Symptoms Management Strategies Figure 2 Closer view of galls on forsythia branches Introduction Agrobacterium A possible genetic abnormality has been suspected We have observed these galls to de ID: 91556
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Forsythia GallsUnsightly galls developing on forsythia not only Galls appear as clumps of nodule-like growths on Figs. 1 and 2). Symptoms are most noticeable when foliage is absent. No denite cause of these galls has been determined. ey have been suspected of being caused by either Symptoms Management Strategies Figure 2: Closer view of galls on forsythia branches. Introduction Agrobacterium A possible genetic abnormality has been suspected. We have observed these galls to develop several years after apparently healthy fosythia were planted---where spread out naturally, but where no new forsythia had tools between cuts. If replacing the plant, choose one Disease Cycle Figure 1: Galls on forsythia branches. READ THE LABEL BEFORE APPLYING ANY PESTICIDE! Changes in pesticide regulations occur constantly. All pesticides distributed, sold, and/or applied in New York State must be registered with the New York State Department of Environmental Conservation (DEC). Questions concerning the legality and/or registration status for pesticide use in New York State should be directed to the appropriate Cornell Cooperative Extension Specialist or your regional DEC oce. e Plant Disease Diagnostic Clinic Phone: 607-255-7850 Fax: 607-255-4471 kls13@cornell.eduslj2@cornell.edu Web: plantclinic.cornell.edu Science