Amblyseius cucumeris

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TARGET PEST: A wide range of Thrip species. Western Flower Thrips, Chilli Thrips. Also preservative/low infestations Broad Mites, Cyclamen and Two-Spotted Spider Mites.

TEMP RANGE: 43-90°     HUMIDITY: 65-75%
Light to Moderate 5-20 mites per sq. ft. bi-weekly, for 3-5 weeks

5 - 20 predators per square foot.

Relatively high introduction rates are required because thrips can reproduce nearly twice as fast as cucumeris and cucumeris only feed on immature thrips, not adults. Rates will vary depending on crop and level of pest infestation. 

Using bulk container:  10 -100 cucumeris per plant weekly as needed. As a starter culture for young plants, place 25 cucumeris per plant at the base of the stem as soon as they are planted.

Slow Release Bags
Greenhouse- 1 bag per 5 plants every 1-2 weeks, until there is 1 bag per plant in infested areas. Interior plantscapes- 1 bag per large plant, every 6-8 weeks. Hang bags within 10 inches of the growing point on greenhouse crops, ensuring good contact with the stem and leaves. Bags should not be exposed to direct sunlight or overhead watering.

DESCRIPTION: Cucumeris is a species of predatory mite that feeds on immature stages of thrips. It also feeds on pollen, two spotted mites and other species of mites. Cucumeris adults are pear-shaped, tan colored mites, less than 0.5mm (1/50 inch) long. 

 A complete life cycle takes 10-12 days at 68° F. Newly hatched larvae do not feed until they molt at 2 days old. They feed for another 7 days before becoming adults. Adults live for up to 30 days.

 Use cucumeris along with other thrip predators such as Orius spp. and Hypoaspis. Pesticides and even wetting agents and spreader-stickers may adversely affect cucumeris survival. Broad spectrum and systemic insecticides are toxic to cucumeris.