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HS1360: Recommendations for Control and Mitigation of Laurel Wilt and Ambrosia Beetle Vectors in Commercial Avocado Groves in Florida

Figure 2. The visible external symptoms of laurel wilt disease begin as green-leaf wilting (A), typically in one section of the tree (B). Frass straws from AB boring may be evident (C), and the sapwood has blackish-brown-blue streaks (D).

Credit: J. H. Crane, UF/IFAS