http://minnesotaseasons.com/Fungi/Phomopsis_gall_on_hickory.html WebTumor growth in plants is commonly known as gall or burl. Galls contain knots, callus, ingrown bark and stains, whereas, burls are bark-covered and display wildly contorted grain. These tumors can occur on twigs, branches, trunks, roots, or leaves (like seen above) and might be numerous per host.
Ligustrum Texas Plant Disease Handbook
On most plants, Phomopsis galls appear as clusters of wooden nodules pressed tightly together. On Acer species, the galls will begin as smooth swellings where the bark will eventually roughen and crack as they grow. Phomopsis gall may cause girdling and dieback on infected branches and stems, however, it … See more Developed by Alicyn Smart, Assistant Extension Professor & Extension Plant Pathologist, University of Maine Cooperative Extension, and Nathan Andrews For information about UMaine Extension programs … See more In Maine, the species of most vulnerability are oaks (Quercus sp.), maples (Acer sp.), and highbush blueberry (Vaccinium corymbosum). The species of most vulnerability is a … See more This disease cycle has not been studied in depth. However, galls appear to start forming on twigs and small branches before infection of larger branches or the main stem. Galls begin to form as patches or roughened bark … See more Oaks (Quercus sp.), Maples (Acer sp.), Highbush blueberry (Vaccinium corymbosum), Forsythia (Forsythia sp.), Hickories (Carya sp.), … See more WebJan 29, 2024 · Phomopsis is a genus of gall-inducing ascomycete fungal pathogens (aka sac fungi) that contains numerous species that affect the foliage and wood of a variety of … csc in tallahassee fl
Phomopsis Gall - Cooperative Extension: Insect Pests, …
http://plantclinic.cornell.edu/factsheets/forsythiagall.pdf WebPhomopsis spp. Galls are round woody balls made up of many short woody nodules clustered together Galls may occur individually or be clustered on twigs and branches Galls are 1/4 to 2 inches across Galls may girdle and kill small twigs and branches Infected shrubs may show stunted growth and loss of vigor More information on Phomopsis Gall 5 of 5 WebFigure 2: Closer view of galls on forsythia branches. Introduction the bacterium that causes Crown Gall (Agrobacterium tumefaciens) or by a species of the fungus Phomopsis. A … csc integration