Question

What are the two crucial parameters essential for regulating the spread of pest population? And, how do they regulate the spread of pest population?

Answer 1

The two factors that play a crucial role in regulating the spread of pest population include temperature and natural enemies.

Temperature

It is an abiotic factor that regulate the spread of pest population.Temperature play an important role in the regulation of ecology of insect pest population. In some cases high temperature will favour the growth of pests.Temperature play an important role in the regulation, growth and development of pest. Some of the insects like cabbage loopers, leafminers can develop quickly at a temperature range of 85 to 90 degree Celsius where low temperature are unfavorable for their growth.In the cases of extreme hot or coldness insect pest population will remain low.Thus weather is an important factor that regulate the spread of pest population.

Natural enemies

Commonly employed natural enemies like parasites, predators play an important role in regulating the pest population. The effectiveness of pest regulation varies with the type of natural enemies used. Natural enemies will cause damage to pest populations in very early stage thereby reduce the pest population.Pest control by natural enemies is ecologically and economically promising approach that helps in managing the pest population to a large extent. The use of natural enemies is an alternative for fertilezers used to regulate pest population thus have less or no environmental .These natural enemies will interfere with the life cycle of the pest thus regulates the pest populations.

In conclusion both weather and natural enemies play a crucial role in regulating the spread of pest population and prevention the economic losses associated with it.