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).
Many natural substances can be used as pesticides, such as extracts of pyrethrum, garlic, tea-tree oil and eucalyptus oil. When these natural chemicals are used as pesticides they become subject to the same controls as pesticides produced synthetically.