MDARD Michigan Core Pesticide Applicator Practice Exam

Which of the following is true about microbial pesticides?

1. They kill microorganisms.

2. They are derived from plants.

3. They may be fungi, bacteria, or viruses.

4. They are broad-spectrum.

The correct answer is: They may be fungi, bacteria, or viruses.

Microbial pesticides are specifically defined as products that utilize microorganisms, such as fungi, bacteria, or viruses, to control pests. These microorganisms may act as biocontrol agents, either by directly attacking and damaging pest populations or by disrupting their life cycles. This biological approach to pest management is an important aspect of integrated pest management strategies, as it often reduces reliance on chemical pesticides and helps minimize environmental impact. The focus on microorganisms is what makes this answer accurate. Unlike traditional pesticides, which may aim to kill a wide range of organisms, microbial pesticides are designed to target specific pests effectively while typically being less harmful to non-target organisms, including beneficial insects and other wildlife. This specificity is one of their advantages in sustainable pest control practices.