spider mites of wisteria

Disease Information

spider mites

DESCRIPTION OF THE PEST

These small pests feed primarily on the underside of the foliage.

Symptoms

Spider mites suck juices from leaves causing fine stipples on foliage and silvery webs; they cause colorless or whitish spots on foliage.

Management

Natural enemies of mites, such as ladybird beetles (ladybugs), thrips and predaceous mites usually keep mite populations reduced. While pesticides are available, their misuse often makes the problem worse by killing off the mites’ natural enemies. If the population level is low, early season mite infestations can often be controlled with insecticidal soap or horticultural oil sprays. Insecticidal soaps and horticultural oils offer no residual activity and help to conserve beneficial insect species.

A recommended miticide for use on azaleas is tau-fluvalinate. It is best to alternate the miticides that you use to decrease the chance of mites developing resistance. An alternate insecticide with miticidal activity is bifenthrin.

If mites have been a problem on azaleas, do not use carbaryl sprays or imidacloprid soil drenches to control other pests. Their continued use may cause a subsequent spidermite outbreak.

 

 

 



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