Tree and Shrub Pests
Insects
Tent Caterpillars
Tent Caterpillars
Order: Lepidoptera
Families: Erebidae & Lasiocampidae
Description
Tent caterpillars, Malacosoma spp.
The forest tent caterpillar (Malacosoma disstria) is commonly found in ...
Spotted Lanternfly
Spotted Lanternfly
Lycorma delicatula
Order: HemipteraFamily: Fulgoridae
Description
Spotted lanternfly (SLF) is an invasive planthopper native to Asia. Since it entered the US in 2014, SLF has ...
Spider Mites in Shade Trees
Spider Mites in Shade Trees
Order: Acari
Family: Tetranychidae
Description
Spruce spider mite, Oligonychus ununguis
The spruce spider mite is a native pest of spruce and juniper. Adults are ...
Oystershell Scale
Oystershell Scale,
Lepidosaphes ulmi
Order: Hempitera
Family: Diaspididae
Description
Unlike most insects, adult oystershell scales do not have legs, eyes, or antennae. Their appearance ...
Locust Borer
Locust Borer, Megacyllene robiniae
Order: Coleoptera
Family: Cerambycidae
Description
Locust borer adults have brightly colored yellow markings and are about 19 mm (0.75 inch) long. The beetles ...
Lilac Borer
Lilac Borer, Podosesia syringae
Order: Lepidoptera
Family: Sesiidae
Description
Unlike most moth species, lilac borer adults are most active during the day. They resemble paper wasps (Poilstes ...
Japanese Beetle
Japanese Beetle, Popillia japonica
Japanese beetles have been one of the key insect pests of both turfgrass and landscape plants in the eastern US and now in the Western U.S. These beetles ...
Horntails
Horntails
Description
Generally, horntail wasps are moderately large at about 37.5 mm or 1.5 inches and have broad heads with small eyes. Adult coloration is determined by its species and ...
European Elm Scale
European Elm Scale,
Eriococcus spuria
Order: Hemiptera
Family: Eriococcidae
Description
All scale insects undergo incomplete metamorphosis and have three life stages: egg, nymph, adult.
These ...
Eriophyid Mites
Eriophyid Mites
Order: Acari
Family: Eriophyidae
Description
Adults have cylindrical bodies that taper at both the head and rear. They are translucent white or yellow and have two pairs of legs ...
Emerald Ash Borer
Emerald Ash Borer, Agrillus planipennis
Emerald ash borer is an invasive pest of ash trees. Larvae of this pest feed beneath the bark, eventually killing the tree. Emerald ash borer was found ...
Brown Soft Scale
Brown Soft Scale, Coccus hesperidum
Order: HemipteraFamily: Coccidae
Description and Lifecycle
Brown soft scales are small flattened oval insects that are common pests of greenhouse and house ...
Aphids on Shade Trees
Aphids on Shade Trees and Ornamentals
Aphids are an extremely common insect in landscapes and gardens. In ornamental plants, shrubs and trees, some aphids cause wilting or leaf curling and ...
Diseases
This category is still under construction. Information coming soon.
Weeds
This category is still under construction. Information coming soon.