7-Day Fungus Gnat Starter Plan
Direct answer
The 7-day plan: manage moisture first by letting the mix dry as far as each plant tolerates, set yellow sticky traps at soil level to catch adults, and add a Bti product labeled for fungus gnats if needed. Heavier infestations need monitoring beyond day 7, because immature stages already in the soil keep developing.
Check off each task as you go; your progress stays on this device. Keep monitoring after adult numbers fall, and continue moisture management and any labeled treatment long enough to account for remaining immature stages — that's the step people skip, and a common reason gnats seem to come back.
Progress 0/24
Day 01
0/6Confirm it, find the source, and cut the moisture
Day 02
0/3Let moisture and traps do the first work
Day 03
0/3Check the cards
Day 04
0/3Hold the dry line
Day 05
0/3Reassess before a second round
Day 06
0/3Close the soil surface
Day 07
0/3Review and keep monitoring
Still seeing adults after day 7?
Keep going into weeks 2–4
That's expected for a heavier infestation, not a failed plan. If you're using a Bti product, keep following its label on reapplication; keep managing moisture for each plant appropriately, and replace sticky cards as they fill. Stop counting from zero and start watching the trend on your traps — a falling count week over week means it's working, even before it hits zero. See how to read that trend in detail.
Troubleshoot a stalled infestation