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