 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 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.) |