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The larvae of fungus gnats live in the soil where they feed on fungi and organic matter, but they also eat plant roots. The larvae are thin maggots, with a shiny black head and long, whitish-to ...
Fungus gnats tend to breed in overwatered plants and flooded soils, like houseplants, gardens, and flower beds. These gnats are attracted to the fermented smell of decomposing fruits, flowers, and ...
Other methods for controlling fungus gnats include drenching the soil annually in an insecticidal soap. Hydrogen peroxide can be mixed with water and used to kill fungus gnat larvae in infected soil with a mixture of one part 3% hydrogen peroxide mixed with four parts water, then applied to the soil.
If the gnats keep appearing, experts at Colonial Pest Control Inc., recommend applying an indoor-friendly pesticide as a soil drench to soak and kill the gnats and fungus. 10. Hire a Pro.
A commercial preparation containing diflubenzuron is sold under the trade name Adept and is used as an insect growth regulator designed to kill fungus gnat larvae in commercial greenhouses. [5] [6] It is applied to infected soil and will kill fungus gnat larvae for 30–60 days from a single application. Although it is targeted at fungus gnat ...
Effective resistance in the plant host is generally not available. Sanitation is very important since the pathogen can be easily introduced into pasteurized soil or even soil-free potting mixes on dirty tools or pots. Especially in greenhouses, fungus gnats may also help move the pathogen from place to place.