Which maintenance practice helps minimize chinch bug problems?

Which maintenance practice helps minimize chinch bug problems?

• A. Manage thatch.
• B. Plant fine red fescue in full sun.
• C. Apply high-nitrogen fertilizer in spring.
• D. Do not plant endophyte-enhanced grasses.

Answer: (A)

Chinch bugs are more likely to cause trouble when turf is stressed or has a thick thatch layer, because thatch provides a sheltered habitat and can slow water and pesticide movement, allowing eggs and nymphs to persist and populations to build. Keeping the thatch in check reduces hiding places and helps the grass stay vigorous, making it less attractive to chinch bugs. Dethatching or core aeration to target excessive thatch, combined with proper irrigation and mowing to maintain healthy turf, directly lowers chinch bug issues. The other options don’t address the root habitat that chinch bugs exploit: choosing a different grass type for sun exposure doesn’t fix the pest problem in the existing turf; applying high nitrogen in spring can produce tender growth that chinch bugs favor; and whether a grass is endophyte-enhanced doesn’t guarantee protection against chinch bugs and still doesn’t remove the protective thatch habitat.

Chinch bugs are more likely to cause trouble when turf is stressed or has a thick thatch layer, because thatch provides a sheltered habitat and can slow water and pesticide movement, allowing eggs and nymphs to persist and populations to build. Keeping the thatch in check reduces hiding places and helps the grass stay vigorous, making it less attractive to chinch bugs. Dethatching or core aeration to target excessive thatch, combined with proper irrigation and mowing to maintain healthy turf, directly lowers chinch bug issues.

The other options don’t address the root habitat that chinch bugs exploit: choosing a different grass type for sun exposure doesn’t fix the pest problem in the existing turf; applying high nitrogen in spring can produce tender growth that chinch bugs favor; and whether a grass is endophyte-enhanced doesn’t guarantee protection against chinch bugs and still doesn’t remove the protective thatch habitat.