Stratiolaelaps scimitus is a predatory mite (0.5 – 1 mm.). It feeds on various organisms such as nematodes, sciarid and duponchelia. Stratiolaelaps scimitus looks like Gaeolaelaps aculeifer (former name Hypoaspis aculeifer), but is more in the top layer of the soil (top 5 cm.).
Life cycle and relative effectiveness
Female adults lay their eggs in the soil. These eggs develop, within three day, into young nymph. The larvae feed themselves with various organisms. The life cycle from egg to adult will be 10 – 14 days, by optimal conditions and the sex rate is 50% (1 male vs. 1 female).
Application and dose
Stratiolaelaps scimitus is most active in moist soil. Even so Stratiolaelaps scimitus can be complementary to Steinernema feltiae in the biological controlling. The material should not be scattered on the plant, but split with the scattering material (vermiculite / sawdust) in heaps on the growing surface. Dosage is between 50 and 1.000 predatory mites per square meter, depending on the infection, crop and cultivation time.
Storage and handling
Stratiolaelaps scimitus supplied in bottles (1000 ml.), containing 10.000 predatory mites (all stages). Keep the bottles horizontally, in darkness, at a temperature between 10°C – 15°C. Maximum storage two to three days.