Chapter 5 :-Pest Control

Pest:- A pest is any living organism which competes with human,domestic animals or desirable plants for food or water. At the same time they spread diseases to mankind and harms the environment. Classification :- I. Wingless :- Fleas, Lice, bedbugs, silverfish, beetles II. Winged :- Mosquito, house flies, cockroach Types of pests:- 1.)Fleas :- These are wingless insects 2-3 mm long with laterally flattened, hard thoraxes and abdomen, and three pairs of legs. Fleas bite their host causing annoyance; and in case of humans, large red itching spot appears on the skin. Spraying with insecticide is a suitable way of eradicating them. 2.)Lice :- They are small wingless ectoparasites with hard chitinous covering and having three pairs of legs, each provided with a single claw. They live entirely on mammalian blood. They have oval grayish bodies that become brownish when filled with blood. There is no disease tha...