Question

science ch crop production and management.​

Answer 1

Answer:

and 1 In agriculture, pests are kept at bay by cultural, chemical and biological means. ... Control of these pests is attempted through exclusion, repulsion, physical removal or chemical means. Alternatively, various methods of biological control can be used including sterilisation programmes.

and 2 Biological control or biocontrol 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.

Explanation:

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Answer 2

Answer:

Pests can be controlled by using pesticides.

Biological control of pests means controlling them using pest-resistant crops