Question

What are the three methods of pest control?

Answer 1

A pest is any organism which can spread disease, and causes destruction or is otherwise a nuisance. Samples of beneficial insects are dragonflies (which feed mainly on mosquitoes) and girl beetles (which eat aphids, scale insects, mites, and other insects).

Complete answer:
Three pest control methods are –
Biological pest control
Mechanical pest control
Poisoned bait
Pest control is the regulation or the management of all species which are defined as the pest, and the members of this kingdom of the Animalia and its impact adversely on human activities. The human response is also dependent on the importance of the damage done and also it can range from the tolerance, through deterrence and the management, to the attempts to completely eradicate the pest.
Pest control measures could also be performed as a part of an integrated pest management strategy. In agriculture, pests are kept trapped by cultural, chemical and biological means. Ploughing and cultivation of the soil are before sowing to mitigate the pest burden and there's the contemporary trend to limit the employment of these pesticides as far as possible.
This can be achieved by the monitoring of the crop, only applying insecticides when these are necessary, and by growing varieties and the crops which are immune to pests. The possible and the biological means are also used as encouragement of the natural enemies and of the pests and the introducing suitable predators or the parasites.

Note:
Control of those pests are attempted through the exclusion, repulsion, and the physical removal or chemical means. Alternatively, various methods of biological control will be used including sterilisation programmes.