Resistance to deltamethrin, lambda-cyhalothrin and chlorpyriphos-ethyl in some populations of Typhlodromus pyri Scheuten and Amblyseius andersoni (Chant) (Acari:Phytoseiidae) from vineyards in the south-west of France

Bonafos, Romain; Serrano, Éric; Auger, Philippe; Kreiter, Serge

doi:10.1016/j.cropro.2006.10.001

Cited by 48 publications

(27 citation statements)

References 15 publications

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“…They were selected because of their frequent application (1-3 times/year since 2000 (insecticide) or 2002 (fungicide)) (Barbar et al 2005;Tixier et al 2006). They are considered harmful for phytoseiids, especially T. pyri (Auger et al 2004a, b;Bonafos et al 2007) and thus presumed to act as a selection pressure on the populations living in sprayed plots. The fungicide was Acrobat1 M DG (BASF Agro SAS, France) (9% dimethomorph and 60% mancozeb, with a recommended concentration of 4.31 g ai.l À1 ) applied to vine crops to control downy mildew [Plasmopora viticola (Berkeley & Curtis) Berlese & De Toni].…”

Section: The Mitesmentioning

confidence: 99%

Assessment of pesticide susceptibility for Typhlodromus exhilaratus and Typhlodromus phialatus strains (Acari: Phytoseiidae) from vineyards in the south of France

2007

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Two species of Phytoseiidae predominated in and around vineyards in an experimental site in the south of France: Typhlodromus exhilaratus is the dominant species on grapes, whereas T. phialatus occurs in the uncultivated areas surrounding these crops. To help understand their distribution, this study aims to determine their susceptibility to a fungicide (dimethomorph + mancozeb) and an insecticide (chlorpyriphos-ethyl), which have been widely used at the experimental site for at least four years. The hypothesis tested is that the effects of these two pesticides differ between T. exhilaratus and T. phialatus. Two populations of T. exhilaratus, one collected on a vine crop where the two pesticides were applied and the other in an unsprayed orchard of Sorbus domestica, and one population of T. phialatus collected on Viburnum tinus from uncultivated areas adjacent to the vine crop, were tested under laboratory conditions. The fungicide seems to affect the females of T. phialatus more than those of T. exhilaratus from vine. However, at the recommended field concentration the female mortality rates of the three strains were low and female fecundities were not significantly different. Conversely, mortality rates were very high for the three strains at the recommended field concentration of chlorpyrifos-ethyl. The strain of T. exhilaratus from vine seems to be more tolerant and 20% of females survived the recommended field rate. This suggests better survival after insecticide application than females of T. phialatus (100% mortality at a lower concentration than the recommended rate). As extrapolation of laboratory results to the field is often irrelevant, these differences could be just one of several factors affecting the spatial segregation of the two species in the agrosystem considered. Possible explanations other than pesticides for the poor settlement of T. phialatus in vine plots are discussed.

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Section: The Mitesmentioning

confidence: 99%

Assessment of pesticide susceptibility for Typhlodromus exhilaratus and Typhlodromus phialatus strains (Acari: Phytoseiidae) from vineyards in the south of France

2007

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“…Chlorpyriphos is popular in viticulture, where it is employed to control lepidopterans and homopterans. Resistance to OPs has been reported for a number of predatory mites found in perennial crops in Europe and elsewhere (e.g., Overmeer and van Zon 1983;Hadam et al 1986;Croft 1990;Dunley et al 1991;Bonafos et al 2007).…”

Section: Introductionmentioning

confidence: 97%

Resistance to chlorpyriphos in the predatory mite Kampimodromus aberrans

2011

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The predatory mite Kampimodromus aberrans (Oudemans) is a key biocontrol agent in vineyards in Italy and Southern Europe. Its susceptibility to common pesticides (e.g., organophosphates) has been considered an important factor in preventing successful biocontrol of phytophagous mites. Nevertheless, populations of K. aberrans apparently resistant to organophosphates (OPs) have been reported to occur in Northern Italian vineyards. The resistance of K. aberrans to fungicides (e.g., mancozeb) has been demonstrated in the laboratory in France, but little is known about the toxicity of insecticides towards K. aberrans. Of these pesticides, the OP chlorpyriphos is extensively used in viticulture to control lepidopterans and homopterans. The present study investigated the dose-response effect of chlorpyriphos in four K. aberrans strains characterized by different levels of exposure to OP insecticides in the past: from never to frequently exposed. Resistance to chlorpyriphos is demonstrated for populations collected from vineyards and apple orchards. Resistance factors exceeded 145,000× for the three strains collected in vineyards and orchard. LC(50) values for resistant strains were 1.85-6.83 times higher than the recommended field dose of chlorpyriphos for vineyards and orchards (525 mg a.i./l).

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“…Several studies have shown its ability to control mite pests and to resist somewhat to pesticide applications (i.e. Genini et al 1991;Bonafos et al 2007). Roda et al (2003) showed that apple leaf pubescence could affect the densities of T. (T.) pyri because of pollen and fungi spore retention.…”

Section: Euseius Finlandicus Has Been Observed In Onlymentioning

confidence: 99%

Phytoseiid mite diversity (Acari: Mesostigmata) and assessment of their spatial distribution in French apple orchards

Tixier¹,

Lopes²,

Blanc³

et al. 2014

Acarologia

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Resistance to deltamethrin, lambda-cyhalothrin and chlorpyriphos-ethyl in some populations of Typhlodromus pyri Scheuten and Amblyseius andersoni (Chant) (Acari:Phytoseiidae) from vineyards in the south-west of France

Cited by 48 publications

References 15 publications

Assessment of pesticide susceptibility for Typhlodromus exhilaratus and Typhlodromus phialatus strains (Acari: Phytoseiidae) from vineyards in the south of France

Assessment of pesticide susceptibility for Typhlodromus exhilaratus and Typhlodromus phialatus strains (Acari: Phytoseiidae) from vineyards in the south of France

Resistance to chlorpyriphos in the predatory mite Kampimodromus aberrans

Phytoseiid mite diversity (Acari: Mesostigmata) and assessment of their spatial distribution in French apple orchards

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