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Michigan Grape Scouting Report
These crop reports include an update on crop development, insect pests and diseases being seen, and a weather outlook tailored to growers.
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Michigan grape scouting report – July 22, 2021
Published on July 22, 2021
Summer pests and diseases are here. -
Michigan grape scouting report – Sept. 9, 2020
Published on September 9, 2020
Fourth generation egglaying of grape berry moth starts this week in southwest Michigan. Sour rot is being reported around the state. -
Michigan grape scouting report – June 10, 2020
Published on June 10, 2020
Hybrid and juice grape bloom has started in southern Michigan. The warm weather has increased the number of phomopsis reports around the state. -
Michigan grape scouting report – June 2, 2021
Published on June 2, 2021
The heat from the past week helped grapes to move quickly. Shoots are lengthening throughout Michigan and clusters are becoming visible. -
MSU Extension’s grape scouting reports for 2021
Published on May 19, 2021
Michigan State University Extension will provide weekly reports of scouting efforts across the state, covering many parts of grape growing including vine phenology and horticultural updates, pest and disease management, and weather. -
Michigan grape scouting report – Aug. 11, 2021
Published on August 11, 2021
Veraison season is here. Third generation of grape berry moth is predicted to be starting in southern Michigan. -
Michigan grape scouting report – Sept. 16, 2020
Published on September 16, 2020
Harvest is starting for several hybrid and vinifera grapes in southwest Michigan. Northwest Michigan grape harvest will start soon. -
Michigan grape scouting report – Aug. 19, 2020
Published on August 19, 2020
Most grapes have completed or are starting veraison. Grape berry moth and downy mildew incidents are increasing. -
Michigan grape scouting report – July 22, 2020
Published on July 22, 2020
Summer meeting season is here. Look here for a list of upcoming grape educational events. -
Michigan grape scouting report – June 24, 2020
Published on June 24, 2020
Grape bloom has started in northern Michigan. Summer insect and disease management programs are starting in southern Michigan. -
Michigan grape scouting report – July 8, 2020
Published on July 8, 2020
Vinifera grape bloom is continuing in northern Michigan. Egglaying by the next generation of grape berry moth is expected to start soon in southwest Michigan. -
Michigan grape scouting report – Sept. 1, 2021
Published on September 1, 2021
Grape harvest is beginning in southwest Michigan. Veraison is underway further north. -
Michigan grape scouting report – July 29, 2020
Published on July 29, 2020
Early varieties are beginning veraison in southern vineyards and downy mildew is visible in unprotected fields. Egglaying by third generation grape berry moth is expected to start next week in southwest Michigan. -
Michigan grape scouting report – Sept. 2, 2020
Published on September 2, 2020
With harvest approaching, keep clusters protected from insects and rots. Watch your preharvest intervals. -
Michigan grape scouting report – Aug. 26, 2020
Published on August 26, 2020
The warm, sunny weather has allowed sugar to accumulate in fruit. In southern Michigan, harvest of some early hybrid varieties will begin in the next one to two weeks. -
Michigan grape scouting report – May 19, 2021
Published on May 19, 2021
This is the first of our weekly grape scouting reports covering the state of Michigan for 2021. Sign up to receive these reports by email. -
Michigan grape scouting report – May 26, 2021
Published on May 26, 2021
Heat from the past week helped grapes move quickly. Shoots are lengthening throughout Michigan and clusters are becoming visible. -
Michigan grape scouting report – June 30, 2021
Published on June 30, 2021
Grape berry moth egglaying will begin in southern Michigan vineyards soon. Several diseases have been found at high pressure sites. -
Michigan grape scouting report – May 27, 2020
Published on May 27, 2020
Vines are growing quickly. The warm, wet week means disease management is critical. -
Michigan grape scouting report – June 9, 2021
Published on June 9, 2021
Grape bloom has started in southern Michigan. Bloom on hybrid wine grapes and early vinifera should begin soon in northern parts of the state. Now is a critical time to control diseases.
