Feltiella acarisuga is a gall midge that devours spider mites. The four larval stages all eat spider mites at a rate of about 5 times more than P. persimilis. After about one week, the larvae pupate. The fully-grown larvae are 1.7 to 1.9 mm long and have a diameter of 0.4 mm. The pupae of Feltiella look like white fluff and are usually found near the veins of the leaf. They are 1 to 1.5 mm long. The total life cycle varies with temperature, but generally takes about 2 to 4 weeks. Feltiella is active in cold and dark conditions which make it an appropriate predator for spring and fall. The adult flying capabilities allow it to effectively seek out hot spots.
Approximately 500-1000 per acre.
Open the container in the infested area and allow the midges to emerge.
Orders for F. acarisuga must be received by 10am on Wednesday for shipment the following Wednesday, with exceptions for major holidays. Beneficial insects are normally shipped by FedEx Ground within the state of Washington, and by FedEx Express elsewhere in the USA. Please contact us directly if you require a different method of shipping.