Grapevine Decline Research
The Pennsylvania State University Department of Plant Pathology
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Grapevine Decline
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Fungal
Bacterial or Viral
Insect
Black Measles
Tomato Ringspot Virus
Phylloxera
Black Rot
Crown Gall
Grape Berry Moth
Botrytis
Downy Mildew
Petri Disease
Phomopsis
Powdery Mildew
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