Recognizing fungus gnat:
Fungus gnats or ground flies form a separate family (Sciaridae) within the mosquitoes. They are also called humus or moss flies. Fever mosquitoes are very common and sometimes form a plague in young plant material and mushrooms. Adult spider-mosquitoes often stand out as 'dancing' black flies above the potting soil. Contamination usually occurs from fresh, new potting soil, which contains larvae or eggs.
Larvae of the fern mosquito eating the roots of plants. In addition, the larvae can transfer mites, nematodes, viruses and fungal spores. The death of (young) plants usually occurs spot-on.
Fungus gnat damage:
The larvae of most species feed on fungi growing on soil, helping in the decomposition of organic matter. In addition, the larvae can transfer mites, nematodes, viruses and fungal spores. The death of (young) plants usually occurs localized.
- life cycle total 3 to 4 weeks takes place for the most part in the ground
- egg: 2 to 4 days
- larval stages: 2 to 2.5 weeks
- pupal stage: 3 to 4 days
- adult: about 7 days
Host plants fungus gnat;
- no preference for certain plant species but especially for a humid, humus-rich environment