Key Mortality Factors of Spodoptera litura (Fabricius) and Trichoplusia ni (Hubner) Infesting Cabbage

Abstract

Spodoptera litura (Fabricius) passed through one generation each during rainy and winter seasons on cabbage, while Trichoplusia ni (Hubner) completed two generations only during rainy season, at College of Agriculture, Latur. Apanteles sp., green muscardine fungus and an unidentified tachinid fly were the major mortality factors of S. litura and T. ni infesting cabbage during rainy season and Campoletis chlorideae during winter season. In addition to the above, unidentified parasitoids, white muscardine fungus and NPV were also identified as key mortality factors of T. ni .