color change and bug

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berrycrush

berrycrush

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Happy 4th! Here are two pictures of some of my Cabernet Sauvignon clusters, why are some berries changing color and what is that bug doing there?

19411557342_78b12ac2dd_c.jpg

18797173933_a4ca4bc1d7_c.jpg
 
Last edited:
That i a stinkbug and it is feeding on your grapes which is causing them to change color and some of them rot. I can't tell if it is a brown marmorated stinkbug or not from the picture, but if it is they can be devastating on your crop. Pick them off and kill all of them you see.
 

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