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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.comMy grapevine is pretty old. I trimmed it last fall. Spots have started showing up on the underside of the leaves. Can you tell me what it is and how to treat it?
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[1] https://www.gardeningknowhow.com/plant-problems/pests/pesticides: https://www.gardeningknowhow.com/plant-problems/pests/pesticides
[2] https://www.gardeningknowhow.com/edible/fruits/grapes/growing-grapevines.htm: https://www.gardeningknowhow.com/edible/fruits/grapes/growing-grapevines.htm
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1 Comment To "Spots On Grapevine"
#1 Comment By BushDoctor On 07/06/2021 @ 5:01 pm
Many sap sucking insects can cause this type of damage. Unless you catch the insect in the act, it can be hard to say which it is.
This collection of articles will help you with pest control:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides [1]
https://www.gardeningknowhow.com/edible/fruits/grapes/growing-grapevines.htm [2]