Pests of Trees and Shrubs

On this Page:

• Bugs
• Diseases
• Other Critters

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Bugs

[Photos, left to right: (apple maggot) Joseph Berger, Bugwood.org; (arborvitae leafminer) Bruce Watt, University of Maine, Bugwood.org; (birch leafminer) Whitney Cranshaw, Colorado State University, Bugwood.org; (black vine weevil) Joseph Berger, Bugwood.org; (boxelder bug) Joseph Berger, Bugwood.org; (browntail moth) Jan Samanek, State Phytosanitary Administration, Bugwood.org; (bruce spanworm) E. Bradford Walker, Vermont Department of Forests, Parks and Recreation, Bugwood.org; (elm leaf beetle) Whitney Cranshaw, Colorado State University, Bugwood.org; (elongate hemlock scale) Eric R. Day, Virginia Polytechnic Institute and State University, Bugwood.org; (fall webworm) Steven Katovich, USDA Forest Service, Bugwood.org; (gypsy moth) Maine Forest Service; (hemlock woolly adelgid) Connecticut Agricultural Experiment Station Archive, Connecticut Agricultural Experiment Station, Bugwood.org; (leafhoppers) Whitney Cranshaw, Colorado State University, Bugwood.org; (pine leaf adelgid) Whitney Cranshaw, Colorado State University, Bugwood.org; (plum curculio) Utah State University Cooperative Extension; (stink bugs) David Cappaert, Michigan State University, Bugwood.org; (tarnished plant bug) Russ Ottens, University of Georgia, Bugwood.org; (tent caterpillars)Catherine Herms, The Ohio State University, Bugwood.org; (viburnum leaf beetle ) Paul Weston, Cornell University, Bugwood.org; (western conifer seed bug) Joseph Berger, Bugwood.org; (white pine weevil) E. Bradford Walker, Vermont Department of Forests, Parks and Recreation, Bugwood.org; (anthracnose) Dr. Wayne Sinclair, Cornell University; (apple scab) Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org; (galls) William M. Ciesla, Forest Health Management International, Bugwood.org; James Solomon, USDA Forest Service, Bugwood.org; Steven Katovich, USDA Forest Service, Bugwood.org; Steven Katovich, USDA Forest Service, Bugwood.org; (powdery mildew) Andrej Kunca, National Forest Centre - Slovakia, Bugwood.org; (white pine blister rust) Joseph O'Brien, USDA Forest Service, Bugwood.org; (other) University of Minnesota Extension; (voles) USDA Forest Service - North Central Research Station Archive, USDA Forest Service, Bugwood.org; (chipmunk) David Cappaert, Michigan State University, Bugwood.org; (squirrels) Joseph LaForest, University of Georgia, Bugwood.org; (woodchuck) Gilles Gonthier; (raccoon) Ricky Layson, Ricky Layson Photography, Bugwood.org; (porcupine) Joseph O'Brien, USDA Forest Service, Bugwood.org; (woodpeckers) Johnny N. Dell, Bugwood.org; (sparrows, crows, starlings) Terry Spivey, USDA Forest Service, Bugwood.org]