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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;
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."
When a mealybug feeds on an infected grapevine for at least fifteen minutes, they can spread the disease by feeding on healthy grapevines. The disease remains in their system for 48 hours or until they molt (shed). Vector control is the most commonly used way to prevent the spread of GVA. Vector control uses methods to eradicate the pests that ...
Treating black leaf disease can be achieved in many ways. Some include removing each affected leaf of any yellow or black color. If the infection has spread throughout a larger area, it may be best to remove the affected limb of the plant to reduce further spread. Fungicides may be used as treatment. There are a number of remedies used to ...
Grapevine leafroll-associated virus (GLRaV) is a name for a group of viruses that infect grapevine. [1]Obscure mealybugs (Pseudococcus viburni) feed on the phloem of vines and woody-stemmed plants, especially pear and apple trees and grape vines. [2]
The main viticultural production areas in the Republic of North Macedonia were surveyed in 2006/2007/2008 for the presence of grapevine yellows. PCR and RFLP analyses were used to detect and identify phytoplasmas infecting grapevines. Only phytoplasmas associated with “bois noir” disease (ribosomal subgroup 16SrXII-A or stolbur) were ...
It has been proposed by Antoine Caudwell, a French agriculturist who was a pioneer in research on grapevine phytoplasma diseases such as flavescence dorée, to treat plant material with hot water since 1966. [8] When later works proved the effectiveness of the hot water treatment it was recognized in EU Directive and some other organizations. [5]
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