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An important update from Christelle Guédot. We thank her for all of her dedication and hard work as co-founder of the Wisconsin Fruit News newsletter fruit.wisc.edu/2024/07/18/chr…

Check out the Holland lab at #PlantHealth2024 !!! Presenting for the team - Ana M. Vázquez-Catoni, M.Sc., Evan Lozano and Fabian Rodriguez Bonilla.

Our new paper is out in its typeset format! Wisconsin Fruit News UW Plant and Agroecosystem Sciences UW–Madison CALS academic.oup.com/jxb/advance-ar…

Sunburn in apples is a significant issue for apple growers, leading to considerable economic losses and affecting fruit quality. This condition results from excessive exposure to sunlight, causing damage to the apple’s skin and underlying tissues. fruit.wisc.edu/2024/08/01/und…

Dear Wisconsin grape growers: Courtney Meeks (Courtney C Meeks) is collecting powdery mildew and downy mildew samples for free fungicide resistance testing. Learn more here! fruit.wisc.edu/2024/08/29/fre…

This week we discuss the ever-present smartweed family: Water Smartweed, Pennsylvania Smartweed, Ladysthumb Smartweed, and Arrowleaf Tearthumb. fruit.wisc.edu/2024/09/03/wee…

I’ve seen several reports of blister spot in apple orchards this season, which aligns with the particularly wet conditions we’ve experienced. To address this, I am providing some information on blister spot in this article. fruit.wisc.edu/2024/09/12/wis…

As we approach harvest, many Wisconsin grape growers have reported uneven ripening across clusters and even within individual clusters. This issue presents significant challenges in managing harvest timing and ensuring consistent fruit quality. fruit.wisc.edu/2024/09/12/und…

Dear Wisconsin Grape Growers – Many of you are already aware that the EPA is considering delisting mancozeb fungicide for use in grape. This could have a significant impact on the grape industry. fruit.wisc.edu/2024/09/12/wi-…

Update: The comment period has been extended to October 16.

I had my final chat with Chris on September 9. This year’s apple harvest is running ahead of schedule by about 1-2 weeks at Blue Roof Orchard, with roughly half of the apples already picked. fruit.wisc.edu/2024/09/19/not…

Fall in the UW Fruit Crops Pathology lab usually means 2 things: we had a great time during our annual corn maze trip (the competition was fierce this year!) and there are plenty of rotted fruits to process! Wisconsin Fruit News SAME Project

Jason P. Londo🏳️‍🌈🍇🍎shiversherlock.bsky.social and I will be talking about cold hardiness things in a webinar tomorrow! If you're interested, you can register here: uwmadison.zoom.us/meeting/regist…

A huge thank you to Jason P. Londo🏳️‍🌈🍇🍎shiversherlock.bsky.social and Al Kovaleski for their presentation on Understanding Cold Hardiness and Budbreak in Grapevines this week. If you missed the live webinar, the recording is now available youtube.com/watch?v=HeJvxd…

Hailstorms during the bloom and petal fall stages can significantly increase the risk of fire blight in apple orchards. The physical damage caused by hail creates entry points for the fire blight pathogen. fruit.wisc.edu/2025/05/16/wis…