Vinews

No. 7 — July 12, 2021

Contents:

2021 Crop Outlook

Despite two late spring frost events on April 21 and 22, the 2021 crop is looking very good. The frost/freeze events mean that there likely will be shortages of some grape varietals. These include grape cultivars that do not or have limited crop production from secondary buds such as Concord, Catawba, Norton, and Chardonel.

I have had some people contact me looking for grapes and so the Grape Exchange is up and running. If you have grapes for sale, please contact Karissa King to get your grapes listed (see below).


Grape Exchange

The Grape Exchange on the Grape and Wine Institutes web page will begin to take listings of grapes for sale on Friday, July 16, 2021.

Please submit your Grape Exchange listing to Karissa King at kingkari@missouri.edu. Please submit the following information: varietal, tons, and contact information.

The Grape and Wine Institute also has an Equipment Exchange that includes equipment in the vineyard and winery. These items can also be submitted to Karissa King as above. Please submit the following information: equipment type, description, cost, and contact information.


Cumulative Growing Degree Days (Base 50) for the Seven Grape Growing Regions of Missouri from April 1 to July 12, 2021

Region Location by County Growing Degree Days1
2021 2020 30-year Average
Augusta St. Charles 1690 1643 1725
Hermann Gasconade 1583 1577 1651
Ozark Highland Phelps 1664 1655 1772
Ozark Mountain Lawrence 1664 1672 1754
Southeast Ste. Genevieve 1685 1674 1788
Central
Boone 1817 1682 1692
Western Ray 1602 1625 1629

1 Growing degree days at base 50 from April 1 to July 12, 2021. Data compiled from Useful and Useable at https://mrcc.illinois.edu/U2U/gdd/. Click on link below to determine growing degree days in your area.

To determine the number of growing degree days accumulated in your area since April 1, use this tool.

Please scout your vineyards on a regularly scheduled basis in an effort to manage problem pests. This report contains information on scouting reports from specific locations and may not reflect pest problems in your vineyard. If you would like more information on IPM in grapes, please contact Dean Volenberg at 573-882-0476 or 573-473-0374 (mobile) or volenbergd@missouri.edu