See:
Redbud (Cercis spp.) - Vascular Streak Dieback
Maple (Acer spp.) - Verticillium Wilt
Notes The disease is mainly a problem on redbud trees across the southeastern USA but has also been found in 20 other woody ornamental species such as dogwood, fothergilla, giant lilacs, red maples and witchhazel. Samples are negative when tested for Verticillium wilt. Tree experience severe dieback, leaf scorch and stunting. A brown-to-gray streaking occurs within the water-conducting tissue (xylem) of infected branches. Cross-section cuts through stems show vascular discoloration in the form of circular dots, rings, or a characteristic marbled appearance in the wood.
Reference Liyanapathiranage, P., Avin, F. A., Bonkowski, J., Beckerman, J. L., Munster, M., Hadziabdic, D., Trigiano, R. N. and Baysal-Gurel, F. 2025. Vascular streak dieback: A novel threat to redbud and other woody ornamental production in the United States. Plant Disease, 109:953-970.