It is possible that a pesticide application will kill all insect adults in a particular location yet have no effect on any insect eggs that are present. True or False?

The assertion is true because many pesticides are designed to target specific life stages of insects, predominantly adult forms. Adult insects can be affected by contact or systemic pesticides that are designed to be lethal upon application. However, many pesticides do not penetrate or are ineffective against eggs, which have protective coatings.

Eggs are often less susceptible to chemical treatments due to their physical structure, which offers a level of protection against pesticides. Some pesticides have little to no residual effect on eggs or may require different or additional methods of application, such as ovicides, which specifically target the egg stage. Therefore, a pesticide application could indeed completely eradicate adult insects in a given area while having no impact on the eggs, allowing those eggs to hatch and potentially continue the population cycle.