Biological Characteristics of Certain Diamondback Moth Ecotypes

摘要

Studies on Diamondback moth (DBM), Plutella xylostella (L.) population gathered from eight different locations in India revealed significant variations existing among them. The tenure of life cycle of all the eight ecotypes varied from each other ranging from 20.1?±1.3 to 20.9?±1.01 days, longevity of adult males and females also differed. The other biological traits like egg hatchability (Varying from 83.2?±7.96-91.2?±4.68) and fecundity of female (Between 268.5?±10.59-305.11?±12.11) differed among the DBM population.