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Vol. 22, No. 6, May 15, 2007

Be on the look-out for Phomopsis twig blight in blueberries Annemiek Schilder Plant Pathology


Figure 1. Blueberry twig with phomopsis twig blight symptoms. Photo Credit: Phillip Wharton, MSU.	Figure 2. Phomopsis twig blight lesions on vegetative twig.


Figure 3. Flower cluster killed by phomopsis twig blight (note necrotic stem below cluster).	Figure 4. Phomopsis twig blight lesion developing from infected bud, which was killed in the process.


Figure 5. Old infected twig: Spores are produced in bleached area on twig.	Figure 6. Cream-colored sticky spore masses exuding from fruiting bodies on twig killed by phomopsis. Photo credit: Pam Fisher, OMAF, Canada.

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