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 […]

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 […]

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 […]

Phenology At the West Madison Agricultural Research Station (WMARS) in Madison, WI, shoots from primary buds average around E-L* 38 (Berries harvest ripe). Brianna was […]

Phenology At the West Madison Agricultural Research Station (WMARS) in Madison, WI, shoots from primary buds average around E-L* 36 (Berries with intermediate sugar levels) […]

Cluster thinning is a widely used vineyard management technique aimed at enhancing grape and wine quality. However, the outcomes of cluster thinning vary across studies, […]

Phenology At the West Madison Agricultural Research Station (WMARS) in Madison, WI, shoots from primary buds average around E-L* 35 (Berries begin to color and […]

Many southern Wisconsin vineyards are entering veraison (fruit ripening), especially on early varieties. This is a critical stage for the grapes and for disease management. […]

Phenology At the West Madison Agricultural Research Station (WMARS) in Madison, WI, shoots from primary buds average around E-L* stage 33 (Berries still hard and […]

I’m receiving reports of powdery mildew observations in Wisconsin vineyards. While we do not often associate drought conditions with grape diseases, powdery mildew is an […]