Question

what best describes the role of chemical pesticides in ipm?
it should only be used as the last resort.
always spray chemical pesticides.
pesticides are the only option.
it is the safest method of pest control.

Explanation:

IPM (Integrated Pest Management) emphasizes using a combination of pest - control methods. Chemical pesticides are not the first choice. They can have negative impacts on the environment, non - target organisms, and human health. Instead, IPM focuses on prevention, monitoring, and using non - chemical methods (such as biological control, cultural practices) first. Chemical pesticides are only used when other methods have failed.

Answer:

It should only be used as the last resort.