Which pest is primarily managed by spot-treatment insecticides as opposed to broadcast applications?

• A. Bluegrass billbug
• B. Hairy chinch bug
• C. Japanese beetles
• D. European chafer

Answer: (C)

Spot treatments are used when pest activity is localized, so you target only the areas where the pest is actually active rather than treating the whole area. Japanese beetles fit this pattern because they tend to feed and cause damage in specific spots or on particular plants, often around ornamentals or limited patches of turf. Targeted sprays in those hotspots are enough to control the problem and avoid unnecessary blanket applications.

In contrast, the other pests listed typically require broader lawn coverage because their damage or risk is more widespread across the turf and its root zone. That makes broadcast applications across the entire area the more common approach for those pests.