Evaluation of Some Bio-products Against Mustard Aphid, Lipaphis erysimi (Kalt.)

摘要

Mustard aphid, L. erysimi is the key pest of rapeseed-mustard crop in India and widely distributed throughout the world on Brassica crops. In India, the pest was reported to cause yield loss ranging from 65 to 96% (Bakhetia, 1984) and 15% oil reduction (Verma and Singh, 1987). In the past, number of insecticides were evaluated with some effective in the management of mustard aphid (Singh et al., 2007; Singh and Singh, 2009). These insecticides have been found more or less toxic to a number of parasitoids and predators i.e. Diaeretiella rapae, Chrysoperla carnea, coccinellids and Syrphis spp. occurs in mustard crop as natural enemies of aphid (Singh et al., 2007). Pesticides are also responsible for environmental pollution, health hazards to human beings, toxic to pollinators, pest resurgence, development of resistance in insect-pests and residue in oil and cake. Keeping the above facts in view in the present investigation was undertaken to evaluate some eco-friendly bio-products were evalutated against mustard aphid.