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Viticulture

Best viticulture practices: Shoot thinning

May 21, 2022 - 10:31am -- smith.12720@osu.edu

By: Maria Smith, HCS-OSU

This past week, I have received several questions on when, where, and what to shoot thin (ST), so now is the perfect time to highlight the importance of this practice. In 2017, I co-authored an in-depth article on shoot thinning with Dr. Michela Centinari at Penn State that can be used as a cited companion resource to this blog post.  

SLF Egg Masses Begin 2022 Hatch

May 14, 2022 - 11:59am -- smith.12720@osu.edu

By: Maria Smith, HCS-OSU

Finally! In the past week, the sun’s come out and so have the growing degree days (GDD). In fact, we have added 80 GDD (base 50 F) in Wooster since Monday alone. We pay so much attention to GDD because it is the primary driver of phenological development for plants. But did you know that it also determines insect lifecycles as well?

Third consecutive year... widespread spring freeze warnings are back

April 27, 2022 - 12:04pm -- smith.12720@osu.edu

By: Maria Smith, HCS-OSU

Following last weekend’s warm weather, bud break has arrived in many early varieties (e.g., Marquette, La Crescent, Itasca, Marechal Foch). These varieties are now more vulnerable to freeze and frost events since more developed shoots are progressively less tolerant of temperatures below 32 F (Figure 1, Table 1).

Effective and Efficient Spraying in Vineyards and Orchards

January 25, 2022 - 4:20pm -- smith.12720@osu.edu

A new factsheet series developed by Dr. Erdal Ozkan, our Extension State Specialist in the Department of Food, Agricultural and Biological Engineering (FABE) is now available on-line.  The series includes seven factsheets each covering a specific topic associated with effective and efficient spraying in orchards and vineyards.

2021 Year in Review

January 6, 2022 - 5:17pm -- smith.12720@osu.edu

By: Imed Dami and Diane Kinney, HCS-OSU

This article summarizes the 2021 dormant and growing seasons and the impact of weather on grape varieties grown on the research vineyard at the OSU-OARDC in Wooster, Ohio. 

Weather: Temperature

A Halloween Fright! Wasps are everywhere in the vineyard this fall

October 27, 2021 - 3:54pm -- smith.12720@osu.edu

By: Maria Smith, HCS OSU

It’s like a scene out of the 1992 classic horror movie Candyman in the vineyard this fall. Yellow jackets, hornets, bees, wasps (1; Fig. 1)… but I promise, it’s the sugar content in the grapes and not because we’re summoning a man with a hook for a hand.


Fig. 1. Bald faced hornet in Frontenac blanc, Sep 2021

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