Natural Pesticide and Insecticides:
As science advance, development of synthetic pesticides and insecticides is occurred. These products have number of harmful side effects and kills harmless and beneficial insect also. Due to this, more emphasis is being given to natural alternatives of these synthetic pesticides that are safe and effective. These natural products have been ignored from long time and exhibit insecticidal / insect repellent effects. Some of them are Neem (Azadirachta indica), Pyrethrum ( Chrysanthemum), Derris, Cinerariaefolium, Acorus Calamus, Anethum, Nigella sativa, Cyperus rotandus etc. Few are explaining below: Pyrethrum: The insecticidal principles of pyrethrum are located in the oleoresin secretion of floral parts of partially open and closed flowers. Pyrethrin I and Pyrethrin II are two main active constituents of pyrethrum. It also contains other active constituents such as cinerin I, cinerin II, Jasmoline I and Jasmoline II. All these constituents are chemically esters. ...