Japanese holly (Ilex)-Spider mite

Includes twospotted spider mite (Tetranychus urticae)

Pest description and damage Several species of spider mites can cause damage in Japanese holly especially in dry sites. Appearance of these mites varies with the species, although all are 0.02 inch or smaller. Adults and nymphs can be yellowish, greenish, or reddish brown, depending on species. Female European red mites are round with red bodies; males are yellowish-red. Twospotted mites are oval and yellowish-brown or green with distinctive black spots on the body. Plants are covered with fine silk webbing at branch axils or over sections, small plants may be engulfed in webbing under very heavy infestations. Mites damage leaves feeding on plant cells, which causes stippling, bronzing, and possibly leaf drop. The reduction in photosynthesis causes loss of vigor and yield.

For biology, life history, monitoring and management

See "Spider mite" in:

Management-chemical control

See Table 1 in: