Management of pests and diseases of oilseed crops in India using indigenous plant products

Pests and diseases attacking oilseed crops are generally controlled by synthetic pesticides. As an effective, economical and eco-friendly alternative to these chemicals, plant products in the form of crude materials (water/solvent extract, oil, cake) and formulations (commercial pesticides) prepared from indigenous plants have been recommended for plant protection. A product may act as an antifeedant, repellent, oviposition deterrent, growth regulator or as a contact pesticide for the life stages of insects. The inhibition of spore germination and the growth of pathogens constitute an important mode of action against disease infection. Improvements in the quality of seed, production of chemical-free oil and an increase in crop productivity are possible benefits to farmers. In India, 33 plants have been exploited to extract bioactive components whose bioefficacy against pests and diseases of oilseed crops is equal to or greater than that of chemicals. Extension activities and government support for the use of botanicals in plant protection would benefit farmers and consumers, and would also encourage international trade.