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It is applied to infected soil and will kill fungus gnat larvae for 30–60 days from a single application. Its mechanism of action is to interfere with chitin production and deposition and it also triggers insect larvae to molt early without a properly formed exoskeleton, resulting in the death of the larvae. Although it is targeted at fungus ...
Most fungus gnats (Sciaroidea excluding Cecidomyiidae) live in forests with their larvae occurring in fungi, dead wood and soil. There are some which live in wetlands such as fens. [4] Several genera of Sciaridae and Mycetophilidae may reach high abundances in damp buildings with wet organic matter. [5]
Also, some species mine in plant parts above and below the earth. The larvae play an important role in turning forest leaf litter into soil. Adult females lay about 200 transparent eggs (each about 1 mm; 1 ⁄ 32" long) into moist soil. After about one week, the larvae hatch. About 90% of the larvae are female.
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 ...
The diet of most larvae is exclusively fungal, but some members of this family are predators. [2] Adults do not cause damage to plants, but lay 2 small eggs on the surface of moist soil (5–8 cm). Larvae, translucent, legless worms with a black "head" measuring 8–10 mm, later emerge from the eggs. The mouthparts are gnawing.
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In general, gnats go through the four life stages of egg, larva, pupa and adult, [6] similar to other flies. The fungus gnats lay their eggs in moist organic debris or soil, which hatch into larvae. The larvae feed on organic matter such as leaf mold, mulch, compost, grass clippings, root hairs and fungi.
Stratiolaelaps scimitus and the similar species, S. aculiefer are soil-dwelling, predatory mites. Stratiolaelaps mites feed on fungus gnats, springtails, thrips pupae, and other small insects in the soil. The mite is 0.5 mm (1 ⁄ 50 in) long and light-brown in color. It inhabits the top 1 ⁄ 2 inch (13 mm) layer of soil. Both nymphs and ...