Phenology At the West Madison Agricultural Research Station (WMARS) in Madison, WI, shoots from primary buds average around E-L* stage 7 (First leaf separated from […]

After the cold weather events we had on the 2nd and 3rd week of April, many grape growers in the southern and central part of […]

As we head into the grape growing season in Wisconsin, I want to share information on some newer fungicidal products for disease control. All products […]

Phenology At the West Madison Agricultural Research Station (WMARS) in Madison, WI, buds average around E-L* stage 2 (bud scale opening) on Petite Pearl and […]

The warm weather we experienced a couple of weeks ago accelerated the loss of cold hardiness of flower buds in many of our fruit crops, […]

In 2023, the PDDC continues to provide diagnoses through examination of digital photographs, as well as physical samples.  Click here for the PDDC’s current submission […]

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 […]

As harvest is underway in Wisconsin vineyards many may be observing (or smelling) some rotted fruits on the vine. This article provides a brief overview […]

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 […]

Grapes Variety Brix pH TA Marquette 19.5 3.38 27.32 Apples Variety Seed Color Starch Brix Pioneer Mac (McIntosh) Light brown tips 2.4 10.4 Mollie’s Delicious […]