Pest example sentences

Midway through the season the crop is hit by pests and the crop fails.It was also observed that the multi-purpose projects induced earthquakes, caused waterborne diseases and pests and pollution resulting from excessive use of water.Some other preventive measures against pests are the use of resistant varieties, and summer ploughing, in which fields are ploughed deep in summers to destroy weeds and pests.Union Carbide (UC) an American company had a factory in the city in which it produced pesticides.These large MNCs with worldwide network look for the cheapest goods in order to maximise their profits.Factors which lead to soil degradation are deforestation, overgrazing, overuse of chemical feritilisers or pesticides, rain wash, landslides and floods.This prevents the attack by insect pests, bacteria and fungi.Fertilisers, pesticides and insecticides, which once showed dramatic results, are now being held responsible for degrading the soils.Industrial wastes and excessive use of pesticides, result into pollution of land mass and water bodies.Pesticides and other pollutants such as hydrocarbons and toxic heavy metals destroy the weak and sensitive species.For example, the farmer may be using fertilisers or pesticides to produce wheat.Infact organic farming is much in vogue today because it is practised without factory made chemicals such as fertilisers and pesticides.However, these insecticides, pesticides and herbicides cause soil pollution.Have you ever seen the damages caused to the crops, food items by insects, rodents, weeds and crop diseases etc? How can we protect them? You are acquainted with some insecticides and pesticides for protection of our crops.However, large scale storage of grains is done in silos and granaries to protect them from pests like rats and insects [Figureure 10 (a) and (b)].