Sublethal effects of chlorfenapyr on Plutella xylostella (Lepidoptera: Plutellidae).

Background: The diamondback moth (DBM), Plutella xylostella (L.), is the most destructive pest of cruciferous vegetables worldwide. Chlorfenapyr is an important insecticide for controlling DBM.

Inheritance, fitness cost and mechanism of resistance to tebufenozide in Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae).

Background: Tebufenozide has been used as a key insecticide for controlling beet armyworm, Spodoptera exigua (Hübner). To evaluate the risk of resistance evolution and to develop a better resistance management strategy, a field-collected population was selected with tebufenozide in the laboratory. Thereafter, the inheritance and fitness cost of tebufenozide resistance in S.