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This is a list of diseases of grapes (Vitis spp.). Bacterial diseases. Glassy-winged sharpshooter, the primary carrier of PD. Bacterial diseases;
Viral grape diseases (30 P) Pages in category "Grape diseases" The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes. *
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The incubation period between infection and obvious symptoms is usually one year or more, depending on the response of the plant to both pathogen and environmental circumstances. [1] Flavescence dorée has the following symptoms: [1] leaves become yellow or red, depending on the variety; downward rolling of leaves; drying of stems and grapes
Phomopsis cane and leaf spot is a disease that causes symptoms in the common grapevine species, Vitis vinifera, in many regions of the world. [2] This disease is mainly caused by the fungal pathogen, Phomopsis viticola, and is known to affect many cultivars of table grapes, such as Thompson Seedless, Red Globe, and Flame Seedless. [3]
The disease cycle begins with the overwintering structures. The grape black rot pathogen overwinters in many parts of the grape vine, especially mummies and lesions, and is able to overwinter on the vineyard floor. [3] In fact, "Viable lesions capable of producing conidia can persist in wood for at least 2 years."
Because of its effect on grape yield, GFLV is a pathogen of commercial importance. It is transmitted via a nematode vector, Xiphinema index. [3] This nematode acquires the virus through feeding on roots of an infected plant, and passes it on in the same manner. Host and Symptoms: The host for Grapevine fanleaf virus or GFLV is the vitis species.
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