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Dead leaves remain on twigs killed by oak pit scales. Least pit scale, Asterodiaspis mina, infests this Engelmann oak.

Dry brown dead leaves near green leaves on Engelmann oak twig infested with least pit scale. Orange Co. by JKC. Credit: Jack Kelly Clark
Dead leaves remain on twigs killed by oak pit scales. Least pit scale, Asterodiaspis mina, infests this Engelmann oak. Credit: Jack Kelly Clark
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