Every year we sample berries and track ripening levels by measuring Brix, TA, and ph to determine optimum harvest time. Below are graphs showing the […]

This year we started an exciting new project to evaluate several seedless table grape cultivars and some new selection from the UMN cold climate grape […]

There are two recommended timing for petiole sampling, at bloom, or now during veraison. Here are some brief recommendations to collect the sample: Divide the […]

While walking through your vineyard, you might notice yellow spotting on leaves (Figure 1) and we’ve begun to see it in the vineyards at the […]

There has been some discussion going on among growers about unexpected cordon die-off, especially given that this past winter was not particularly cold, and we […]

At this time, most vineyards are in bloom with specific grape varieties being at different stages of bloom. Bloom in grape (Figure 1) is somewhat […]

After last week’s extremely warm weather, grapevines got enough heat to break bud and we are already seeing 2 to 3 inches of growth on […]

Welcome back to the Wisconsin Fruit Newsletter! As we enter another growing season, I’ve received several inquiries about making lime sulfur applications to dormant vines […]

As we enter February, our thoughts begin to think of the warm and sunny days ahead this spring. Before we know it, May will be […]

Case study. In mid-July of this year, I received a call from a grape grower about symptoms of decline in several Marquette vines. The vines […]