Abstract:

Chemical control is primarily used in the management of tetranychid species agricultural areas.Predatory mite populations that feed on these pests are also affected by the pesticides. In this study, it was aimed to determine the relationships between resistance, acetylcholinesterase (AChE) enzyme and mutations as a result of pirimicarb selection pressure on Phytoseiulus persimilisAthias-Henriot (Acari: Phytoseiidae) under laboratory conditions. The study was carried out using the spray tower with the leaf disc method. As a result of seven selections, pirimicarb resistance increased up to 45.5-fold. No effect of IBP and TPP synergists on pirimicarb weredetermined. The target site mutations (F331W and G119S) examined in the initial and pirimicarb resistant P. persimilis populations were also not determined, but it is thought that it would be useful to examine different target site mutations in future studies. The study, is the first to investigate pirimicarb resistance and AChE point mutations in P. persimilis.

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