Willow bead gall mite (Aculus tetanothrix) |
Willow bead gall mite (Aculus tetanothrix) |
Galls on red oak made by Polystepha pilulae |
Gall on Red Oak leaf made by a Callirhytis wasp |
Insect gall on American elm leaf |
Galls made by Phylloxera sp. |
Galls on a bitternut hickory made by Phylloxeran aphids |
Spindle galls on Sugar maple made by by Spindle Gall Mites (Vasates aceriscrumena) |
Cynipid wasp gall on bur oak leaf |
Galls on willow |
Gall on hawthorn (Cratageus) |
Spindle or finger galls |
Bur oak galls |
Galls on bitternut hickory made by Caryomyia, sp. |
Cynipid wasp galls (Phylloteras poculum) |
Galls on butternut made by Aceria cinereae |
Cynipid wasp galls (Phylloteras poculum) on bur oak |
Cynipid wasp galls (Phylloteras poculum) on bur oak |
Gall on American Elm |
Harmandia Galls on poplar leaf |
Gall on Ninebark leaf (Physocarpus opulifolius) |
Harmandia Galls on poplar leaf |
Mossy rose gall |
Gall on bitternut hickory leaf, made by "em>Phylloxera |
Galls on bitternut hickory leaf |
Galls on rose leaf |
Galls on rose leaves |
Gall on staghorn sumac made by Melaphis rhois aphids |
Gall on staghorn sumac made by Melaphis rhois aphids |
Gall on staghorn sumac made by Melaphis rhois aphids |
Gall on staghorn sumac made by Melaphis rhois aphids |
Galls |
Oak galls on veins of red oak leaf made by Dryocosmus rileyi |
Oak gall with springtail |
Oak leaf galls on Bur oak |
Oak leaf galls on Bur oak |
Oak galls on bur oak leaf (Quercus macrocarpa) |
Wild Grape leaf galls |
Galls on wild grape by Daktulosphaira vitifoliae |
Gall on a willow leaf |
Willow gall caused by a sawfly |
Willow gall caused by a sawfly |
Willow gall caused by a sawfly |
Hackberry blister galls and Black-capped Chickadee |
Galls on ash leaf |
Galls with larvae on hawthorn leaf (Crataegus sp.) |