Category: Grapes
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Posted on September 12, 2019
Grape Scouting Report: Not much to report but be on the lookout for multicolored Asian lady beetles and wasps
Scouting at the West Madison Research Station (WMARS) vineyard occurred on 9/10/19 and there was no insect to report. No insecticide was applied on the […]
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Posted on September 11, 2019
Grape Variety Fruit Maturity Evaluation – September 11, 2019
The charts below present fruit quality data Brix and TA from berries sampled from the West Madison Agricultural Research Station (WMARS) in Madison, WI, as […]
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Posted on September 10, 2019
Door County Fruit Crop Pest Report, September 9, 2019
As we approach harvest, make sure to double check the preharvest interval for any product you might use! Insect and Disease Control Apple Disease Pressure – […]
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Posted on September 4, 2019
Grape Variety Fruit Maturity Evaluation – September 4, 2019
The charts below present fruit quality data Brix and TA from berries sampled from the West Madison Agricultural Research Station (WMARS) in Madison, WI, as […]
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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 27, 2019
Door County Fruit Crop Pest Report- August 26, 2019
Conditions have been dry and we got some much-needed rain today. We are still behind normal for degree days, and apple harvest will also likely […]
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Development of new cold-hardy seedless table, juice, and raisin grape cultivars
In 2012, table grape breeding was added to the mix of breeding programs on the UW-River Falls campus. This was due to the fact that […]
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UW-Madison/Extension Plant Disease Diagnostic Clinic Update
The PDDC receives samples of many plant and soil samples from around the state. The following diseases/disorders have been identified at the PDDC from August […]
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Posted on August 16, 2019
Grape scouting report: Japanese beetle and grape phylloxera continue to be present
The scouting at the West Madison Research Station (WMARS) vineyard occurred on 8/12/19. Grape phylloxera galls continue to be observed on all cultivars, including Brianna, […]
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Rainfastness characteristics of insecticides
Precipitation can impact the performance of insecticides, but some compounds resist wash-off. There are several critical factors that influence impact of precipitation on a pesticide’s […]