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Journal articles on the topic 'Sawfly larvae'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Perveen, Nahdia, Eman Rashid, Huda Aitzaz, et al. "Assessing the Efficacy of Metarhizium anisopliae (Metschnikoff) Sorokin as a Biological Control Agent against Rose Sawfly Larvae." Enfoque UTE 15, no. 1 (2024): 16–20. http://dx.doi.org/10.29019/enfoqueute.1004.

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Increasing concerns over the environmental impact of chemical pesticides have prompted the exploration of alternative, and eco-friendly solutions for controlling insect pests. The use of entomopathogenic fungus (EPF) as a biological control agent is of paramount importance. We aimed to investigate the effect of different concentrations of Metarhizium anisopliae (Metschnikoff) Sorokin on larval mortality and pupal formation, of sawfly larvae, a major pest of rose plants. Our study revealed a concentration-dependent effect of M. anisopliae on sawfly larvae. At 7 days after EPF exposure, the high

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Perveen, Nahdia, Eman Rashid, Huda Aitzaz, et al. "Assessing the Efficacy of Metarhizium anisopliae (Metschnikoff) Sorokin as a Biological Control Agent against Rose Sawfly Larvae." Enfoque UTE 15, no. 1 (2024): 16–20. https://doi.org/10.29019/enfoqueute.1004.

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Increasing concerns over the environmental impact of chemical pesticides have prompted the exploration of alternative, and eco-friendly solutions for controlling insect pests. The use of entomopathogenic fungus (EPF) as a biological control agent is of paramount importance. We aimed to investigate the effect of different concentrations of Metarhizium anisopliae (Metschnikoff) Sorokin on larval mortality and pupal formation, of sawfly larvae, a major pest of rose plants. Our study revealed a concentration-dependent effect of M. anisopliae on sawfly larvae. At 7 days after EP

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3

Vikberg, Veli, and Matti Nuorteva. "On the rearing of Nesoselandria morio (Fabricius) and Birka cinereipes (Klug) (Hymenoptera, Tenthredinidae), with descriptions of their larvae." Entomologica Fennica 8, no. 1 (1997): 27–38. http://dx.doi.org/10.33338/ef.83918.

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The larva of a Holarctic selandrine sawfly Nesoselandria morio (Fabricius) from southem Finland which feeds on mosses is described. Compared with the larva of Birka cinereipes (Klug), which feeds on forget-me-nots (Myosotis scorpioides), it shows some apomorphic characters: fusion of four apical antennal segments and reduction of sixth dorsal annulet on the third abdominal segment. It is the first sawfly larva known to feed on mosses (Bryopsida). The cocoon has a special structure. The larvae of the tribe Aneugmenini have an extra moult after the feeding period and differ in that respect from

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4

Vlieger, L., P. M. Brakefield, and C. Müller. "Effectiveness of the defence mechanism of the turnip sawfly, Athalia rosae (Hymenoptera: Tenthredinidae), against predation by lizards." Bulletin of Entomological Research 94, no. 3 (2004): 283–89. http://dx.doi.org/10.1079/ber2004299.

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AbstractThe turnip sawfly, Athalia rosae Linnaeus, is a pest on cruciferous crops. Larvae sequester secondary plant compounds, namely glucosinolates, in their haemolymph. When attacked, their integument is easily disrupted and a droplet of haemolymph is exuded (‘easy bleeding’). This has been shown to be an effective, chemical-based, defence against invertebrate predators. The efficiency of this proposed defence was tested against a vertebrate predator, using groups of the iguanid lizard Anolis carolinensis Voigt as a model predator. Caterpillars of Pieris rapae Linnaeus and Pieris brassicae L

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Tessele, Bianca, Juliana Sperotto Brum, Ana Lucia Schild, Mauro P. Soares, and Claudio S. L. Barros. "Sawfly larval poisoning in cattle: Report on new outbreaks and brief review of the literature." Pesquisa Veterinária Brasileira 32, no. 11 (2012): 1095–102. http://dx.doi.org/10.1590/s0100-736x2012001100004.

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Sawfly larval poisoning (SLP) is an acute hepatotoxicosis documented in livestock in Australia, Denmark and in countries of South America. It is caused by the ingestion of the larval stage of insects of the suborder Symphyta, order Hymenoptera, commonly known as "sawfly". Three species of sawfly are reportedly involved in the toxicosis. The insect involved in Australian SLP is Lophyrotoma interrupta (Pergidae), in Denmark the cause of SLP is the ingestion of the larvae Arge pullata (Argidae), and in South American countries documented outbreaks of SLP were caused by the ingestion of yet anothe

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6

Liston, Andrew, Ewald Altenhofer, Romana Netzberger, and Marko Prous. "Biology of two European Tenthredo species (Hymenoptera, Tenthredinidae) feeding on Gentiana." Deutsche Entomologische Zeitschrift 67, no. 1 (2020): 13–18. http://dx.doi.org/10.3897/dez.67.49741.

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Very few sawflies using Gentianaceae as larval host plants have been recorded. We identified larvae collected in Austria on Gentiana asclepiadea L. as Tenthredo atra Linnaeus, 1758 and T. propinqua Klug, 1817. If its current taxonomic circumscription as a single species is accepted, T. atra is a highly polyphagous species, whereas T. propinqua may be more specialised: Gentiana asclepiadea is its first recorded host. We sequenced plant DNA from the head of one T. propinqua larva, which confirmed that it had been feeding on this plant. This is the first recorded use of G. asclepiadea by sawfly l

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Liston, Andrew, Ewald Altenhofer, Romana Netzberger, and Marko Prous. "Biology of two European Tenthredo species (Hymenoptera, Tenthredinidae) feeding on Gentiana." Deutsche Entomologische Zeitschrift 67, no. (1) (2020): 13–18. https://doi.org/10.3897/dez.67.49741.

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Very few sawflies using Gentianaceae as larval host plants have been recorded. We identified larvae collected in Austria on Gentiana asclepiadea L. as Tenthredo atra Linnaeus, 1758 and T. propinqua Klug, 1817. If its current taxonomic circumscription as a single species is accepted, T. atra is a highly polyphagous species, whereas T. propinqua may be more specialised: Gentiana asclepiadea is its first recorded host. We sequenced plant DNA from the head of one T. propinqua larva, which confirmed that it had been feeding on this plant. This is the first recorded use of G. asclepiadea by sawfly l

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8

Lucarotti, Christopher J., Beatrixe H. Whittome-Waygood, Renée Lapointe, Benoit Morin, and David B. Levin. "Pathology of aGammabaculovirusin Its Natural Balsam Fir Sawfly (Neodiprion abietis) Host." Psyche: A Journal of Entomology 2012 (2012): 1–13. http://dx.doi.org/10.1155/2012/646524.

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TheNeodiprion abietis Gammabaculovirus(Baculoviridae: NeabNPV) is virulent, highly contagious, and infects only midgut epithelial cells of balsam fir sawfly larvae, but infections can carry through to adult sawflies in the midgut. Larval infections are characterized by hypertrophy of midgut epithelial cell nuclei, where virogenic stromata develop to produce nucleocapsids that are singly enveloped before occlusion into occlusion bodies. Infected, occlusion body-laden cells slough from the midgut epithelium as a result of a dissolution of the basal lamina. Infected cells undergo lysis, and viral

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9

Achhami, Buddhi B., Gadi V. P. Reddy, Jamie D. Sherman, Robert K. D. Peterson, and David K. Weaver. "Effect of Precipitation and Temperature on Larval Survival of Cephus cinctus (Hymenoptera: Cephidae) in Barley Cultivars." Journal of Economic Entomology 113, no. 4 (2020): 1982–89. http://dx.doi.org/10.1093/jee/toaa097.

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Abstract Host plant traits strongly affect survivorship of insect herbivores, and host suitability is especially important for the wheat stem sawfly, Cephus cinctus Norton, which spends its entire egg, larval, and pupal periods in a single stem. Measuring larval survival inside stems from egg hatch through diapause-mediated dormancy is a potential measure of population size for the next year but is also useful in assessing effects of growing season precipitation and temperature. Larval growth is synchronized with host plant growth, and the larva cannot switch hosts. Thus, incorporating plant p

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10

Anstey, Lynne J., Dan T. Quiring, and Don P. Ostaff. "Seasonal changes in intra-tree distribution of immature balsam fir sawfly (Hymenoptera: Diprionidae)." Canadian Entomologist 134, no. 4 (2002): 529–38. http://dx.doi.org/10.4039/ent134529-4.

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AbstractA field study was carried out to determine the intracrown distribution of the balsam fir sawfly, Neodiprion abietis Harris (Hymenoptera: Diprionidae), throughout the season on balsam fir, Abies balsamea L. (Pinaceae), during the first 2 years of an outbreak in western Newfoundland. Eggs were usually laid one per needle on current-year shoots, and the following year, newly emerged larvae usually initiated feeding on the same shoots. Balsam fir sawfly larvae were gregarious on needle and shoot levels in the early instars but gradually became solitary as larvae developed. The process of b

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11

Beyaert, Ivo, Diana Köpke, Josefin Stiller, et al. "Can insect egg deposition ‘warn’ a plant of future feeding damage by herbivorous larvae?" Proceedings of the Royal Society B: Biological Sciences 279, no. 1726 (2011): 101–8. http://dx.doi.org/10.1098/rspb.2011.0468.

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Plant anti-herbivore defence is inducible by both insect feeding and egg deposition. However, little is known about the ability of insect eggs to induce defences directed not against the eggs themselves, but against larvae that subsequently hatch from the eggs. We studied how oviposition (OP) by the sawfly Diprion pini on Pinus sylvestris foliage affects the plant's defensive potential against sawfly larvae. Larvae that initiated their development on P. sylvestris twigs on which they hatched from eggs gained less weight and suffered higher mortality than those fed on egg-free twigs. The poor p

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12

Klingeman, W. E., F. Chen, H. J. Kim, and P. C. Flanagan. "Feeding Preferences of Dogwood Sawfly Larvae Indicate Resistance in Cornus." Journal of Environmental Horticulture 25, no. 3 (2007): 134–38. http://dx.doi.org/10.24266/0738-2898-25.3.134.

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Abstract Dogwood sawfly (Macremphytus tarsatus Say) is a native, phytophagous insect that relies on Cornus sp. host plants for larval development. Feeding injury by dogwood sawflies is primarily aesthetic and seldom results in host plant death. Still, native and non-native dogwoods have not been evaluated for susceptibility to larval feeding by this aesthetically damaging wasp. Ten species or cultivars of dogwoods that are either naturalized native plants or economically significant landscape plants were assayed for host suitability to dogwood sawfly larvae in no-choice and choice experiments.

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13

Rahman-Soad, Asifur, Norbert Bittner, and Monika Hilker. "Pine Response to Sawfly Pheromones: Effects on Sawfly’s Oviposition and Larval Growth." Insects 15, no. 6 (2024): 458. http://dx.doi.org/10.3390/insects15060458.

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Insect pheromones have been intensively studied with respect to their role in insect communication. However, scarce knowledge is available on the impact of pheromones on plant responses, and how these in turn affect herbivorous insects. A previous study showed that exposure of pine (Pinus sylvestris) to the sex pheromones of the pine sawfly Diprion pini results in enhanced defenses against the eggs of this sawfly; the egg survival rate on pheromone-exposed pine needles was lower than that on unexposed pine. The long-lasting common evolutionary history of D. pini and P. sylvestris suggests that

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14

Vikberg, Veli, and Juhani Itämies. "Buckthorn (Hippophaë rhamnoides L., Elaeagnaceae), a new important food plant for the larva of Tenthredo vespa Retzius in Finland (Hymenoptera, Tenthredinidae)." Entomologica Fennica 10, no. 4 (1999): 201–8. http://dx.doi.org/10.33338/ef.84023.

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In Finland, the distribution of Tenthredo vespa Retzius corresponds well to that of the wild buckthorn (Hippophaë rhamnoides L.). The larvae of this sawfly were shown to feed on the leaves of the plant in an ovipositing experiment and in field studies on the phenology of larvae in buckthorn bushes. It seems that the buckthorn is the main food plant for the larva along the shore of the Gulf of Bothnia. The larva can also feed on cultivated buckthorn, as it appeared in St. Petersburg, Russia.

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15

Liston, Andrew D., and Craig Michell. "Salix herbacea L. as a host of the leaf-mining sawfly Scolioneura tirolensis (Enslin, 1914) (Hymenoptera: Symphyta, Tenthredinidae)." Entomologist's Monthly Magazine 154, no. 2 (2018): 121–24. http://dx.doi.org/10.31184/m00138908.1542.3919.

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The first definite records of the willow species Salix herbacea L. as a host of the leaf-mining sawfly Scolioneura tirolensis (Enslin, 1914) are presented. This is currently the only leaf-mining sawfly species whose larvae are known to feed on this host.

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16

Malagón-Aldana, Leonardo A., Francisco Serna, and David R. Smith. "On the natural history of the willow sawfly Nematus oligospilus (Hymenoptera, Tenthredinidae) inhabiting Salix humboldtiana, in Colombia." Journal of Hymenoptera Research 55 (April 28, 2017): 189–99. https://doi.org/10.3897/jhr.55.11566.

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The willow sawfly, Nematus oligospilus Förster, has recently been recorded from Colombia. Natural populations were searched for in Bogotá City, where one of the host plants, Salix humboldtiana, grows as an ornamental tree. Larvae and cocoons were found, which thrive on the leaves of this plant. Parthenogenetic reproduction of this sawfly was confirmed. Fecundity of every female was estimated through counting the number of eggs laid on the leaves of the host. In addition, some variations in the color pattern of the adult are described and several of its morphological traits measured. For the la

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17

Boyd, David W., and Christopher L. Cheatham. "Evaluation of Twelve Genotypes of Hibiscus for Resistance to Hibiscus Sawfly, Atomacera decepta Rohwer (Hymenoptera: Argidae)." Journal of Environmental Horticulture 22, no. 3 (2004): 170–72. http://dx.doi.org/10.24266/0738-2898-22.3.170.

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Abstract Twelve genotypes of hibiscus were evaluated for resistance to hibiscus sawfly, a minor pest of hibiscus. Evaluations were conducted by counting eggs deposited on the hibiscus and larvae feeding on the hibiscus. Plants were evaluated at the end of the study with a damage rating. Three genotypes demonstrated resistance or tolerance to sawfly feeding: Hibiscus acetosella, H. aculeatus, and H. grandiflora. All three of these genotypes had few, if any, eggs or larvae and were given the lowest damage rating among the genotypes evaluated.

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18

Krams, Ronalds, Tatjana Krama, Guntis Brūmelis, et al. "Ecological traps: evidence of a fitness cost in a cavity-nesting bird." Oecologia 196, no. 3 (2021): 735–45. http://dx.doi.org/10.1007/s00442-021-04969-w.

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AbstractHabitat quality has direct effects on the evolutionary fitness of breeding organisms, which is why it is believed that animals tend to have an evolved preference for the best possible habitats. However, some animals may mistakenly choose to reproduce in habitats that decrease their fitness, resulting in ‘ecological traps’. In this study, we tested whether great tits (Parus major) attracted to areas affected by outbreaks of the great web-spinning sawfly (Acantholyda posticalis) had fitness detriments characteristic of ecological traps. Sawfly larvae consume pine needles, which decreases

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19

Лысиков and Pavel Lysikov. "CEPHUS PYGMAEUS INFLUENCE FOR WINTER WHEAT GRAIN DAMAGED BY HAPLOTHRIPS TRITICI AND EURYGASTER INTEGRICEPS, DEPENDING ON YEAR CLIMATE, VARIETY AND SURFACE MEZOFORMS IN THE SAMARA REGION FORESTS." Bulletin Samara State Agricultural Academy 1, no. 1 (2016): 65–68. http://dx.doi.org/10.12737/18333.

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The purpose of research is the reduction of wheat grain damage and bugs. Investigations were carried out by mezoform of the relief at the surfase profile length of about 8 km in soft winter wheat crops four grades: without a trace – Volga 86, Kinelsky 8, spinous – Kinel 4 and Konstantinovskaya. The damage of the grain of wheat thrips and chinch in the ears of the sawfly larvae from damaged and undamaged stems established under a microscope MBS-10 as described in V. I. Tanskiy. According to the degree of deformation grooves grain wheat thrips larvae distinguished three degrees of damage: mild,

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20

Nielsen, D. G., and M. J. Dunlap. "Scotch Pine, Evaluation of Selected Insecticides Against European Pine Sawfly, Wayne Co., Ohio, 1989." Insecticide and Acaricide Tests 16, no. 1 (1991): 275. http://dx.doi.org/10.1093/iat/16.1.275.

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Abstract Scotch pine, 1-1.5 m tall, growing in a Christmas tree plantation were used to evaluate insecticides against European pine sawfly larvae. Larvae were 15-20 mm in length when treatments were applied. Trees selected had at least one active colony of sawfly larvae. Sprays were applied 29 May under sunny skies, 15°C, and 8-16 km/h winds. The treatment area received 0.2 cm rainfall during the test period. A KWH backpack mistblower, operating at half throttle on aperature setting #3 for 15 s, was used to deliver 300 ml of finished spray to each of the 4 single-tree replicates/treatment. Spr

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21

Humble, Leland M. "Overwintering adaptations in Arctic sawflies (Hymenoptera: Tenthredinidae) and their parasitoids: cold tolerance." Canadian Entomologist 138, no. 1 (2006): 59–71. http://dx.doi.org/10.4039/n05-804.

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AbstractAlthough the extreme winter conditions of Arctic habitats are considered to be important determinants of the faunal composition of Arctic regions, the overwintering biology of most Arctic insects is unknown. A significant proportion of the insect fauna at high latitudes are hymenopterans, yet little information is available on their overwintering strategies. In this study I examined the overwintering strategies of willow gall-forming and catkin-feeding nematine sawflies and their parasitoids. All sawfly species overwintered as prepupae, were freezing-tolerant, and survived exposure to

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22

Collins, J. A., and H. Y. Forsythe. "Flea Beetle and Sawfly Control, 1992." Insecticide and Acaricide Tests 18, no. 1 (1993): 67. http://dx.doi.org/10.1093/iat/18.1.67.

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Abstract Materials were applied on 27 May for early instar BFB larval control and 3 Jun for mid-instar BS larval control to 20 × 20 ft plots in crop year blueberry fields at Township 25 (BFB) and Crawford (BS), Maine. There were 3 replications of each treatment in a completely random design with 5-ft untreated buffer strips around each plot; in the BFB test, there were only 2 replications for the ‘no insecticide’ treatment. Insecticides were applied at a rate of 25 gal/acre using a CO2-propelled, 30-inch boom sprayer with 4 flat spray, 800067 Teejet nozzles operating at 35 psi. At treatment, p

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23

Hodgkin, L. K., M. R. E. Symonds, and M. A. Elgar. "Leaders benefit followers in the collective movement of a social sawfly." Proceedings of the Royal Society B: Biological Sciences 281, no. 1796 (2014): 20141700. http://dx.doi.org/10.1098/rspb.2014.1700.

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The challenges of maintaining cohesion while making collective decisions in social or aggregating insects can result in the emergence of a leader or leaders. Larval aggregations of the steel-blue sawfly Perga affinis forage nocturnally, and some larvae lead the aggregation on foraging trips more often than expected by chance. We investigated the relationship between these leader and follower roles by comparing the weight and growth of individual larvae with different roles. Our observations reveal no significant difference between the growth of leaders and followers, suggesting that the role o

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24

Boev�, Jean Luc, and Jacques M. Pasteels. "Modes of defense in nematine sawfly larvae." Journal of Chemical Ecology 11, no. 8 (1985): 1019–36. http://dx.doi.org/10.1007/bf01020672.

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25

SHINOHARA, AKIHIKO, HIDEHO HARA, KATJA KRAMP, STEPHAN M. BLANK, and YUICHI KAMEDA. "Bird droppings on chestnut leaves or sawfly larvae: DNA barcodes verify the occurrence of the archaic Megaxyela togashii (Hymenoptera, Xyelidae) in Hokkaido, Japan." Zootaxa 4221, no. 2 (2017): 220. http://dx.doi.org/10.11646/zootaxa.4221.2.6.

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We made a molecular phylogenetic analysis using mitochondrial cytochrome oxidase subunit 1 (COI) gene sequences for ten unidentified Megaxyela larvae from Hokkaido, Honshu and Shikoku, Japan, and 15 identified adults of four Megaxyela, one Macroxyela and three Xyela species. It revealed that all larvae belonged to M. togashii Shinohara, 1992, which showed rather large intraspecific genetic variability even among the individuals from the same population. This is the first distribution record of M. togashii from Hokkaido. Megaxyela togashii is a univoltine species with a very short larval feedin

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Goulet, Henri, Paul Catling, and Brenda Kostiuk. "First record of Azalea Sawfly (<i>Euura lipovskyi</i>, Hymenoptera: Tenthredinidae) in Canada." Canadian Field-Naturalist 136, no. 1 (2022): 42–44. http://dx.doi.org/10.22621/cfn.v136i1.2859.

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Azalea Sawfly (Euura lipovskyi) larvae found feeding on foliage and flowers of cultivated Flame Azalea (Rhododendron calendulaceum) in Ottawa, Ontario, in late May 2021 are the first records of this sawfly in Canada. The native range of Azalea Sawfly includes the eastern United States, but the species has extended its distribution recently to the Pacific northwest of North America and Europe. Recorded foodplants include Rhododendron calendulaceum, Rhododendron luteum, Rhododendron obtrusum, Rhododendron occidentale, Rhododendron molle, Rhododendron viscosum, and possibly Early Azalea (Rhododen

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27

Pawar, B. Y., S. B. Gawade, D. D. Patil, R. T. Gaikwad, and Sharmila Shinde. "Eco-friendly Management of Mustard Sawfly Athalia lugens proxima (Klug) on Asalio (Lepidium sativum)." Journal of Scientific Research and Reports 31, no. 1 (2025): 391–98. https://doi.org/10.9734/jsrr/2025/v31i12781.

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The present research was under taken on the mansagement of mustard sawfly, Atthalia lugens proxima (Klug) on Asalio, Lepidium sativum. Athalia lugens proxima (Klug) (Hymenoptera, Tenthredinidae) commonly known as mustard sawfly is a major pest of mustard. Seeds are used for recovery of chronic brochial asthma and enhancing milk yield in both animals and human beings. The field experiment was conducted with eight treatments and three replications with plot size of 3 m x 4 m with design RBD. The experiment was conducted during three years 2020-21 to 2022-23 during peak pest infestation on the cr

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Collins, J. A., and H. Y. Forsythe. "Sawfly Control, 1991." Insecticide and Acaricide Tests 17, no. 1 (1992): 61. http://dx.doi.org/10.1093/iat/17.1.61a.

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Abstract Materials were applied on 11 Jun to 20- by 20-ft plots in a crop-year blueberry field at Deblois, Maine. There were 3 replications of each treatment in a completely random design with 5-ft untreated buffer strips around each plot. Insecticides were applied at a rate of 25 gal/ acre using a C02-propelled, 30-inch boom sprayer with 4 flat-spray, 800067 Teejet nozzles operating at 35 psi. Plants showed ca. 2% bloom and 98% fruit set at treatment. On sample dates indicated in table, 10 sweeps with a standard 12-inch sweep net were taken from the center of each plot; the larvae were counte

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Weinstein, P., and AD Austin. "Primary Parasitism, Development and Adult Biology in the Wasp Taeniogonalos Venatoria Riek (Hymenoptera: Trigonalyidae)." Australian Journal of Zoology 43, no. 6 (1995): 541. http://dx.doi.org/10.1071/zo9950541.

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The biology of the Australian wasp Taeniogonalos venatoria Riek was investigated using populations in the Adelaide Region during 1986-90. This species is unusual for a trigonalyid because it is a primary parasitoid of a pergid sawfly and can act facultatively as a hyperparasitoid. The wasp oviposits onto foliage, eggs are ingested by host larvae, eggs then hatch, and the larva penetrates the gut wall. Saline, acid saline, cathepsin and physical manipulation were effective in triggering eclosion. Eggs were viable on foliage for up to 5 months. Larval instars 1-3 are endoparasitic; 4-5 are ectop

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Roller, Ladislav, and Ján Kočišek. "A new species of Mesoneura (Hymenoptera, Tenthredinidae) associated with a xerothermic oak forest in the Western Carpathians, Slovakia." Journal of Hymenoptera Research 95 (February 24, 2023): 261–74. http://dx.doi.org/10.3897/jhr.95.100689.

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A new species of tenthredinid sawfly, Mesoneura tematinensis Roller, sp. nov., was discovered in the Tematinske kopce Mountains in the Western Carpathians in Slovakia. Adults of both sexes and larvae of different stages are described and illustrated. Based on morphology and DNA barcoding, the new species is closely related to Mesoneura opaca (Fabricius), a widespread oak sawfly in Europe, with which it occurs in the same locality and shares a common host plant. Larvae of the new species are part of a rich assemblage of a total of 13 Symphyta species that feed on leaves of the pubescent oak Que

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31

Roller, Ladislav, and Ján Kočišek. "A new species of Mesoneura (Hymenoptera, Tenthredinidae) associated with a xerothermic oak forest in the Western Carpathians, Slovakia." Journal of Hymenoptera Research 95 (February 24, 2023): 261–74. https://doi.org/10.3897/jhr.95.100689.

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A new species of tenthredinid sawfly, Mesoneura tematinensis Roller, sp. nov., was discovered in the Tematinske kopce Mountains in the Western Carpathians in Slovakia. Adults of both sexes and larvae of different stages are described and illustrated. Based on morphology and DNA barcoding, the new species is closely related to Mesoneura opaca (Fabricius), a widespread oak sawfly in Europe, with which it occurs in the same locality and shares a common host plant. Larvae of the new species are part of a rich assemblage of a total of 13 Symphyta species that feed on leaves of the pubescent oak Que

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32

Forsythe, H. Y., and J. A. Collins. "Sawfly Control, 1990." Insecticide and Acaricide Tests 16, no. 1 (1991): 37. http://dx.doi.org/10.1093/iat/16.1.37.

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Abstract Materials were applied on 15 Jun to 20 × 20 ft plots in a crop-year blueberry field at Township 19, Maine. There were 3 replications of each treatment in a randomized complete block design with 5-ft untreated buffer strips around each plot. Insecticides were applied at a rate of 25 gal/acre using CO2-propelled, 30-inch boom sprayer with 4 flat-spray 800067 Teejet nozzles operating at 35 psi. Plants showed 10% bloom and 90% fruit set at treatment. On sample dates indicated in table, 10 sweeps with a standard 12-inch sweep net were taken from the center of each plot; the larvae were cou

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Brueggemann, Leon, Lisa Johanna Tewes, and Caroline Müller. "Characterisation and localisation of plant metabolites involved in pharmacophagy in the turnip sawfly." PLOS ONE 18, no. 10 (2023): e0291180. http://dx.doi.org/10.1371/journal.pone.0291180.

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Several herbivorous insects consume certain metabolites from plants for other purposes than nutrition, such as defence. Adults of the turnip sawfly, Athalia rosae take up specific terpenoids, called clerodanoids, from Ajuga reptans. These metabolites are slightly modified by the sawflies and influence their mating behaviour and defence against predators. We characterised these metabolites and investigated their localisation in the insect and the specificity of the uptake and metabolite modification. Therefore, we performed feeding assays with adults and larvae of A. rosae as well as larvae of

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Soldi, Erika, Emma Fuller, Anna M. M. Tiley, Archie K. Murchie, and Trevor R. Hodkinson. "First Report of the Ash Sawfly, Tomostethus nigritus, Established on Fraxinus excelsior in the Republic of Ireland." Insects 13, no. 1 (2021): 6. http://dx.doi.org/10.3390/insects13010006.

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This is the first report of the ash sawfly, Tomostethus nigritus, in the Republic of Ireland. We observed defoliated leaves of Fraxinus excelsior L. and T. nigritus larvae at a forestry plantation in Co. Kildare. Morphological observation of the larvae and DNA analysis using mitochondrial COI barcoding confirmed the identification of this pest of ash.

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Kause, Antti, Erkki Haukioja, and Sinikka Hanhimäki. "PHENOTYPIC PLASTICITY IN FORAGING BEHAVIOR OF SAWFLY LARVAE." Ecology 80, no. 4 (1999): 1230–41. http://dx.doi.org/10.1890/0012-9658(1999)080[1230:ppifbo]2.0.co;2.

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Boevé, Jean‐Luc. "Chemoecology of larvae of the European apple sawfly." Entomologia Experimentalis et Applicata 80, no. 1 (1996): 286–88. http://dx.doi.org/10.1111/j.1570-7458.1996.tb00937.x.

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Voigt, Dagmar, and Stanislav N. Gorb. "Attachment ability of sawfly larvae to smooth surfaces." Arthropod Structure & Development 41, no. 2 (2012): 145–53. http://dx.doi.org/10.1016/j.asd.2011.10.001.

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Prieto, José M., Urs Schaffner, Alison Barker, Alessandra Braca, Tiziana Siciliano, and Jean-Luc Boevé. "Sequestration of Furostanol Saponins by Monophadnus Sawfly Larvae." Journal of Chemical Ecology 33, no. 3 (2007): 513–24. http://dx.doi.org/10.1007/s10886-006-9232-7.

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Saxon, Milam E., Micheal A. Davis, Seth G. Pritchard, et al. "Influence of elevated CO2, nitrogen, and Pinus elliottii genotypes on performance of the redheaded pine sawfly, Neodiprion lecontei." Canadian Journal of Forest Research 34, no. 5 (2004): 1007–17. http://dx.doi.org/10.1139/x03-273.

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Slash pine (Pinus elliottii Engelm. var. elliottii) seedlings were grown in open-top chambers receiving ambient or elevated atmospheric CO2 (~365 or ~720 µL·L1). Seedlings received low or high soil nitrogen treatments (0.02 or 0.2 mg N·g1) and represented three families varying in resistance to fusiform rust (Cronartium quercuum (Berk.) Miyabe ex Shirai f. sp. fusiforme (Hedgc. & N. Hunt) Burdsall & G. Snow). Following 18 months of exposure to treatment conditions, current-year needles were fed to larvae of the redheaded pine sawfly (Neodiprion lecontei (Fitch)). Needle N concentrati

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Riipi, Marianna, Antti Kause, Erkki Haukioja, Vladimir Ossipov, Svetlana Ossipova, and Kalevi Pihlaja. "Variable responses of folivorous sawflies to leaf quality of mountain birch." Canadian Journal of Forest Research 35, no. 1 (2005): 189–98. http://dx.doi.org/10.1139/x04-166.

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We studied whether the larval performance of four sawfly species feeding on mountain birch (Betula pubescens subsp. czerepanovii (Orlova) Hämet-Ahti) leaves at different times of the growing season was related to the same chemical and physical leaf traits. In the three phenologically earliest species, larval growth was related to the same set of leaf traits. In contrast, consumption of leaf material was related to different leaf traits in all of the four species. Leaf suitability for herbivore growth and tree resistance to herbivore consumption were thus not always determined by the same leaf

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Urban, Jaroslav. "Remarcable, however biologically unknown sawfly Craesus latipes (Villaret) (Hymenoptera, Tenthredinidae)." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 60, no. 3 (2012): 179–98. http://dx.doi.org/10.11118/actaun201260030179.

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In 2009 to 2011, a rather frequent occurrence of Craesus latipes (Vill.) was noted on Betula pendula Roth. in the Brno region. Part of the sawfly population showed bivoltine and part univoltine development. At the bivoltine development, imagoes occurred for the first time in the second half of May and at the beginning of June, for the second time in August. At the univoltine development, imagoes flew in the second half of June and in the first half of July. Females lay eggs into longitudinal slits in veins on the abaxial face of leaves. During several days (in the laboratory already during fir

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Zhou, Jiaying, Jiangtao Zhang, Tom Tregenza, et al. "Larval Host Preference and Suitability for the Sawfly Mesoneura rufonota among Five Cinnamomun Tree Species." Insects 11, no. 2 (2020): 76. http://dx.doi.org/10.3390/insects11020076.

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The camphor sawfly, Mesoneura rufonota Rohwer, is an economically important leaf-chewing pest of the genus Cinnamomum Trew. However, little is known about the range of species that it can infest within this genus or whether larvae show preferences for particular species. We conducted preference and performance experiments under laboratory conditions to assess larval host preference and suitability as a host plant of five congeneric trees species: C. camphora (Linn) Presl, C. bodinieri Levl., C. burmanni (Nees et T. Nees) Blume, C. pauciflorum Nees, and C. micranthum (Hay.) Hay. In no-choice, t

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Lepekhov, S. B., V. A. Petin, and M. V. Chebatareva. "Stem solidness as an important factor for wheat protection from European wheat stem sawfly (Cephus pygmaeus L.) in Altai." Proceedings on applied botany, genetics and breeding 183, no. 1 (2022): 199–207. http://dx.doi.org/10.30901/2227-8834-2022-1-199-207.

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Background. European wheat stem sawfly (Cephus pygmaeus L.) is the main pest of wheat in Altai Territory, Russia. Resistance of host plants to this insect is based on a solid stem. The effect of a solid stem on the infestation of wheat stem sawfly larvae and on agronomic traits of spring bread wheat under the conditions of Altai Territory has not been studied.Materials and methods. The study was conducted on the experimental field of the Federal Altai Scientific Centre of Agro-BioTechnologies, Barnaul, Russia, in 2019–2021. The index of stem solidness was assessed according to a 20 point scale

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González-Gaona, Ernesto, Hugo E. Borja-Nava, Karla V. De Lira-Ramos, Yahaira E. Rodríguez-Cruz, and Víctor J. Arriola-Padilla. "New species of sawfly of the genus Zadiprion Rohwer (Hymenoptera: Diprionidae) attacking Pinus cembroides (Zucc.) in Tamaulipas, Mexico." Revista Chapingo Serie Ciencias Forestales y del Ambiente 28, no. 3 (2022): 399–409. http://dx.doi.org/10.5154/r.rchscfa.2021.10.061.

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Introduction:Zadiprion Rohwer is a genus of sawflies including seven species that cause defoliations in coniferous forests. Objective: To determine the species of Zadiprion sawflies infesting Pinus cembroides (Zucc.) in Miquihuana, Tamaulipas. Materials and methods: Biological material was collected from sawfly larvae. Part of the material was preserved in 70 % alcohol for morphological description, another in 96 % anhydrous alcohol for molecular identification and another portion was placed in a Binder 720 KBW E5.1 to complete the biological cycle and obtain adults. The ovipositor of the fema

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Solomon, J. D. "Control of Sawfly Defoliators on Green Ash, 1986." Insecticide and Acaricide Tests 12, no. 1 (1987): 348. http://dx.doi.org/10.1093/iat/12.1.348a.

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Abstract Four insecticides were evaluated for efficacy in controlling sawfly defoliators of young green ash plantations at Stoneville, Mississippi. Trees were in their fourth year of growth and ranged from 2.4 to 3.4 m in height. Five infested trees were selected at random for each treatment and untreated check. Fohar applications were made using a 7.6 liter (2 gal) handsprayer calibrated at 1.4 kg pressure/cm2 (20 lb/in2) to deliver 102.9 liter finished spray per hectare (11 gal/acre). Prespray counts were made of all sawfly larvae on 2 major branches of each tree. Tethida barda was the predo

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Weinstein, P., and D. A. Maelzer. "Leadership Behaviour in Sawfly Larvae Perga dorsalis (Hymenoptera: Pergidae)." Oikos 79, no. 3 (1997): 450. http://dx.doi.org/10.2307/3546887.

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Boevé, Jean-Luc, and Sylvie Heilporn. "Secretion of the ventral glands in Craesus sawfly larvae." Biochemical Systematics and Ecology 36, no. 11 (2008): 836–41. http://dx.doi.org/10.1016/j.bse.2008.09.007.

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Parija, Saswati, and Lopamudra Biswal. "Seasonal Incidence of Insect Pests and Predatory Fauna on Toria (Brassica rapa) in West Central Tableland of Odisha, India." International Journal of Environment and Climate Change 13, no. 11 (2023): 231–40. http://dx.doi.org/10.9734/ijecc/2023/v13i113162.

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The present field investigation was conducted for two consecutive Rabi seasons of years 2021/22 and 2022/23 at the College of Horticulture, Odisha University of Agriculture and Technology, Chiplima, Odisha to record the seasonal incidence of major insect pests with the predatory fauna on toria (Brassica rapa) in relation to meteorological parameters. The occurring pest complex in both seasons constituted a total nine number of insects and three consistent predatory fauna. The highest peak population of pests recorded for 2021/22 were: mustard aphid (3.7 A.I plant-1 at 50th SMW), whitefly

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Shanower, Thomas G., and Debra K. Waters. "A Survey of Five Stem-Feeding Insect Pests of Wheat in the Northern Great Plains." Journal of Entomological Science 41, no. 1 (2006): 40–48. http://dx.doi.org/10.18474/0749-8004-41.1.40.

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The wheat stem sawfly, Cephas cinctus Norton, the wheat stem maggot, Meromyza americana Fitch, the Hessian fly, Mayetiola destructor (Say), the wheat jointworm, Tetramesa tritici (Fitch), and the wheat strawworm, Tetramesa grandis (Riley), have long been considered wheat pests in the northern Great Plains. This paper reports results of surveys for these pests conducted over 3 yrs in parts of Montana (10 counties), North Dakota (14 counties), South Dakota (1 county), Nebraska (4 counties) and Wyoming (1 county). Fields were randomly selected and a mean of 191 stems were sampled from each field.

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Boevé, Jean-Luc. "Multimodal defensive strategies in larvae of two Hemichroa sawfly species." Journal of Hymenoptera Research 46 (November 30, 2015): 25–33. https://doi.org/10.3897/JHR.46.7064.

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The two European sawfly species in the genus Hemichroa are a contrast in behaviour and appearance, since H. crocea is gregarious and brightly coloured, whereas H. australis is solitary and cryptic. Here, their defensive strategies are compared by integrating further components. In both species, ventral glands are minute, and no distinctive volatiles were detected by chemical analysis; hence, these exocrine glands are probably irrelevant in defence. Ethanol extracts of body parts were feeding deterrent to ant workers of Myrmica rubra, especially the integument of H. australis which was more det

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