Field monitor of insecticide resistance and toxicological mechanism in Plutella xylostella (L.) Influences of three host plants on the traits of experimental population of diamondback moth Plutella xylostella (Lepidoptera: Putellidae) Effects of temperature, soil humidity and soil cover on Plutella xylostella (Lepidoptera: Plutellidae) pupae emergence Analysis and molecular inheritance mechanism of resistance to insecticides in diamondback moths, Plutella xylostella Evaluation of the effectiveness of PxGV on the population dynamics of Plutella xylostella L