Western flower thrips. Photo by: Jack T. Reed, Mississippi State University, Bugwood.org.

Two spotted spider mites on webbing. Photo by: David Cappaert, Michigan State University, Bugwood.org.

Two spotted spider mite adults. Photo by: Frank Peairs, Colorado State University, Bugwood.org.

Japanese maple scale on dogwood. Photo by: Brian Kunkel, Ornamentals IPM Specialist, University of Delaware.