Attraction of Tetranychus urticae to garlic treated with chlorfenapyr to control dry bulb mite, Aceria tulipae

Chlorfenapyr is a potent pesticide that showed its effect against several mites that infested many crops. There are two recommended compounds under commercial names Selpa and Brometa with 36% a.i, to control the eriophyid garlic mite, Aceria tulipae at  55ml/100 L water. Initial kill values of Selpa (Chlorfenapyr1) were 64.42 and 66.55% in 2021 and 2022, resp., and for Brometa (Chlorfenapyr2)  64.00 and 62.48% for the same arrangement. Both compounds were compared with Quick (Abamectin1.3%+Bifenthrin8.8%), which its initial kill percentages recorded 61.95 and 65.34% for 2021 and 2022, resp. In the same trend, the latent effect of both chlorfenapyr compounds recorded higher percentages in comparison with Quick with 91.92 and 91.95 % for Selpa ( Chlorfenapyr1), 91.1 and 90.96 % for Brometa (Chlorfenapyr2), and 88.90 and 88.88% for Quick in 2021 and 2022, resp., versus A. tulipae. Further, the general reduction showed an increase than Quick with 3.5 and 4.2 % for Selpa ( Chlorfenapyr1) and with 2.7 and 3.2% for Brometa in 2021 and 2022, resp., against A. tulipae. Inconsistently, the peculiar phenomenon caused by chlorfenapyr in the two seasons of the study was the increase of Tetranychus urticae infestation in garlic treated with Chlorfenapyr compared even by Quick (Abamectin1.3%+Bifenthrin8.8%),  or control also. The general infeststion increase percentages of Selpa ( Chlorfenapyr1) and Brometa (Chlorfenapyr2) were 33.71 and 31.51% in 2021, resp. Likewise, the general increase percentages of chlorfenapyr1 and chlorfenapyr2 were 31.81 and 30.31 % in 2022, resp. Results were explained by the difference in decreased activity of antioxidant enzymes levels between  Aceria tulipae and Tetranychus urticae.