(The four-stage fungus gnat life cycle is about three weeks, from egg, to larva, to pupa, to adult fly.) They could also be present in your growing media, in egg or larval form. Most potting mixes are ...
just peel the white backing on both sides of the gnat killer for indoor to expose the gnat sticky traps for plants and plant the fungus gnat trap near an infested area. Avoide the trouble of tying ...
Using a pyrethrin spray or aerosol labeled for gnats or flying insects gets rid of the ones flying about but has no impact on eggs and nests, Jones said.