Grape Vines

Muscadine grapes

Zone 27320 | Anonymous added on July 7, 2018 | Answered

The vines are 8 years old. Have produced grapes every year but this year grapes are growing in great clusters but are falling off when green. We prune as we should. We had a lot of rain this year. There is no fungus or anything on the vines or grapes or leaves. I read all 21 pages of your posts and there is nothing like this. I didn\'t include a photo because the grapes are green and perfect.

    A.Answers to this queston: Add Answer
    Certified GKH Gardening Expert
    Answered on July 8, 2018

    There are several possible causes of premature fruit drop including:
    - too much or too little water
    - nutritional deficiency or excess (such as too much nitrogen)
    - fungal problems such as powdery mildew (look for a white haze on fruit)
    - insect feeding
    - poor pollination
    - a lack of light (grapes need full sun)
    So, there may me one or more causes. A soil test would be smart to look at the nutritional issue. Inspect the vines for insects or fungal growth. Encourage pollinators with diverse plantings.

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