The mode of action helps determine:

• A. The proper chemical and help predict which pesticide will work best
• B. The cost of the product
• C. The color of the container
• D. The brand name

Answer: (A)

Pesticide mode of action describes how a chemical affects the pest at its biological target. Knowing this helps you choose a product that is likely to be effective for that specific pest and to anticipate how it will perform given the pest’s biology. It’s also key for resistance management—rotating products with different modes of action reduces the risk that pests will develop resistance. The cost, container color, and brand name are not determined by how the pesticide works, so those factors aren’t what the mode of action tells you.