Twig Girdlers and Dropped Twigs Horticulture and Home Pest News
An occasional sight in late summer, especially in southern Iowa, is the accumulation of small broken twigs on the ground under oak, hickory and other shade, nut and fruit trees. The foliage at the ends of twigs turns brown prematurely before the twigs fall to the ground. The dropped twigs that look like they were neatly cut from the tree as with a pruning shear are the work of the twig girdler, Oncideres cingulata. Damage by the twig girdler is occasionally conspicuous. Heavily damaged trees may appear ragged and young trees can become deformed.
Twig Pruners and Girdlers Gardening in the Panhandle
Hort Update for October 3, 2022, Horticulture, Landscape, and Environmental Systems
Gfcfactsheets/Twig Girdlers and Pruners - Bugwoodwiki
Fallen oak shoots may be work of the twig pruner - MSU Extension
In My Yard ---- Twig Girdler (at last)
Insects Gardening in the Panhandle
Northern Pecans: Twig girdler damage on pecan
Twig Girdler and Twig Pruner Beetles
In My Yard ---- Twig Girdler (at last)
Oak Leaves Flagging throughout the Tree Canopy
Twig Girdlers and Dropped Twigs Horticulture and Home Pest News
Twig Girdlers Frustrate Homeowners and Commercial Producers - TPGA
Insects Gardening in the Panhandle
Hort Update for October 3, 2022, Horticulture, Landscape, and Environmental Systems
Twig girdler, insect
