Fungus gnats can be a critical pest in greenhouses exactly where they can damage the roots of plants. They also feed on fungi and decaying plant material. For much more details about fungus gnats as pests of ornamentals, seek the advice of Ornamentals and Turf Insect Note 29 Occasionally, fungus gnats turn into a nuisance indoors in each residential and commercial buildings when adults emerge in large numbers from potted plants or some other chronic source of moisture (and subsequent mold growth). Adults are attracted to lights and are often very first noticed at windows or light fixtures.
In two current circumstances, home owners complained about fly issues. In neither circumstance could they inform where the flies were coming from. One particular homeowner described flies buzzing around many rooms and flying into their faces, providing the impression that the flies were attacking them. A sample revealed the flies to be fungus gnats. Despite their description, fungus gnats do not attack men and women. When asked, the homeowner did say they had houseplants in their property providing them the probably supply of the issue.
Fungus gnats like moist places. Make confident your containers have great drainage, and keep away from keeping your plants also wet. Let the best 1-3 inches of soil dry before adding far more water. Maintaining the leading of the soil dry will help quit fungus gnats from laying their eggs in the soil. Also, be certain to empty excess water out of the saucers below your container plants.
Preserve the soil dry! That is the simplest and most powerful technique that I know of to kill off the larvae and discourage egg-laying on the dry soil. One particular problem that may possibly happen to you is that plants want water, so there is a limit to how dry you can preserve the soil Until the infestation is gone, I water all plants from the bottom (by giving just enough water for the plant's requirements, and by adding it to the saucer below the pot). The roots manage to get at the water and considering that I do not use a lot water, there is not sufficient to wick up to the prime couple of inches of the pot and wet the only (top) layer of soil that the gnats can lay their eggs in! <img class="alignleft" style="float:left;margin-right:10px;" src="https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Zimtwanze1.jpg/220px-Zimtwanze1.jpg" width="298" alt="" />
Carefully examine new plants for any indicators of her comment is here before purchasing. If you put your houseplants outdoors in the summer time, be confident they are insect-totally free just before bringing them back into the residence. Often use a sterile potting soil mix when planting or re-potting. Take care not to overwater your plants, as fungus gnats call for a moist environment to feed and breed. Be positive that the container you are using has great drainage and permit the soil to dry out amongst waterings.