| 5487920 |
bacterial leaf scorch |
Xylella fastidiosa |
Vitis vinifera 'Chardonnay'
Failure of green shoot tissue to mature normally to mature, dark brown appearance. |
| 5487916 |
bacterial leaf scorch |
Xylella fastidiosa |
Vitis vinifera 'Chardonnay'
Leaf scorch and chlorosis. This sample was co-diseased with Downy Mildew. |
| 5487917 |
bacterial leaf scorch |
Xylella fastidiosa |
Vitis vinifera 'Chardonnay'
Leaf scorch and chlorosis
This sample was co-diseased with Downy Mildew |
| 5487918 |
bacterial leaf scorch |
Xylella fastidiosa |
Vitis vinifera 'Chardonnay'
Green tissue ("green island") on shoot adjacent to normally matured wood and "matchstick" petiole. |
| 5487919 |
bacterial leaf scorch |
Xylella fastidiosa |
Vitis vinifera 'Chardonnay'
Failure of green shoot tissue to mature normally to mature, dark brown appearance. |
| 5487921 |
bacterial leaf scorch |
Xylella fastidiosa |
Vitis vinifera 'Chardonnay'
Green tissue ("green island")on shoot adjacent to normally matured wood and "matchstick" petiole. |
| 0162044 |
bacterial leaf scorch |
Xylella fastidiosa |
Pierce's disease of grapevine. Spring symptoms in cultivar Chardonnay (healthy leaf on the left). |
| 0162043 |
bacterial leaf scorch |
Xylella fastidiosa |
Pierce's disease of grapevine. Symptoms in cultivar Chardonnay (under moisture stress). |
| 5407863 |
bacterial leaf scorch |
Xylella fastidiosa |
Brown, irregular "islands" of necrosis on young grape vines infected with Xylella fastidiosa (Pierce's disease) |
| 0660055 |
bacterial leaf scorch |
Xylella fastidiosa |
Uneven ripening of grapevine shoots, a very characteristic symptom of Pierce's disease, due to Xylella fastidiosa |
| 0660054 |
bacterial leaf scorch |
Xylella fastidiosa |
Yellowing and desiccation of grapevine leaves, and wilting of bunches, due to Xylella fastidiosa in the Napa Valley, California (US) |