group of mature azalea caterpillars on a branch

agricultural agronomist and august azalea azaleas black bright bug carbaryl caterpillar cyfluthrin damage datana day defoliation early eat focus foliage garden gardening green gregarious groups hairy horticulture horticulturist insect insecticide labor landscaping larvae lawn leaf leaves major malathion moth nursery pest red rhododendron september sevin shallow strip stripes summer white worms