Explain the various preventive measure against insect pests
Answers
Answer:
spray pesticides
select pest resistant varieties of crop
crop rotation
carry out pre treatment of the seeds prior to sowing
use biological pest controlling agents
Answer:
1. Biological pest control: Biological pest control is the control of insect pests with other organisms. For example mosquitoes are often controlled by putting Bt Bacillus thuringiensis ssp. israelensis, a bacterium that infects and kills mosquito larvae, in local water sources.
2. Pesticides and insecticides: Pesticides and insecticides are chemicals designed to kill pests. Farmers spray pesticides either manually or by using tractors, planes etc.
3. Trap cropping: Trap crops are crops which are planted to divert pests from nearby crops. It is also easier to kill pests accumulated on trap crops.