Search results
Results from the WOW.Com Content Network
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]
This is a list of diseases of grapes (Vitis spp.). Bacterial diseases. Glassy-winged sharpshooter, the primary carrier of PD. Bacterial diseases;
Allorhizobium vitis is a plant pathogen that infects grapevines.The species is best known for causing a tumor known as crown gall disease. [5] One of the virulent strains, A. vitis S4, is responsible both for crown gall on grapevines and for inducing a hypersensitive response in other plant species. [6]
Cultural practices and fungicide use are two methods that grape growers use to reduce P. tetraspora.Removing leaf litter, increasing air circulation over the soil surface and canopy space, and removal of susceptible hosts from the immediate environment are some cultural practices that can help control P. tetraspora development.
The disease affects grapes worldwide, leaving all agricultural grape businesses at risk of Uncinula necator. Powdery mildew of grape affects the size of the vines, the total yield of fruit, as well as affecting the taste of wine produced from infected grapes. The disease can also cause the blossoms to fall and result in failure to produce fruit ...
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."
Specifically, E. ampelina affects blackberries, raspberries, mountain grapes, fox or concord grapes, and the European wine grape. Anthracnose diseases can cause disease on a variety of plants, but the primary host for E. ampelina, is grape. [3] Anthracnose on grape presents itself as lesions on shoots, leaves, and berries.
Flavescence dorée (from French "Flavescence" : yellowing and "dorée" : golden) is one of the most important and damaging phytoplasma diseases of the vine with the potential to threaten vineyards. [1] The bacterial agent has recently been named Candidatus Phytoplasma vitis, and its vector is the leafhopper, Scaphoideus titanus.