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Almond

Other Pests You May See During the Dormant Season

Names link to more information on identification and management.

Click on photos to enlarge
Adult spider mites, twospotted spider mite.
Spider mites
Identification tip: The overwintering female mites are red or orange colored and are found under rough almond bark, in ground litter, and on winter weeds. Adult males are not present in the winter.
American plum borer larvae bore in scaffold crotches of young trees.
American plum borer
Identification tip: Extensive gumming around scaffold crotches, at pruning wounds, or in crown galls may indicate the presence of this borer.
Pile of frass at entrance of peach twig borer hibernaculum.
Peach twig borer hibernacula
Identification tip: Overwintering larvae are sheltered in tiny cells (hibernacula) that they bore under the bark of limb crotches on 1- to 4-year-old wood or in bark cracks on larger limbs and the trunk.
Armillaria root rot (oak root fungus).
Armillaria root rot (oak root fungus)
Identification tip: In the winter months, large fleshy mushrooms grow at the base of trees infected with oak root fungus.
Characteristic crescent-shaped mound and plugged burrow opening of a pocket gopher, Thomomys sp.
Pocket gopher mounds
Identification tip: Pocket gopher mounds are generally fan-shaped and have a plugged opening.
 

Statewide IPM Program, Agriculture and Natural Resources, University of California
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