Crabapple: Aphids categories: Crabapple Crabapple Insects Ornamental trees Ornamentals last review date: 2026-04-24 07:41 Aphid colony on leaf Photo by: A.L. Antonelli Biology Aphids on crabapples may be green or reddish in color. They typically feed near the tip of growing shoots, sometimes deforming leaves and stunting terminal growth. Fruit may also be deformed. These […]
Crabapple: Apple-and-thorn skeletonizer categories: Crabapple Crabapple Insects Ornamental trees Ornamentals last review date: 2026-04-24 10:32 Apple-and-thorn skeletonizer caterpillar feeding on leaf Photo by: A.L. Antonelli Biology The adult of the apple-and-thorn skeletonizer is a small dark-brown moth. It overwinters as a pupa or an adult, with the females laying eggs in the spring. The caterpillars […]
Crabapple: Leafrollers and leaftiers categories: Crabapple Crabapple Insects Ornamental trees Ornamentals last review date: 2026-04-24 10:42 Rhododendron leafroller leaf damage Photo by: Unknown Biology Several species of caterpillars will roll and tie leaves of fruit trees. Characteristic signs of feeding include leaves that are webbed, rolled, and tied, often with frass in the webbing. Damaged […]
Crabapple: San Jose scale categories: Crabapple Crabapple Insects Ornamental trees Ornamentals last review date: 2026-04-24 11:44 San Jose scale closeup Photo by: K. Grey Biology San Jose scale is an armored (hard) scale found on many deciduous trees and shrubs including (but not limited to) apple, cherry, elm, maple, poplar, and willow. The scale insects […]
Crabapple: Spider mites categories: Crabapple Crabapple Insects Ornamental trees Ornamentals last review date: 2026-04-24 12:24 Spider mites under microscope Photo by: L.K. Tanigoshi Biology Spider mites on crabapple vary in color. They may be yellow, green, red or brown. They have eight legs and are very small, appearing as moving dots when viewed through a […]