Tag: botrytis
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Spray Strategies for Strawberry Disease Control in South Carolina

Guido Schnabel, Extension Plant Pathologist Disease management is essential for growing high-quality strawberries in plasticulture. While Botrytis fruit rot (BFR) is a disease you can expect every year, Anthracnose fruit rot (AFR) and the more recently introduced Neopestalotiopsis fruit and crown rot (Neo-P) may or may not appear (Fig. 1). This largely depends on how…
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Biologicals and Their General Performance Against Strawberry Diseases

Johanna Wesche and Guido Schnabel, Clemson University “Do biologicals work?” That is a frequently asked question coming not only from strawberry growers, especially in light of increasing resistance issues with many of the conventional fungicides and the fungicide insensitivity of Neopestalotiopis sp. In our recent article, “Biologicals Made Easy: Grouping and Understanding Biological Fungicides,” we…
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Efficacy Trials with Biofungicide Howler EVO against Strawberry Diseases

By Guido Schnabel, Jeffrey A. Hopkins, and Johanna Wesche Recently, the article Fungus-Based Biological Control Agents: How Useful Are They for Strawberry Disease Management? was published. The article reported our first experience with yeast-based biological control agents (BCA) against Botrytis fruit rot (BFR) and Anthracnose fruit rot (AFR) of strawberry. The trials were conducted at the…
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Fungus-Based Biological Control Agents: How Useful Are They for Strawberry Disease Management?

From Guido Schnabel, Jeffrey A. Hopkins, Jim Faust, and William Gura Biological control agents (BCAs) are being promoted for disease management in fruits, nuts, and vegetables but very little data is available about their efficacy especially when it comes to preharvest field performance. The Schnabel lab has investigated yeast-like fungi and true yeast BCAs, namely…
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Question of the Week – Grey Mold

This week, the question was: What is the fuzzy, grey stuff developing on the dead bloom? This is grey mold (Botrytis cinerea), the number 1 threat to strawberry yields in the southeast. As the weather begins to warm, we will start to see grey mold in every strawberry field and growers need to have fungicides…
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Weekly Field Update – 1/18/22

We hope everyone had a great holiday season and that 2022 is off to a good start! Remember to keep an eye on the Upcoming Events tab over the next couple of months. We have lots of fruit and vegetable-related meetings coming up. This week we have a couple in-person meetings and a virtual tomato…
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Weekly Field Update – 3/22/21
Join us this Wednesday (3/24/21) at 12:30 pm for a discussion on diamondback moth management in Brassica crops. It will be a relatively short meeting, lasting around 45 minutes, so tune in while you eat your lunch. Click here to register. Coastal Zack Snipes reports, “We got some needed rain but we got a lot…
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Weekly Field Update – 3/15/21
If you haven’t already filled out the Clemson Agribusiness Team’s COVID-19 Ag Impacts Survey, please take a minute to do so now. Click the graphic below or scan the QR code with your iPhone to access the survey. If you have any questions about the survey or the results, please reach out to Kevin Burkett,…
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Weekly Field Update – 3/1/21
Don’t forget to check out the Upcoming Events page for all the meetings coming up over the next couple months. The next meetings will be the 2nd and 3rd peach sessions on Thursday 3/4. We hope to see you there! Also, join us Tuesday from 11:30 to 12:00 for the new, weekly “SC Grower Exchange” where we’ll discuss…
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Weekly Field Update – 1/11/21
Coastal Rob Last reports, “Vegetable crops are growing out of the impacts of frost well. There is active Alternaria in places on brassica crops. Insect activity in vegetable crops in the area remains low. Strawberry crops are moving well with a few spider mites and aphids being observed. Remember if mite treatment is needed use a specific…