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Dissertations / Theses on the topic 'Pestides'

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1

Devilliers, Esther. "Modélisation micro-économétrique des choix de pratiques de production et des utilisations d'intrants chimiques des agriculteurs : une approche par les fonctions de production latentes." Thesis, Rennes, Agrocampus Ouest, 2021. http://www.theses.fr/2021NSARE058.

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La notion d’itinéraire technique est une notion agronomique qui nous permet d’appréhender l’imbrication entre les rendements objectifs et les niveaux d’utilisation d’intrants associés. Dès lors, on peut admettre qu’à différents types d’itinéraires techniques correspondent différentes fonctions de production. Modéliser ces différentes fonctions est une des clés pour mieux comprendre la dépendance de certaines pratiques culturales aux pesticides et de ce fait constitue un enjeu majeur pour concevoir les futures politiques publiques.Intégrer cette notion d’itinéraire technique nécessite de tenir
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2

Woida, Angela E. "Pesticides." Thesis, The University of Arizona, 1995. http://hdl.handle.net/10150/292163.

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3

Lam, Ding. "An overview of pesticide consumption and management in Hong Kong /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22264401.

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4

Pieters, Barry Johan. "Daphnid population responses to pesticides." [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2007. http://dare.uva.nl/document/45997.

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5

Rolland, Olivier. "Toxicologie des pesticides systémiques organophosphorés." Paris 5, 1988. http://www.theses.fr/1988PA05P034.

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6

Kunte, (Lagwankar) S. S. "Studies in analysis of pesticides." Thesis(M.Sc.), CSIR-National Chemical Laboratory, Pune, 1986. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2206.

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7

Solís, Sánchez Cristina. "Geography of pesticide exposure in the Lower Valley (El Paso County, Texas)." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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8

Smith, Edward James. "The fate of pesticides on plants." Thesis, University of York, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488746.

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9

Khor, Jen Nee. "Oxidation of pesticides in photocatalytic reactors." Thesis, University of Nottingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403398.

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10

Kah, Mélanie. "Behaviour of ionisable pesticides in soils." Thesis, University of York, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440684.

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11

Quivet, Étienne. "Analyse du comportement environnemental de pesticides." Lyon 1, 2004. http://www.theses.fr/2004LYO10278.

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La photodégradation de l'imazapyr et de l'imazamox, deux herbicides de la famille des imidazolinones, a été étudiée en solution aqueuse sous rayonnement UV. Les résultats obtenus ont permis de proposer des schémas de dégradation de ces herbicides. Les cinétiques de dégradation des pesticides d'une part, d'apparition et de disparition des principaux photoproduits d'autre part, ont été suivies par chromatographie liquide couplée à un détecteur à barrettes de diodes (LC-DAD). Après une étape de pré-concentration sur phase solide (SPE), la caractérisation des photoproduits a été réalisée par chrom
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12

Papa, Kassim. "Variabilité de l'effet mitochondrial des pesticides." Aix-Marseille 2, 2007. http://www.theses.fr/2007AIX20662.

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13

Lohner, Timothy W. "Effects of pH, temperature, and sediment on the aquatic fate and toxicity of selected pesticides /." The Ohio State University, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487332636474975.

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14

Zheng, Shan-qiang. "Comportement de divers pesticides dans les sols. Application en milieux tropical et méditerranéen." Montpellier 1, 1994. http://www.theses.fr/1994MON13504.

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15

Bouya, Houceine. "Dégradation par voie électrochimique de nitro-benzaldehyde et cyperméthrine et étude cinétique d’oxydation atmosphérique du bupirimate et nitrobenzaldehyde." Thesis, Reims, 2015. http://www.theses.fr/2015REIMS018/document.

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Cette thèse porte sur l’étude des composés organiques semi-volatils, notamment les pesticides et les composés nitro-aromatiques dans les deux compartiments l’eau et l’atmosphère. La première partie de ce travail concerne l'optimisation des différents paramètres expérimentaux (concentration initiale des composés, concentration de l’électrolyte support, température et la densité de courant imposé) de la dégradation de la cypermethrine et du 2-Nitrobenzaldehyde (2-NBA) par oxydation direct moyennant les électrodes de l'oxyde d'étain (SnO2) et le diamant dopé au bore (DDB). Cette dégradation a été
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16

Cravey, Suzanne Perritt. "Are pesticides a factor in bird declines? /." Connect to this title online, 2005. http://www.orwapif.org/pdf/pesticides%5Fbirds.pdf.

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17

Fragoeiro, Silvia. "Use of fungi in bioremediation of pesticides." Thesis, Cranfield University, 2005. http://hdl.handle.net/1826/906.

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Eight isolates (7 species) of white rot fungi were grown on soil extract agar amended with 0, 5 10 and 20 mg l- simazine, trifluralin and dieldrin, individually and as a mixture, under two different water regimes (-0.7 and -2.8 MPa water potential). The best isolates were T.versicolor (R26 and R101) and P.ostreatus, exhibiting good tolerance to the pesticides and water stress and the ability to degrade lignin and produce laccase in the presence of these pesticides. As a result, the activity of those three isolates plus Phanerochaete chrysosporium (well described for its bioremediation potenti
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18

Termtanun, Mutsee. "Photocatalytic degradation of pesticides using TiO2 nanoparticles." Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/13827/.

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The problem of water pollution has been an environmental concern for many years. Numerous researchers are looking for an effective method to solve this issue. Heterogeneous photocatalysis, using a semiconductor as a catalyst, is a promising method for the destruction of water polluting pesticides. This method has been called the Advanced Oxidation Process (AOP) which is one of the techniques for water treatment. Titanium dioxide (TiO2) is the most widely accepted photocatalyst because it is non-toxic, stable to photocorrosion, low cost and can potentially work using sunlight rather than artifi
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19

Odon, Akanimo P. "Effect of Pesticides on Non -Target Species." Thesis, Lancaster University, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531707.

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20

Robinson, Roger Kevin. "Computational study of carbamate and organophosphate pesticides." Thesis, University of Reading, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433451.

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21

Fitzpatrick, Lisa Jane. "Extraction and photolysis of pesticides on soil." Thesis, Northumbria University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325378.

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22

Bhandal, Narotam Singh. "Arthropod chloride channels as targets for pesticides." Thesis, University of Nottingham, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335651.

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23

Mackay, Neil. "Modelling the fate of pesticides in soil." Thesis, University of York, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304103.

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24

Fogg, Paul. "Fate and behaviour of pesticides in biobeds." Thesis, Cranfield University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405625.

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25

Наземцева, Ярослава Олександрівна, Ярослава Александровна Наземцева, and Yaroslava Oleksandrivna Nazemtseva. "Human and environmental risks of obsolete pesticides." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/33529.

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Pesticides have been used worldwide in agriculture to fight pests, to increase output, and control tropical diseases. But when pesticides can no longer be used for their intended purpose (for instance, due to deterioration or age) they become obsolete. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/33529
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26

Aguilar, Carolina. "Pesticides and pesticide combinations on brain neurochemistry." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/34697.

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<p>Pesticides have been suggested to play a role in the development of many neurodegerative diseases including Parkinson's disease and Alzheimer's disease. Additionally, it has been suggested that exposure to pesticides and other environmental chemicals during the early stages of life could result in an increased vulnerability to such substances that could lead to neurotoxicity and degeneration late in life. We hypothesized that exposure to mixtures of certain pesticides could change neurotransmitter levels and cellular oxidative stress and that this would be greater in mice exposed early and
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27

Brimecombe, Rory Dennis. "Voltammetric analysis of pesticides and their degradation." Thesis, Rhodes University, 2006. http://hdl.handle.net/10962/d1015724.

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Amitraz is a formamide acaricide used predominantly in the control of ectoparasites in livestock and honeybees. Amitraz hydrolysis is rapid and occurs under acidic conditions, exposure to sunlight and biodegradation by microorganisms. The main hydrolysis product of amitraz, 2,4-dimethylaniline, is recalcitrant in the environment and toxic to humans. An electrochemical method for the determination of total amitraz residues and its final breakdown product, 2,4-dimethylaniline, in spent cattle dip, is presented. Cyclic voltammetry at a glassy carbon electrode showed the irreversible oxidation of
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28

Zhu, Danyun. "Determination of Residential-Use Turf Pesticides in Surface and Ground Water by HPLC/DAD." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/ZhuD2003.pdf.

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29

Schmitt, Philippe. "Potentiels de l'électrophorèse capillaire dans l'analyse des pesticides et des substances humiques : application à l'étude des interactions pesticides - substances humiques." Vandoeuvre-les-Nancy, INPL, 1996. http://www.theses.fr/1996INPL117N.

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Différentes méthodes électrophorétiques ont été développées pour l'analyse de pesticides et de substances humiques. En électrophorèse capillaire de zone (CZE), des herbicides cationiques (s-triazines) et/ou anioniques (acides phénoxyacétiques) peuvent être séparés aisément avec une limite de détection de l'ordre de 10 g/l. La CZE est également efficace dans l'analyse du comportement électrophorétique de mélanges complexes de polyélectrolytes anioniques tels que les substances humiques. Un exemple d'application de la CZE est donné dans l'analyse des métabolites hydroxyles de l'atrazine lors de
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30

GASSMANN, THURIET EVELYNE. "Contribution a l'etude des pesticides : presentation et mise en oeuvre de divers tests en vue de l'homologation de nouveaux pesticides." Strasbourg 1, 1989. http://www.theses.fr/1989STR15015.

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31

Pinkham, Wade A. "A Lateral Field Excited Acoustic Wave Pesticide Sensor." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/PinkhamWA2007.pdf.

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32

Miranda, Jamilette. "Neurotoxicity after poisonings with organophosphate pesticides in Nicaragua /." Stockholm : Arbetslivsinstitutet, 2003. http://diss.kib.ki.se/2003/91-7045-668-2/.

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33

Mazlan, Norida. "Pesticides and food safety for Malaysian fresh vegetables." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435436.

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34

Nisar, Rizwan. "Common pesticides and the development of Parkinson's disease." Thesis, University of Newcastle Upon Tyne, 2011. http://hdl.handle.net/10443/1079.

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Parkinson’s disease (PD) is an age-related neurodegenerative disorder, characterised by progressive degeneration of dopaminergic neurons in the substantia nigra, with the formation of α-synuclein rich, intracytoplasmic Lewy bodies. Several genetic and environmental factors, including pesticides are linked with sporadic PD. The aim of this study was to investigate the effect of selected pesticides on dopaminergic neuroblastoma SH-SY5Y cells and differentiated human neural precursor cells. Several parameters of toxicity were successfully measured including cell-viability in SH-SY5Y cells and est
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35

Fenlon, Katie Alexandra. "Fate, Behaviour and Bioavailability of Pesticides in Soils." Thesis, Lancaster University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.504165.

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36

McCracken, Nigel William. "Role of esterases in the detoxification of pesticides." Thesis, University of Newcastle Upon Tyne, 1991. http://hdl.handle.net/10443/550.

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Occupational exposure of pesticides occurs via inhalation through the lungs or by absorption through the skin. The assessment of the possible importance of these extrahepatic tissues in the hydrolysis of pesticides is important. Although the liver has been shown to be the most metabolically active tissue, both the skin and lung have the ability to metabolise pesticides. Therefore, the possibility exists that pesticides which are absorbed through the lung and skin may undergo first pass metabolism in these tissues. In the study, the esterase enzymes responsible for the hydrolysis and subsequent
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37

Orton, Frances. "Investigation into the effects of pesticides on amphibians." Thesis, Brunel University, 2008. http://bura.brunel.ac.uk/handle/2438/2456.

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Amphibian population decline is a recognised phenomenon spanning at least the last 40 years, and it is likely that a number of factors have contributed, including environmental contamination. Amphibians are vulnerable to agrochemical uptake as they must breed in water, and often spend the aquatic phase of their lifecycle in agricultural water bodies, which may contain a complex mixture of biologically active chemicals. Endocrine disrupting compounds may cause reproductive effects in humans and wildlife, although the link between pesticides and endocrine disruption is largely unknown. Therefore
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38

Cagnini, Andrea. "A disposable biosensor for organophosphorus and carbamic pesticides." Thesis, Cranfield University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339885.

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39

Lord, Simon. "The interactions of pesticides with free-living protozoa." Thesis, University of Bath, 1986. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760558.

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40

Wong, Hie Ling. "Assessment of non-dietary, human exposure to pesticides." Thesis, University of York, 2018. http://etheses.whiterose.ac.uk/21539/.

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Assessment of non-dietary, human exposure to pesticides is an integral part of pesticide authorisation at the EU level. In this thesis, models were used to predict exposure of vulnerable human sub-populations to pesticides and thus to assess risks to health. Two high-quality pesticide usage datasets previously collected by Fera Science Ltd. and for EFSA were analysed. Trends in pesticide usage and major drivers of exposure and thus risk were identified, including any implications for regulatory procedures over the period investigated. Residential exposure of pregnant women living at 100 and 10
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41

Buffin, David Gareth. "UK pesticides policy - a policy paradigm in transition?" Thesis, City University London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.511776.

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42

Blackwell, Alison. "The behavioural effects of formamidine pesticides in Lepidoptera." Thesis, University of Bristol, 1987. http://hdl.handle.net/1983/d31fbc39-5dd8-4285-abd5-75dd8f2e99b2.

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43

Falconer, Katherine. "Environmental policy and the use of agricultural pesticides." Thesis, University of Cambridge, 1997. https://www.repository.cam.ac.uk/handle/1810/271974.

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44

Burdge, Ryan Brennan. "Songbirds, Pesticides, and Golf Courses: Exposure and Effects." W&M ScholarWorks, 2009. https://scholarworks.wm.edu/etd/1539626888.

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45

Vian, Laurence. "Etude de l'exposition aux pesticides dans les serres." Montpellier 1, 1985. http://www.theses.fr/1985MON13510.

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46

Zheng, Guanyu. "Bioremediation of organochlorine pesticides contaminated soil with microemulsions." HKBU Institutional Repository, 2011. http://repository.hkbu.edu.hk/etd_ra/1245.

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47

Özer, Serdar Sofuoğlu Aysun. "Measurement Of Henry's Law Constant Of Organochlorinated Pesticides/." [s.l.]: [s.n.], 2005. http://library.iyte.edu.tr/tezler/master/kimyamuh/T000344.pdf.

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Thesis (Master)--İzmir Institute of Technology, İzmir, 2005.<br>Keywords: Organic pollutants, thermodynamic properties, Henry's law constant, Organochlorinated pesticides. Includes bibliographical references (leaves. (leaves. 49-53).
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48

Suddaby, Laura. "Investigation into irreversible sorption of pesticides to soil." Thesis, University of York, 2012. http://etheses.whiterose.ac.uk/2725/.

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The importance of extremely slow retention and release has superseded the notion that sorption of pesticides to soil is an instantaneous and reversible process. A fraction of sorbed pesticide is also often reported to bind irreversibly to the soil matrix. This has important implications for pesticide mobility and bioavailability. It is essential to understand sorption phenomena to allow accurate prediction of pesticide fate within the soil environment. This thesis describes the result of applying a sequential extraction procedure, based on the principles of isotope or “self-exchange”, to nine
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49

NTALLI, NIKOLETTA. "Phytochemistry in the development of pesticides and biocides." Doctoral thesis, Università degli Studi di Cagliari, 2016. http://hdl.handle.net/11584/266867.

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To date biopesticides and biocides are studied as substitutes for their toxic synthetic ancestors. The botanical pesticides are evaluated as tools intended for integrated crop protection schemes, while the natural biocides for their potential use in residential areas. In this study we evaluate various botanical matrixes for the nematicidal properties against the root knot nematode Meloidogyne spp., in the form of pastes and extracts for soil amendment as well as plant secondary metabolites isolated from the afore mentioned matrixes and used individually or in binary mixtures to create synergis
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50

Ahmad, Shakeel. "The impact of pesticides on apple mite communities." Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3422565.

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Laboratory, field and semi-field experiments have been carried out on the predatory mites Kampimodromus aberrans, Amblyseius andersoni, Typhlodromus pyri and Phytoseius finitimus in order to optimize biological control strategies against phytophagous mites in apple orchards. The first experiment concerned the augmentative releases of K. aberrans in organic and conventional apple orchards. The most frequent insecticides used in organic orchards were pyrethrins and spinosad, whereas neonicotinoids, OPs and IGRs were used in conventional orchards. K. aberrans releases were successful and predator
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