Oak lecanium scale. Photo credit: B. Kunkel

Callery pear rust. Photo credit: N. Gregory

Fletcher scale with mealybug destroyer. Photo credit: B. Kunkel

Lecanium scale eggs. Photo credit: B. Kunkel

Japanese apple rust on apple under a 12x dissecting scope. Photo credit: N. Gregory

Cedar hawthorn rust on serviceberry. Photo credit: N. Gregory

Cottony camellia scale. Photo credit: B. Kunkel

Elm black spot (anthracnose) caused by the fungus Gnomonia. Photo credit: N. Gregory

Dunce cap stage. Photo credit: B. Kunkel

Chicken of the woods. Photo credit: N. Gregory

Ramorum blight on Rhododendon leaves. Photo credit: U GA

Crown thinning of ash. Photo credit: B. Kunkel

Serpentine galleries from EAB. Photo credit: B. Kunkel

Ash rust. Photo credit: N. Gregory

Bark splitting from EAB on ash. Photo credit: B. Kunkel

Woodpecker damage. Photo credit: B. Kunkel

EAB. Photo credit: Kenneth R. Law, USDA APHIS PPQ Bugwood-org

Epicormic growth of ash. Photo credit: Eric R. Day, VPI Bugwood-org

Rhododendron showing marginal leaf scorch and spot. Photo credit: N. Gregory

Gypsy moth larvae (left). Photo credit: Jon Yuschock bugwood-org

Eastern tent caterpillar
(right). Photo credit: David Cappaert bugwood-org

Bacterial blight on lilac. Photo credit: N. Gregory

Euonymus caterpillar feeding with webbing. Photo credit: Univ. of MD

Euonymus leaf notcher. Photo credit: Univ. of MD

Buck moth dark form. Photo credit: Susan Ellis bugwood-org

Buck moth light form. Photo credit: Lacy L. Hyche, Auburn Univ. bugwoodorg

Herbicide injury to hydrangea twigs and leaves. Photo credit: N. Gregory