Question

Give a brief account on natural pest controlling methods.

Answer 1

Biological control or natural pest-controlling method is a method of controlling pests such as insects, mites, weeds and plant diseases using other organisms. It relies on predation, parasitism, herbivory, or other natural mechanisms, but typically also involves an active human management role. An example of biological control is the release of parasitic wasps to control aphids. Aphids are a pest of plants and cause huge damage to plants as they remove nutrients from the plant. In this way, the aphid population will decrease quickly.