Figure 3. Vein canker discoloration and wilt in tomato pith and stem as a result of bacterial canker.
Vein canker discoloration and wilt in tomato pith and stem

Gerald Holmes, bacterial canker and wilt of tomato Clavibacter michiganensis ssp. michiganensis Symptoms, USDA, APHIS PPQ, image 1573602, Bugwood.org