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Natural Enemies of Vegetable Insect Pests in Hawaii PRIMARY PREY spider mites, thrips, fungus gnats, and some insect eggs PREDATORY STAGES nymphs and adults APPEARANCE very small (<1mm ) tear‐drop shaped orange‐red, tan or brown fast moving nymph mites resemble small adults VEGETABLE CROPS greenhouse crops field crops affected by spider mites or thrips Acarina: Phytoseiidae WHAT TO LOOK FOR Mites are not insects; they are more closely related to spiders. Adults have four pairs of legs and two, rather than three, body parts. They can access prey in areas not reachable by chemical sprays. Look for them in areas of spider mite and thrips infestation. Thrips predator mite

Acarina: Phytoseiidae PRIMARY PREY · Natural Enemies of Vegetable Insect Pests in Hawaii PRIMARY PREY • spider mites, thrips, fungus gnats, and some insect eggs

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Page 1: Acarina: Phytoseiidae PRIMARY PREY · Natural Enemies of Vegetable Insect Pests in Hawaii PRIMARY PREY • spider mites, thrips, fungus gnats, and some insect eggs

Natural Enemies of Vegetable Insect Pests in Hawaii 

PRIMARY PREY •   spider mites, thrips, fungus gnats, and some insect eggs 

PREDATORY STAGES •   nymphs and adults 

APPEARANCE •   very small (<1mm )  •   tear‐drop shaped •   orange‐red, tan or brown •   fast moving •   nymph mites resemble small adults 

VEGETABLE CROPS •   greenhouse crops •   field crops affected by spider mites or thrips 

Acarina: Phytoseiidae 

WHAT TO LOOK FOR Mites are not insects; they are more closely related to spiders. Adults have four pairs of legs and two, rather than three, body parts. They can access prey in areas not reachable by chemical sprays. Look for them in areas of spider mite and thrips infestation.

Thrips predator mite

Page 2: Acarina: Phytoseiidae PRIMARY PREY · Natural Enemies of Vegetable Insect Pests in Hawaii PRIMARY PREY • spider mites, thrips, fungus gnats, and some insect eggs

Predatory mites are among the most successful biocontrol agents. Numbers can be very high on crops that produce a lot of pollen, such as: 

•   sweet peppers •   fruit trees •   sweet corn  Reducing use of insecKcidal sprays may also encourage predatory mite populaKons.   Top: Sweet  peppers 

Bo'om: Mango trees 

PESTS ATTACKED •   spider mite adults, nymphs, larvae, and eggs •   thrips •   small insects and their eggs 

WHAT THEY CAN DO FOR YOU 

PREDATORS Predators are beneficial insects that aTack, kill, or consume a wide variety of common pests. Males, females, immatures, and adults may all be predatory. Predators include lacewings, flies, spiders, beetles, true bugs, and predatory mites.