Latest Grape News and Resources

2024 Wisconsin Vineyard Update: Pre-Bloom Disease Control
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May 16th
20240516

2024 Wisconsin Vineyard Update: Pre-Bloom Disease Control

By Leslie Holland

As shoots begin to elongate in many Wisconsin vineyards, we have seen several Phomopsis and black rot infection events across the state; check out recorded […]

Petiole Sampling for Determining Fertilization Needs in Cold Climate Grapes
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May 16th
20240516

Petiole Sampling for Determining Fertilization Needs in Cold Climate Grapes

By Amaya Atucha

Assessing the nutritional status of your grapevines through mature leaf petiole sampling is essential for maintaining vineyard health and productivity. Here’s how to effectively sample […]

Vineyard Scouting Report: May 13, 2024
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May 16th
20240516

Vineyard Scouting Report: May 13, 2024

By Courtney C Meeks, Amaya Atucha, Leslie Holland

Hello grape growers, it’s officially May, and with it, the anticipation of the season is in full swing! Phenology At the West Madison Agricultural Research […]

Vineyard Scouting Report: April 30, 2024
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May 2nd
20240502

Vineyard Scouting Report: April 30, 2024

By Courtney C Meeks, Leslie Holland, Amaya Atucha, Christelle Guédot

Hello grape growers, I’m excited to share grape scouting updates with you again this year through the Wisconsin Fruit Newsletter. I’m Courtney C Meeks, a […]

Fruit Phenology Update April 26, 2024
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Apr 26th
20240426

Fruit Phenology Update April 26, 2024

By Amaya Atucha

This past week, we have experienced several frost events. On 4/20 and 4/21, temperatures across the state dropped to 25˚ F in central and northern […]

Fruit Phenology Update April 11, 2024
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Apr 12th
20240412

Fruit Phenology Update April 11, 2024

By Amaya Atucha and Christelle Guédot

This week we have experienced much warmer temperatures than the last 2 weeks, with highs in the mid 60s and lows in the mid 40s […]

Strategies To Delay Bud Break in Grapes
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Mar 1st
20240301

Strategies To Delay Bud Break in Grapes

By Amaya Atucha

The overall mild winter and warm temperatures we have experienced in the last 2 weeks will certainly result in earlier bud break than previous years. […]

Recent Rains Bring Late Season Cluster Rots to Wisconsin Vineyards
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Oct 5th
20231005

Recent Rains Bring Late Season Cluster Rots to Wisconsin Vineyards

By Courtney Cameron and Leslie Holland

With the recent rains, we are seeing and hearing about increased reports of gray mold (Botrytis bunch rot) and sour rot. Both diseases are considered […]

Vineyard Scouting Report: October 2, 2023
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Oct 5th
20231005

Vineyard Scouting Report: October 2, 2023

By Courtney Cameron, Beth Workmaster, Leslie Holland, Christelle Guedot, Amaya Atucha

Phenology Petite Pearl was harvested last week. This levels on Marquette and Frontenac, which is planned to be harvested Thursday and Friday this week. By […]

Vineyard Scouting Report: September 18, 2023
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Sep 21st
20230921

Vineyard Scouting Report: September 18, 2023

By Courtney Cameron, Beth Workmaster, Leslie Holland, Christelle Guedot, Amaya Atucha

Phenology We are anxiously awaiting harvest for our last three cultivars at WMARS: Frontenac, Marquette, and Petite Pearl. At the West Madison Agricultural Research Station […]