Fungus Gnats Killing Plants: Larvae Control Guide

Adult gnats are a nuisance; larvae in wet soil damage roots. To break the cycle:

1. Keep soil as dry as possible.
2. Remove loose surface soil; top-dress with coarse coir, sand, or diatomaceous earth.
3. Place ¼″ raw potato slices on soil; discard after 24 hrs with larvae. Repeat.
4. For heavy infestations: Knock-Out Gnats ($20).

Detection: add water, watch for tiny larvae swimming. Prevention: sterile, bark-free mix with perlite; avoid overwatering. Trap adults with red wine.

If plants wilt despite moist soil, roots may already be rotted—send details for assessment.