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Phomopsis Cane & Leaf Spot
Abstract
Phomopsis cane and leaf spot, once known as “dead arm,” is a common disease in most regions of the world where viticulture is practiced. Severely infected leaves are misshapen, yellow, and fall from the vine prematurely. Infected rachises are brittle so that portions of the cluster may fall off before harvest. Infected fruit are discolored and can drop to the ground before maturity. When incidence of the disease is high, crop losses of 10 to 40 percent can occur.
Description
NYS IPM Type: Fruits IPM Fact Sheet
Date Issued
1991Publisher
New York State IPM Program
Subject
Agricultural IPM; Fruits; Grapes
Previously Published As
retrieved from: http://nysipm.cornell.edu/factsheets/grapes/diseases/phomopsis.pdf
Type
fact sheet