Sublethal effects of spiromesifen on life table traits of Tetranychus urticae (Acari: Tetranychidae) and Neoseiulus californicus (Acari: Phytoseiidae)

The assessment of long-term negative effects insecticides on the target and non-target insects can help assess toxicity side-effects pesticides. In this study, sublethal a low concentration spiromesifen (LC<sub>20</sub>) life-history traits T. urticae its phytoseiid predator N. californicus were estimated for two successive generations (F0 F1). According to results, adult longevity, oviposition days, fecundity, life table parameters (r<sub>m</sub>, R<sub>0</sub>, T) exhibited significant impacts at LC<sub>20</sub> compared control. Meanwhile, found most (longevity, days) californicus. Also, had population except net reproductive rate (R<sub>0</sub>) in On other hand, consumption (finite predation (ω), stable (ψ), (C<sub>0</sub>)) impacts. Therefore, results suggested that effectively controls generation urticae. compound adversely affected califonicus, so it is inappropriate IPM applications presence parasitoid.