Potential of botanicals for the management of forest insect pests of Madhya Pradesh, India an overview
R. N. Parel, Deepika Patel, Rita Bhandari, Uday Homkar, A. K. Gill
This paper reviews the botanicals evaluated against forest insect pests of India and presents the impact of neem and other plant products against major forest insect pests. Various neem products were found effective in field condition against many forest insect pests like the rohida defoliator, Patialus tecomella, the babul defoliator, Taragama siva, the desert locust Schistocerca gregaria, the babul whitefly Acauldaleyrodes rachipora, the spiralling whitefly, Aleurodicus dispersus and the teak defoliators Hyblaea puera and Paliga machaeralis etc. Neem oil and neem oil based formulations were used to contain the populations build up of A. dispersus on roadside plantations of Bauhinia. variegata and Michelia champaca. Neem cake, pongam cake and VAM were commonly applied in combination for the management of sucking pests on seedlings. Other than neem about 58 plant species were reported to have pest management properties on forest insect pests. In these plants, mostly crude extracts were reported to have different type of pest management properties in laboratory condition against defoliating pests. Not much work has been carried out on other group of insects like sap suckers, wood borers, gall inducers etc. Extractives of different parts of Capparis decidua were found to possess aphidicidal principles against three species of aphids viz., Aphis gossypii, Lipaphis erysimi and Mysus persicae. Plant products other than neem were not practically used much for pest control. It is recommended to have national, regional and international coordinated effort to exploit botanicals that are more potent as an integral component of pest management in different cropping systems including forestry.