USES OF CHEMICAL PESTICIDESIN AGRICULTURAL FIELDS IN WEST BENGAL AND THEIR EFFECTS ON NON-TARGET SPECIES- A REVIEW STUDY
Author(s):
DR. HASNAHARA KHATUN, DR. ARSHAD JAMAL
Keywords:
Pesticide, toxic,chlorinated,biomagnification.
Abstract
The meaning of Pest is described in Oxford Dictionary that a troublesome or destructive organism and the suffix ‘cide’ mean “slaughter of”. From this we can define the Pesticide is a substance or mixture of substances intended for killing of a pest. By destroying the pests the Pesticide prevents some species of plants and animals that causes harm or interferes in the growth of plants/ crops. The pesticide may be biological agents or chemical substances. The chemical pesticides are very much toxic on environment after their uses in the agricultural field. However it is estimated on a global report that the worlds crops yield is reduced by 10-15% due to presence of weeds. So it is very necessary to use of pesticides for better crop yield. Using of pesticide the target species as well as non-target species including human also effected. The indiscriminate use of pesticides in agricultural fields polluted the environment including soil, water and air through pesticide residues. Through bio-accumulation or biomagnification pesticides (e.g., chlorinated) enter into the food chain and multiplying its toxicity and hampered the life cycle of too many non-target organisms. Now it should be very essential to take some steps to use over the pesticide, otherwise the living organisms will be fall in danger by this poison.
Article Details
Unique Paper ID: 153166

Publication Volume & Issue: Volume 8, Issue 6

Page(s): 64 - 69
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