With so much attention paid to climate change, the 2022 Unified Wine and Grape Symposium this January has appropriately recruited the United States Department of Agriculture (USDA) climate director to open the prestige three-day event. As Unified’s Tuesday luncheon keynote speaker, Dr. Steven Ostoja, director of the USDA California Climate Hub, will offer his  insights into how a changing climate …

Washington is under a state of emergency, with more than 600 wildfires reported already this year. That’s about double the normal rate, according to the state Department of Natural Resources. Where there’s fire, there’s smoke that can expose outdoor workers in construction, agriculture, and other jobs to health risks from breathing particulate matter in the air. To help these and other …

Michigan State University — Last week began cool with highs in the low 60s and lows in the 40s. A storm system entered Michigan on Thursday, bringing rain and very humid conditions. Northern grape-growing areas also saw high temperatures in the mid-70s and lows in the lower 60s. Southern areas were 5-10 degrees warmer. The heaviest rains came on Friday …

Many wine lovers know that a hint of smoky flavors in Zinfandel or Pinot Noir are the perfect complement with grilled meats. They may also be familiar with the phrase, “Stressed vines make the best wines.” But what if those smoky overtones go overboard as the grapes are exposed to destructive wildfires? And what if those stressed vines are the …

Air temperatures fell well below freezing throughout many areas of Missouri last Wednesday, April 21 (Figure 2) and Thursday, April 22 (Figure 3). A grape grower in Macon County, MO reported 21 °F on Thursday morning. The Marechal Foch shoots were completely damaged by these low temperatures the grower reported. Other growers have reported damage from the frost/freeze events. After a couple more days pass, …

Grapevines are in various stages of early growth throughout Indiana, ranging from bud swell to 2-4 in shoot growth. A cold weather event came across the state from 4/20-4/22 bringing temperatures as low as 27 F. Damage is still being assessed, but if significant primary bud damage occurs we will expect to see emergence of secondary shoots. With rising temperatures …

The recent extreme cold–temperature events resulting from the “Polar–vortex” should have you thinking about grape bud injury. A brief primer on the anatomy of a grape bud will help you further understand the evaluation process. The primary bud is in the center, the secondary bud is above the petiole leaf scar and the tertiary bud is on the opposite side …