17 Aug विभिन्न प्रकार के जैविक कीटनाशक तथा कीट नियंत्रण में उनका महत्व
Different types of organic pesticides and their importance in pest control agrochemicals are being used by the farmers for the purpose of reducing the outbreak of pests, diseases and weeds etc. on the crops. Use of these chemicals create disease tolerance and the natural enemies of insects are affected. The residues of pesticides pollutes agriculture produce , soil, water and air. To avoid the harmful effects of pesticide and for organic farming, it is absolutely necessary to use organic pesticides. Different types of organic pesticides and their importance in pest control देश में फसलों को कीटों, रोगों एवं खरपतवारों आदि से प्रतिवर्ष 7 से 25 प्रतिशत तक क्षति होती है। फसलों पर कीटों,...