2002•Journal of Biological ControlRequires access

Role of Natural Enemies in the Management of Lipaphis erysimi (Kalt.) on Brassica juncea Var. Rugosa (Linn.)

L. Chitra Devi, T. K. Singh, R. Varatharajan

Abstract

The role of natural enemies on the population of Lipaphis erysimi (Kalt.) infesting B. juncea var. rugosa (Linn.) has been studied in three consecutive crop seasons (1993-96). The study revealed the occurrence of about a dozen natural enemies belonging to four groups viz ., syrphids, coccinellids, hemerobiid and aphidiid. Among these, syrphids were found to be dominant over the others in terms of density, species composition and prey consumption potential.

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Key concepts: Lipaphis erysimi, Biology, Brassica, Rugosa, Predation, Natural enemies, Toxicology, Aphid