In 2021, the PDDC continues with limited hours and limited sample processing capacity due to COVID-19.  Click here for the PDDC’s current submission policy.  The […]

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 […]

In 2021, the PDDC continues with limited hours and limited sample processing capacity due to COVID-19.  Click here for the PDDC’s current submission policy.  The […]

Phenology Crimson Pearl and Petite Pearl were the last cultivars harvested at the West Madison Research Station (WMARS) on September 20.  See Table 1 for […]

As fruits make their way into storage, presses, markets, and the hands of consumers, a new set of tasks must take place on the farm […]

Phenology The berries of all cultivars at West Madison Research Station (WMARS) are harvest-ripe (stage 38). See Table 1 for veraison (beginning of berry color […]

Avaunt is a not a new insecticide to Wisconsin but one that is seldom used by fruit growers in Wisconsin. With the loss of Lorsban previously discussed here, Avaunt is one alternative insecticide that can be used early season for the management of spring insects. Avaunt was […]

In 2021, the PDDC continues with limited hours and limited sample processing capacity due to COVID-19.  Click here for the PDDC’s current submission policy.  The […]

Berry Ripening Parameters for Red Wine Cultivars at WMARS Below are graphs showing the progression of the berry ripening parameters at WMARS: % total soluble […]

I have received several emails from growers regarding ranges of fruit quality parameters for cold climate grape cultivars. Several years ago, I published an extension […]