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Hypoaspis miles
This tiny (0.5 mm) light-brown mite naturally inhabits the top 1/2" layer of soil where fungus gnats, as well as springtails and thrips pupae dwell. The female Hypoaspis mites lay their eggs in the soil, which hatch in 1-2 days, and the nymphs and adults feed on the soil-dwelling pests. Populations of Hypoaspis include both sexes, but the males are much smaller and rarely seen.
Each Hypoaspis mite will consume 1-5 prey or eggs per day. They survive by feeding on algae and/or plant debris when insects aren't available. Their entire life cycle is 7-11 days.
Hypoaspis are used primarily for control of fungus gnat larvae, but they also feed on western flower thrips pupae.
Hypoaspis can also be effective at ridding pet tarantulas, lizards and snakes of pest mites. Moisten area before introducing Hypoaspis. Introduce a few tablespoons of substrate with hypoaspis per habitat every day, as needed. Pest mites should dissappear within 48 hours. Continue introducing Hypoaspis until container is empty. Lighter dosages serve as a preventative, higher dosages as a curative.
Release rates: 5,000 mites treats 500-1,000 plants; 10,000-25,000/per acre. For maximum fungus gnat control, use with Neoseiulus cucumeris and Beneficial Nematodes.
Application:
Hypoaspis should be released immediately upon arrival. Moisten soil or target area planting media at least 10 minutes prior to release. Containers include a shaker lid which allows for distribution over the soil surface. Concentrate the bulk on the most heavily infested areas. Hypoaspis moves well on soil surfaces, so it is unnecessary to apply to all surfaces. Leave the empty container in the treatment area until any stragglers have left.
Although Hypoaspis will move between plants in pots, at least every second plant should be treated. Application needs to be made early enough to allow the mites to spread. They will not move throughout an entire greenhouse from a single introduction point.
Hypoaspis will not survive below the top 1/2 inch of soil, so mixing mites into the growing media prior to potting is not recommended.
Other biocontrol agents to use in conjunction with Hypoaspis are Ladybird beetles, Green Lacewing, Minute Pirate Bug (Orius sp.), and Neoseiulus cucumeris, Beneficial Nematodes (Steinernema feltiae), and Bacillus thuringiensis var. israelensis.
154011 Hypoaspis sp., 1/2 Liter (7,500) (1#) $29.50
154021 Hypoaspis sp., 1 Liter (15,000) (2#) $42.00
154031 Hypoaspis sp., 2 Liter (30,000) (3#) $72.00
154041 Hypoaspis sp., 3 Liter (45,000) (4#) $86.00
154061 Hypoaspis sp., 6 Liters (5#) $150.00
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