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Callirhytis Oak Gall Wasps

By: James Baker PDIC Factsheets

This factsheet describes the biology of the Callirhytis gall wasp, which infests the twigs and leaves of many species of oaks.

Witchhazel Leaf Gall Aphid

By: James Baker PDIC Factsheets

This factsheet describes the biology of the witchhazel leaf gall aphid, Hormaphis cornu, and provides residential management recommendations.

Detachable Woolly Leaf Gall Wasp

By: James Baker PDIC Factsheets

This factsheet describes the biology of the detachable woolly leaf gall wasp, Andricus quercuslanigera, and provides residential management recommendations.

Cypress Twig Gall Midge

By: James Baker PDIC Factsheets

This factsheet describes the biology and management of the cypress twig gall midge, Taxodiomyia cupressiananassa, which infests bald cypress and pond cypress.

Rhododendron Gall Midge

By: James Baker PDIC Factsheets

This factsheet describes the biology of the rhododendron gall midge, Clinodiplosis rhododendri, and provides residential management recommendations.

Oak Vein Pocket Gall Midge

By: James Baker PDIC Factsheets

This factsheet describes the biology of the oak vein pocket gall midge, Macrodiplosis quercusoroca.

Willow Bladdergall Mite

By: James Baker PDIC Factsheets

This factsheet describes the biology of the willow bladdergall mite, Aculops tetanothrix, and provides residential management recommendations.

Pine Needle Gall Midge

By: James Baker PDIC Factsheets

This factsheet describes the biology of the pine needle gall midge, Thecodiplosis brachynteroides, and provides residential management recommendations.

Hickory Peach Gall Midge

By: James Baker PDIC Factsheets

This factsheet describes the biology of the hickory peach gall midge, Cariomyia persicoides, and provides residential management recommendations.

Dogwood Eyespot Gall Midge

By: James Baker PDIC Factsheets

This factsheet describes dogwood eyespot galls caused by an ocellate gall midge, Parallelodiplosis subtruncata.

Pitch Gall Midges

By: James Baker PDIC Factsheets

This factsheet describes the biology of pitch gall midges or resin gall midges in the genus Cecidomyia.

Macrodiplosis Gall Midges

By: James Baker PDIC Factsheets

This factsheet describes the biology of midges in the genus Macrodiplosis, which cause vein "pocket" galls on the leaves of oaks.

Cypress Flower Gall Midge

By: James Baker PDIC Factsheets

This factsheet describes the biology of the cypress flower gall midge, Taxodiomyia cupressi, and provides management recommendations.