Twospotted Spider Mite (
Tetranychus urticae) - This is the most common and destructive mite on deciduous ornamentals. It has an extremely wide host range and will feed on many varieties of trees and shrubs, and it may attack greenhouse and field crops. It might feed on flowers, weeds, or fruits,. It is the most common mite pest infesting house plants. Immatures and adults are yellowish to greenish with two dark spots on either side of the body. Eggs are spherical and translucent. Delicate strands of webbing are spun by the mites on the undersides of infested leaves and between branches.
Twospotted spider mites overwinter as adult females in the soil or under the bark of host plants. They become active during the spring and may feed and reproduce throughout the summer and into fall, provided conditions remain favorable for plant growth. It is considered a “warm season” mite thriving under hot, dry summer conditions. Damaging populations seldom occur during wet, cool weather. The mites are especially destructive to winged euonym ous (burning bush) in landscapes.
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