Tag: Grapes
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Posted on June 5, 2020
Plant Disease Diagnostic Clinic Update June 5, 2020
The PDDC is now once again accepting physical samples for diagnosis, but due to COVID-19, only with limited hours and limited sample processing capacity. Click […]
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Posted on May 29, 2020
Grape Scouting Report: First Grape Phylloxera Galls and Grape Plume Moth Larvae
Scouting of the grapes at the West Madison Research Station (WMARS) vineyard on 5/27/20 showed the presence of a few grape phylloxera galls (Fig. 1) […]
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Posted on May 28, 2020
Cold Climate Grape Cultivar Developmental Stages: May 27, 2020
Phenology At the West Madison Agricultural Research Station (WMARS) in Madison, WI, shoot development ranged between E-L* stage 9 (“2 to 3 leaves separated”) on […]
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Posted on May 15, 2020
Cold Climate Grape Cultivar Developmental Stages: May 13, 2020
At the West Madison Agricultural Research Station (WMARS) in Madison, WI, shoot development ranged between E-L* stage 3 (“Wooly bud without green showing”) on Petite […]
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Posted on May 14, 2020
What to Do Now in the Vineyard: Fungicides and Planting Vines
This Wednesday, we partnered with University of Minnesota extension specialists for a great webinar entitled “Fungicides and Planting Vines”, which is now available on Youtube. Annie […]
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Grape Insect Scouting: Keep Watching for Flea Beetle and Cutworm Damage
Really? Spring is here? After the snow and the freezing temperatures this past week it is hard to believe but this is spring in Wisconsin! […]
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Posted on April 12, 2020
Grape Bud Cold Hardiness Report – colder weather forecasted for next week
As spring progress, we have observed a significant loss of cold hardiness in grape buds mostly in the last two weeks. Next week will bring […]
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Posted on February 19, 2020
Grape Bud Cold Hardiness Report
Bud cold hardiness refers to the ability of buds to survive cold temperatures during the dormant season. To monitor changes in bud cold hardiness, we […]
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Posted on August 30, 2019
Grape variety developmental stages and fruit maturity evaluation: August 29, 2019
At the West Madison Agricultural Research Station (WMARS) in Madison, WI, grapevine development has reached E-L* stage 36 (“Berries with intermediate sugar values”). Currently, vines […]
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Posted on August 16, 2019
Grape variety developmental stages and fruit maturity evaluation: August 16, 2019
At the West Madison Agricultural Research Station (WMARS) in Madison, WI, grapevine development has reached E-L* stage 35 (“Berries begin to color and enlarge”). At […]