Author(s): Gowri G and Manimegalai K

Abstract: Diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), is cosmopolitan in its geographical distribution, occurring in all major zoogeographical regions of the World wherever crucifer crops are cultivated. Plutella xylostella is commonly known as diamondback moth, is a serious pest of crucifers throughout temperate and tropical climates. It is an important pest and the larvae feeds on the foliage of the cruciferous plants from the seedling stage. The biology of P. xylostella was studied to elicit information on first, second, third and fourth instars, pupa and adult emergence.