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IPM Reports / Grape and Wine Institute / University of Missouri

IPM Reports

Survey results

A Survey of Viruses Found in Grapevine Cultivars Grown in Missouri

Frost Reports

Missouri Report on Damage to Grapevines from Frost/Freeze Events During April through May 11, 2020

Vinews: Viticulture Information News

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, contact Dean Volenberg at 573-882-0476 or volenbergd@missouri.edu.

No. 14 — Sept. 7, 2020

    Contents: Time To Think About The 2021 Grape Growing Season; Know the Difference Between Potassium Bicarbonate and Phosphorous Acid Fungicides; Cumulative Growing Degree Days (Base 50) for the Seven Grape Growing Regions of Missouri from April 1 to Sept. 5, 2020; Weather Outlook

No. 13 — Aug. 31, 2020

    Contents: Norton and Disease: Resistance, Tolerance and Susceptibility; Pesticide News Updates; Update on Mealybugs from Missouri Vineyards; Cumulative Growing Degree Days (Base 50) for the Seven Grape Growing Regions of Missouri from April 1 to Aug. 29, 2020; Weather Outlook

No. 12 — Aug. 24, 2020

    Contents: Apoplexy; Grape Exchange and Equipement Exchange; Cumulative Growing Degree Days (Base 50) for the Seven Grape Growing Regions of Missouri from April 1 to Aug. 22, 2020; Weather Outlook

No. 11 — Aug. 10, 2020

    Contents: Crown Gall; Grape Exchange and Equipement Exchange; ISU/UMN Joint Research and Winemaking Webinar Series; Cumulative Growing Degree Days for the Seven Grape Growing Regions of Missouri from April 1 to Aug. 8, 2020; Weather Outlook

No. 10 — July 13, 2020

    Contents: Bitter Rot and Sour Rot; Grape Exchange and Equipement Exchange; ISU/UMN Joint Research and Winemaking Webinar Series; Survey for April 2020 Frost Freeze Vineyard Damage; Dicamba Cancellation Order: What Does it Mean for Grape Growers?; Cumulative Growing Degree Days for the Seven Grape Growing Regions of Missouri from April 1 to July 11, 2020; Weather Outlook

No. 9 — July 6, 2020 (PDF)

    Contents: Berry Cracking; Birds Eye Rot Caused by Anthracnose Elsinoe Ampelina; ISU/UMN Joint Research and Winemaking Webinar Series; Survey for April 2020 Frost Freeze Vineyard Damage; Japanese Beetles Update; Cumulative Growing Degree Days for the Seven Grape Growing Regions of Missouri from April 1 to July 4, 2020; Weather Outlook

No. 8 — June 22, 2020 (PDF)

    Contents: As Temperatures Rise and the Pest Complex Increases, Be Aware of Tank Mixes; Some Grape Virus Combinations Appear to Be More Detrimental to Grapevines; Survey for April 2020 Frost Freeze Vineyard Damage; Japanese Beetles Update; Cumulative Growing Degree Days for the Seven Grape Growing Regions of Missouri from April 1 to June 20, 2020; Weather Outlook

No. 7 — June 15, 2020 (PDF)

    Contents: Who Are the Vectors of Grapevine Leafroll Disease?; Survey for April 2020 Frost Freeze Vineyard Damage; First Report of Japanese Beetles for the 2020 Season; Cumulative Growing Degree Days for the Seven Grape Growing Regions of Missouri from April 1 to June 13, 2020; Weather Outlook

No. 6 — June 1, 2020

    Contents: Critical Period of Disease Management; First Report of Japanese Beetles for the 2020 Season; Cumulative Growing Degree Days for the Seven Grape Growing Regions of Missouri from April 1 to May 30, 2020; Weather Outlook

No. 5 — May 25, 2020

    Contents: Update on the Frost Freeze Impact; Managing Vineyards That Have Frost Freeze Damage; Cumulative Growing Degree Days for the Seven Grape Growing Regions of Missouri from April 1 to May 23, 2020; Weather Outlook

No. 4 — May 18, 2020

    Contents: Phomopsis Viticola; Anthracnose Elsinoe ampelina; Cumulative Growing Degree Days for the Seven Grape Growing Regions of Missouri from April 1 to May 16, 2020; Weather Outlook

No. 3 — May 11, 2020

    Contents: Nitrogen and Grapevines; Be Prepared for Petiole Sampling; Cumulative Growing Degree Days for the Seven Grape Growing Regions of Missouri from April 1 to May 9, 2020; Weather Outlook

No. 2 — May 4, 2020

    Contents: Loss of Some Primary Buds to Frost/Freeze Will Result in Asynchronous Bloom; Cool Wet Conditions Prevail in Forecasts; Start Planning Immediate Pre-bloom Through Bloom Protective Fungicide Programs; Commonly Grown Grape Cultivars in Missouri That Are Moderately or Highly Susceptible to Powdery Mildew Erysiphe; Grape Berry Moth; Cumulative Growing Degree Days (Base 50) for the Seven Grape Growing Regions of Missouri from April 1 to May 1, 2020

No. 1 — April 27, 2020

    Contents: Phomopsis Cane and Leaf Spot; Frost Freeze Events Result in Damage to Some Missouri Vineyards; Be Aware of Herbicide Drift; Tips to Minimize Soil Compaction During Spring Spraying Events; Cumulative Growing Degree Days for the Seven Grape Growing Regions of Missouri from April 1 to April 24, 2020

Past 2019 issues

Grape Exchange Announcement

Announcement for Missouri Grape Growers Association Field Day with Richard Smart

No. 18 — Sept. 9, 2019

    Contents: Alternative Weed Control Products; Grape Exchange; Survey of Viruses Found in Grapevine Cultivars in Missouri; Cumulative Growing Degree Days for the Seven Grape Growing Regions of Missouri from April 1 to Sept. 9, 2018

No. 17 — Aug. 19, 2019

    Contents: What Have We Learned from Richard Smart's Visit to Missouri in Late June 2019; Grape Exchange; Survey of Viruses Found in Grapevine Cultivars in Missouri; Cumulative Growing Degree Days for the Seven Grape Growing Regions of Missouri from April 1 to Aug. 20, 2018

No. 16 — July 24, 2019

No. 15 — July 15, 2019

No. 14 — July 1, 2019

No. 13 — June 17, 2019

No. 12 — June 10, 2019

No. 11 — June 3, 2019

No. 10 — May 27, 2019

No. 9 — May 20, 2019

No. 8 — May 13, 2019

No. 7 — May 6, 2019

No. 6 — April 29, 2019

No. 5 — April 22, 2019

No. 4 — April 15, 2019

No. 3 — April 1, 2019

No. 2 — March 25, 2019

No. 1 — March 18, 2019

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