In Wisconsin, mature leaf petiole is the most common tissue used to assess the vines nutritional status. There are two recommended timing for petiole sampling, […]

At the West Madison Agricultural Research Station (WMARS) in Madison, WI, grapevine development has reached E-L* stage 35 (“Berries begin to color and enlarge”). At […]

A few large storms blew through this past week, with minor reports of hail. Otherwise, it has been warm and humid. Tart cherry harvest is […]

This week, the scouting at the West Madison Research Station (WMARS) vineyard occurred on 7/29/19. Grape phylloxera galls continue to be observed on most cultivars, […]

Wasps are starting to show up, though they seem to be delayed from previous years, likely due to the cold and wet spring we experienced. […]

At the West Madison Agricultural Research Station (WMARS) in Madison, WI, shoot development across most cultivars has reached E-L* stage 33 (“Berries still hard and […]

Dear Fruit Grower Community, By the time you read this, I will have retired from my 24-year career in fruit pathology at UW-Madison. As I […]

Cluster-zone leaf removal is a very effective practice to open up the canopy and increase the exposure of clusters to sunlight and airflow.  What are […]

Japanese beetles (JB; Figure 1) started to emerge about 2 weeks ago, probably about a week later than in the past couple of years. As […]

At the West Madison Agricultural Research Station (WMARS) in Madison, WI, shoot development across most cultivars’ buds were in E-L* stage 31 (“Berries pea-size; 7 […]