Contact insecticides offer safety advantages in homes, while residual insecticides are useful when the insects are a constant problem. Is this statement true or false?

The statement is true because contact insecticides are designed to kill pests on contact, which allows for immediate action against insects that are present. This type of insecticide generally poses lower risks to humans and pets when applied properly, especially in indoor environments, since they don’t leave a lingering residue that can be potentially harmful over time.

In contrast, residual insecticides have a longer-lasting effect as they remain active on surfaces for an extended period, controlling insects that may not be present at the time of application. This makes them particularly effective in situations where insect problems are ongoing or recurrent, as they provide continuous protection against infestations.

Thus, the distinction made between the two types of insecticides in terms of safety and effectiveness in various situations aligns with best practices in pest control.