Grape Vines

Grapevines Have These Little Tiny Like Droplets All Over

Davo added on June 5, 2015 | Answered

My grapevines have these little tiny like droplets all over. They look like little crystal balls. What are they? These are Red Table grapes growing in San Jose, California.

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Certified GKH Gardening Expert
Answered on June 5, 2015

These are referred to as 'Pearl Glands'.
They are comprised of sugars and proteins from the grapevine and serve as a food source for ants, which in turn is beneficial to the plants.

Do not spray to rid the plant of these.

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