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Fall Sprays For BMSB Can Cause San Jose Scale Flare Up

Christina Herrick Posted by Christina Herrick|November 18, 2014
Damage on apples from San José scale. Note both scales and red discoloration around scales. (Photo credit: Budwood.org)

Damage on apples from San José scale. Note both scales and red discoloration around scales. (Photo credit: Budwood.org)

David Biddinger, tree fruit research entomologist with Penn State University, discusses control options for San Jose Scale (SJS), which can appear when using sprays to control Brown Marmorated Stink Bug (BMSB).

Although Biddinger acknowledges that SJS is easy to control with many options available to growers, prevention is the best cure.

“It is also a dangerous pest to leave uncontrolled. After a few years of heavy infestation, limbs and even small trees can be killed and the percentage of infested fruit can reach over 80% in only a season or two,” he writes.

Click here to read recommended San Jose Scale control methods.

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Source: Penn State University bulletin

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Christina Herrick is former Editor of American Fruit Grower magazine and Western Fruit Grower magazine, published by Meister Media Worldwide. See all author stories here.