. Long, John L. Capinera, Jamie Ellis et al. « Codling Moth, Cydia pomonella (Linnaeus) (Lepidoptera : Tortricidae) ». Dans Encyclopedia of Entomology, 957. Dordrecht : Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_743.
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Lombarkia, Nadia, et Sylvie Derridj. « Incidence of apple fruit and leaf surface metabolites on Cydia pomonella oviposition ». Dans Proceedings of the 11th International Symposium on Insect-Plant Relationships, 79–87. Dordrecht : Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-2776-1_9.
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Lischke, Heike. « A Model to Simulate the Population Dynamics of the Codling Moth (Cydia Pomonella) : Reproduction ». Dans Analyse dynamischer Systeme in Medizin, Biologie und Ökologie, 170–76. Berlin, Heidelberg : Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-77020-3_21.
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McDonough, Leslie M., et Harry G. Davis. « Development of Economical Population Control of Codling Moth (Cydia pomonella) by Disrupting Communication with Semiochemicals ». Dans ACS Symposium Series, 154–68. Washington, DC : American Chemical Society, 1994. http://dx.doi.org/10.1021/bk-1994-0557.ch013.
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Zeba, Arshi, Rafakat Hussain, Miss Aarti et Anita Panwar. « HIGHLIGHTS OF MAJOR PROBLEMS AND THEIR MANAGEMENT IN APPLE ORCHARD ». Dans Futuristic Trends in Agriculture Engineering & ; Food Sciences Volume 2 Book 9, 316–22. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2023. http://dx.doi.org/10.58532/v2bs9ch23.
Texte intégralRésumé :
Apple is considered an important fruit crop which belongs to the family Rosaceae. Apples are very prone to many different types of biotic and abiotic factors such as insect-pests, diseases and unfavourable weather conditions which may cause damage to apple orchards. The most common pests that cause significant damage to apple include mites, apple scab (Venturia inaequalis), Powdery mildew fungus (Podosphaera leucotricha), Fire blight of Apple (Erwinia amylovora), Root rots (Phytophthora spp.), Codling moth (Cydia pomonella), Scale insect (Quadraspidiotus perniciosus), and certain grasses and weeds which compete with apple trees for nutrient and water (Walsh et al., 1996). IPM techniques are more common and best methods to control the pests, viz. Proper sanitation, mechanical destruction of insects, growing of other crops attracting the major pests of apple, utilization of natural enemies, etc
Actes de conférences sur le sujet "Cydia pomonella"
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Tomashevich, N. S., et A. A. Tsygichko. « ENTOMOPATHOGENIC ACTIVITY OF GRANULOVIRUS STRAINS AGAINST CYDIA POMONELLA ». Dans X Международная конференция молодых ученых : биоинформатиков, биотехнологов, биофизиков, вирусологов и молекулярных биологов — 2023. Novosibirsk State University, 2023. http://dx.doi.org/10.25205/978-5-4437-1526-1-133.
Texte intégralRésumé :
The paper presents the results of the four granulosa virus of the apple moth strains entomopathogenic activity from the bioresource collection of the Federal Research Center of Biological Plant Protection «State Collection of Entomoacariphages and Microorganisms» against C. pomonella in vitro. The most effective strains of the apple moth granulosa virus (BZR GV 11 and BZR GV L-3) were revealed. The level of entomopathogenic activity of them was 80,6 % on the tenth day of the experiment.
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Tsygichko, A. A., A. M. Asaturova, M. V. Pushnya, E. G. Snesareva et E. Yu Rodionova. « Screening of the promising granulovirus strains of Cydia pomonella L. » Dans CURRENT STATE, PROBLEMS AND PROSPECTS OF THE DEVELOPMENT OF AGRARIAN SCIENCE. Federal State Budget Scientific Institution “Research Institute of Agriculture of Crimea”, 2019. http://dx.doi.org/10.33952/09.09.2019.146.
Texte intégral
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Dmitriyeva, S. V., et I. M. Mityushev. « The results of field trials of the codling moth pheromone preparations in 2020 ». Dans Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-70.
Texte intégralRésumé :
This article presents the results of field screening of pheromone preparations of the codling moth, Cydia pomonella L., conducted in 2020 under conditions of the Central Region of the Russian Federation. The new «Tube» type dispensers were tested vs. standard foil-polyethylene dispenser.
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Tsygichko, A. A., A. M. Asaturova, M. D. Pavlova et N. S. Tomashevich. « Insecticidal properties of strains of the granulosa virus of the codling moth from the Bioresource collection of FSBI VNIIBZR ». Dans 2nd International Scientific Conference "Plants and Microbes : the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.259.
Texte intégralRésumé :
The insecticidal activity of strains from DBK of the Federal State Budget Scientific Institution VNIIBZR “State Collection of Entomoacarifagi and Microorganisms” was studied with respect to the test object Galleria mellonella L. and with respect to the target insect Cydia pomonella L. It was revealed that strain BZR 14 is promising for further study and development of a laboratory sample based on it.
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Owen-Smith, Paul. « Control of codlling moth (Cydia pomonella) using reduced pesticide rates and rapid reapplication ». Dans 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.114841.
Texte intégral
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Gyrnets, E. Yu, et A. M. Asaturova. « SCREENING OF BACTERIAL STRAINS IN RELATION TO THE LABORATORY POPULATION OF THE LARGE WAX MOTH GALLERIA MELLONELLA L. AND THE NATURAL POPULATION OF THE APPLE MOTH CYDIA POMONELLA L. » Dans X Международная конференция молодых ученых : биоинформатиков, биотехнологов, биофизиков, вирусологов и молекулярных биологов — 2023. Novosibirsk State University, 2023. http://dx.doi.org/10.25205/978-5-4437-1526-1-68.
Texte intégralRésumé :
Studies have been conducted to assess the insecticidal activity of bacterial strains from the of the bioresource collection of the Federal Research Center of Biological Plant Protection “State Collection of Entomoacariphages and Microorganisms”. The experiments were carried out under laboratory conditions in relation to a laboratory test object of the large wax moth Galleria mellonella L. and an economically significant phytophagus — the natural population of the apple fruit moth Cydia pomonella L.
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Tsygichko, A. A. « VIRUSES OF GRANULOSIS OF THE APPLE MOTH FROM THE BIORESOURCE COLLECTION OF THE FSBSI FRCBPP WITH INSECTICIDAL ACTIVITY ». Dans X Международная конференция молодых ученых : биоинформатиков, биотехнологов, биофизиков, вирусологов и молекулярных биологов — 2023. Novosibirsk State University, 2023. http://dx.doi.org/10.25205/978-5-4437-1526-1-265.
Texte intégralRésumé :
The entomopathogenic activity of the 18 apple codling moth granulosis virus strains from the bioresource collection of the Federal Research Center of Biological Plant Protection «State Collection of Entomoacariphages and Microorganisms» against Cydia pomonella caterpillars was assessed in vitro. The most effective strains of the apple moth granulosa virus (BZR GV 11 and BZR GV L-3) were revealed, the level of entomopathogenic activity of which was 90,3-100 % on the 10th day of the experiment.
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Jaffe, Benjamin D. « Apple orchard protection from codling moth (Cydia pomonella) using an attract-and-kill trap ». Dans 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.111096.
Texte intégral
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Odobescu, Vasilisa, Svetlana Jalba, Natalia Raileanu et Vladimir Sleahtici. « Sinteza componenților activi ai feromonilor sexuali sintetici a viermelui merelor (Cydia Pomonella L.) - E8,E10-dodecenol și a moliei strugurilor (Lobesia Botrana S.) - E7,Z9-dodecadienol şi componenții minori a acestora E-8-dodecenol și E-9-dodecenilacetat ». Dans International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.22.
Texte intégralRésumé :
The aim of our study was the synthesis of the active components of the apple worm, Cydia pomonella L. - E8, E10-dodecenol and the grape moth, Lobesia botrana S. - E7, Z9-dodecadienol and their minor components E-8-dodecenol and E-9 -dodecenyl acetate. Different amounts of components were impregnated in each rubber dispenser. Pheromone traps was given to be tested in field monitoring trials to determine the most effective optimal pheromone blend ratio in the geographical and climatic conditions of the Republic of Moldova.
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Shleahtichi, Vladimir, Natalia Raileanu, Vasilisa Odobescu et Svetlana Jalba. « Rolul componenţilor minori asupra eficienţei feromonului sexual al viermelui merelor ». Dans Scientific International Symposium "Plant Protection – Achievements and Perspectives". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2023. http://dx.doi.org/10.53040/ppap2023.74.
Texte intégralRésumé :
In this paper, the influence of the addition of minor components: trans-8, trans-10-dodecadienal; trans-9-dodecenol; tetradecanol on the biological effectiveness of the basic component (Basic component E8,E10-C12OH) of the synthetic sex pheromone of the codling moth Cydia pomonella L. was evaluated. Pheromonal compositions have been prepared by adding different concentrations of these minor components to the basic component. The best result in field tests was shown by the variant where rubber dispensers contained 4% of each minor component.