For instance, the term âFRPâ (for Fiber Reinforced Plastic) usually indicates a thermosetting polyester matrix containing glass fibers1, and this particular composite has the lion's share of today's commercial market.
Pesticides are chemicals used to eliminate or control a variety of agricultural pests that can damage crops and livestock and reduce farm productivity. The most commonly applied pesticides are insecticides (to kill insects), herbicides (to kill weeds), rodenticides (to kill rodents), and fungicides (to control fungi, mold, and mildew).
The toxicity of an insecticidal preparation may be greatly altered by the agents used as emulsifiers and solvents. Called also pesticide. insecticide resistance. insects exposed to one insecticide for long periods may develop a resistance to it and suffer no ill-effects when it is applied.