Grape IPM Scouting Reports
MSU’s Integrated Pest Management (IPM) scouting reports combine results from the grape entomology and pathology programs based on campus, and the grape extension program in northwest Michigan. Staff visit multiple vineyards in southwest and northwest Michigan checking growth stages, monitoring insect traps and sampling leaves and clusters. Their reports are posted on Wednesdays every other week throughout the growing season. Additional reports are added as specific issues need to be addressed.
The free scouting reports are available via email through our e-newsletter, MSU Exension News for the Grape & Wine Industry. If you are not already receiving MSU Extension News, you can sign up by entering your email address here: msue.msu.edu/newsletters. After entering your email address, scroll down the list and click the box to select “Grape & Wine industry.”
Published on October 9, 2019
Most grapes are harvested in southwest Michigan and wine grape harvest is underway in northwest Michigan. Weather delays have been altering harvest windows and we are noticing benefits in reflective strips in vineyards.
Published on September 11, 2019
Grapes are past veraison and the berries are ripening throughout Michigan. We are approaching harvest for many varieties. There is high disease and insect pressure throughout many vineyards.
Published on August 28, 2019
Grape clusters are ripening across Michigan, so prepare for harvest. The earliest cultivars are starting harvest this week, while some have a long way to go.
Published on August 14, 2019
Veraison signals transition to preparing vineyards for the 2019 harvest. Scout your vineyards to help ensure good fruit quality.
Published on July 3, 2019
Target dates for grape berry moth controls are approaching and there is significant downy disease pressure in southwest Michigan vineyards.