Underapplication of pesticide can lead to which outcome?

• A. Poor Control
• B. Over Control
• C. Equipment Damage
• D. Increased Yield

Answer: (A)

The main idea is that control depends on applying enough pesticide to reach and affect the pest population across the treated area. When you underapply, the dose or coverage is too low, so many pests survive the treatment. Those survivors keep feeding, breed, and the population isn’t reduced enough, which means the pest problem remains—giving you poor control. Sublethal or patchy applications can also set the stage for resistance over time if pests are repeatedly exposed to insufficient concentrations. The other outcomes don’t fit because over-applying can cause crop or plant damage, equipment issues, or environmental harm; underapplication doesn’t create more yield and, in fact, typically results in continued or worsening damage due to ineffective suppression.