Pesticides

The term pesticide covers a wide range of compounds including insecticides, fungicides, herbicides, rodenticides, molluscicides, nematicides, plant suppuration regulators and others. Among these, organ chlorine (OC) insecticides, used success all-embracingy in controlling a number of diseases, such as malaria and typhus, were banned or restricted after the 1960s in most of the technologically advanced countries. The introduction of other synthetic insecticides organophosphate (OP) insecticides in the 1960s, carbonates in seventies and pyrethroids in 1980s and the introduction of herbicides and fungicides in the mid-seventies1980s contributed greatly to pest control and agricultural output. ideally a pesticide must be lethal to the targeted pests, but non to non-target species, including man. Unfortunately, this is not the case, so the controversy of use and abuse of pesticides has surfaced. The straighten use of these chemicals, under the adage, if little is good, a lot mor e than will be better has played havoc with tender-hearted and other life forms. The pattern of pesticide usage in India is out or keeping(p) from that for the world in general. In India 76% of the pesticide used is insecticide, as against 44% globally (Mathur, 1999). The use of herbicides and fungicides is correspondingly slight heavy.

The master(prenominal) use of pesticides in India is for cotton crops (45%), followed by paddy and wheat. The superannuated wellbeings are the consequences of the pesticides piths the direct gains expected from their use. For example the effect of sidesplitting cat erpillars feeding on the crop brings the fi! rst benefit of high yields and better quality of cabbage. The three main personal cause result in 26 primary benefits ranging from protection of volunteer(a) superoxide dismutase to saved human lives. The junior-grade benefits are the less speedy or less obvious benefits that result from the primary benefits. They whitethorn be subtle, less intuitively obvious, or of long-lasting term. It follows that for secondary benefits it is therefore more...If you want to get a full essay, secernate it on our website: BestEssayCheap.com

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