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Subrat SaurabhAuthor of Kuch Woh Pal
Cultivation of crops is actually against natural process based on ecological concept. From time immemorial human species destroyed forest and various natural ecosystem and started growing crops. Growing crops and animal husbunding is nothing but maintenance of homogeneous population. However, nature try to maintain heterogenity. Hence weeds, insect pests and plant diseases in any crop ecosystem are inevitable and unavoidable. without understanding this basic concept, scientist all over the world doing agricultural research to curtail insect pests, plant diseases and weeds. Insecticides benefit the crops; however, they also impose a serious negative impact on the environment such as biodiversity erosion, non-sustenance, biomagnification of pesticides, insect resurgence, toxicity to non-target beneficial organisms, pesticide residues related human health isssues etc. Green revolution encourages use of high yielding crop varieties for higher food production. However, high yielding varities are input responsive and perform well only when higher amount of irrigation water, fertilizers, pesticides and other agricultural inputs are applied. If a crop variety requires higher inputs, it also attracts pest and diseases. Due to misconception of Agro-ecology, the present world have contaminated the entire earth's biosphere with toxic pestcides and agricultural chemicals.
K. Devarassou
K. Devarassou, has more than 11 years of teaching experience in the field of Agricultural Entomology. He obtained M.Sc.(Ag.) degree in Agricultural Entomology, from P.J.N. College of Agriculture & Research Institute, which was affiliated to Tamil Nadu Agricultural University, Coimbatore, India. Presently he is working as a Teacher at PJN College of Agriculture. He has guided 24 graduate students for their research credits and has published two books, three book chapters, 45 technical manuals and three research article in journals of international repute. He is well known in India and abroad for his contribution towards Insect ecology with special reference to Rice crop. He was awarded Research Excellence award for his contribution towards concept on insect extinction in crop ecosystem, evolutionary ecology and development of a new technique known as "wet cloth wrapping technique" in the field of Sericulture.
