title: Sublethal and Transgenerational Effects of Abamectin on the Biological Performance of the Predatory Thrips Scolothrips longicornis (Thysanoptera: Thripidae).
abstract: Determination of sublethal and transgenerational effects of pesticides on natural enemies is necessary for successful implementation of biocontrol in integrated pest management programs. In this study, these effects of abamectin on the predatory thrips Scolothrips longicornis Priesner fed on Tetranychus urticae Koch were estimated under laboratory conditions in which adult predators were exposed to pesticide residues on bean leaves. The estimated values of LC50 for female and male predators were 0.091 and 0.067 µg a.i./ml, respectively. Low-lethal concentrations (LC10, LC20 and LC30) of abamectin severely affected fecundity and longevity of treated females of S. longicornis. In addition, transgenerational effects on reproductive and life table parameters of the subsequent generation were observed. The results from this research can be used to develop guidelines for the use of abamectin to minimize the impact on S. longicornis.
authors.affiliation: Department of Entomology, Takestan Branch, Islamic Azad University, Takestan, Iran. Corresponding author, e-mail: Pakyari@tiau.ac.ir.
authors.forename: Hajar
authors.initials: H
authors.lastname: Pakyari
authors.affiliation: Aarhus University, Science and Technology, Department of Agroecology, Research Centre Flakkebjerg, DK-4200 Slagelse, Denmark, Annie.Enkegaard@agro.au.dk.
authors.forename: Annie
authors.initials: A
authors.lastname: Enkegaard
mesh_terms: D000818:Animals; D005260:Female; D007306:Insecticides / Q000633:toxicity*; D007559:Ivermectin / Q000031:analogs & derivatives* / Q000633:toxicity; D008297:Male; D010572:Pest Control, Biological; D011235:Predatory Behavior / Q000187:drug effects*; D040102:Tetranychidae; D061149:Thysanoptera / Q000187:drug effects*
chemical_list: D007306:Insecticides; C048324:abamectin; D007559:Ivermectin
keywords: biological control; fecundity; life table; nontarget effect; two-spotted spider mite