The diamondback moth (DBM), Plutella xylostella (L), has been recorded in Malaysia since 1925. From 1941, it has been the major pest of crucifers grown in the Cameron Highlands and in the lowlands. The insect occurs in high numbers in the drier periods of the year and control has been mainly with the use of insecticides. The indiscriminate use of insecticides on DBM has led to the development o...
