Vineyard pests, problems and diseases - What's happening in the field?

What's happening in the field?

At the Missouri State Fruit Experiment Station

Vineyard pests, problems and diseases

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Vickie Baumer, as part of her internship at Missouri State for her horticulture graduate program through Texas Tech, is scouting our vineyards for symptoms and signs of pests, diseases and problems. Here are some of the photos she has taken to date.

We believe this problem to be phomopsis (fungal) leaf spot on Catawba grape.
We believe this problem to be phomopsis (fungal) leaf spot on Catawba grape collected 6/17/13.

 

Phomopsis leaf spot on Vignoles grape collected 6/17/13.
Phomopsis leaf spot on Vignoles grape collected 6/17/13.
Here is a photo of phylloxera on a Chambourcin leaf.
Here is a photo of phylloxera on a Chambourcin leaf.

 

(Suspected) Pristine fungicide injury on Concord grape.
(Suspected) Pristine fungicide injury on Concord grape collected 6/17/13.
(Suspected) Pristine fungicide injury on Norton leaf collected 6/17/13.
(Suspected) Pristine fungicide injury on Norton leaf collected 6/17/13.