Tag: disease management
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Cucurbit Downy Mildew Found in SC
Prepared by Rob Last, Justin Ballew, and Tony Keinath. Cucurbit downy mildew was identified in South Carolina on 5/12/23. The identification came from butternut squash grown in a sentinel plot at the Coastal REC in Charleston. The same strain that affects butternut squash also affects watermelon and summer squash. Now that downy mildew has been…
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Weekly Field Update – 4/24/23
Check out upcoming meetings on the Upcoming Events tab, and don’t forget to look at our Resources tab for links to crop handbooks, helpful websites, and related blogs. Also, check out the latest episode of the SC Grower Exchange Podcast. Be sure to scroll all the way to the bottom to see this week’s Question…
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Weekly Field Update – 4/17/23
Check out upcoming meetings on the Upcoming Events tab, and don’t forget to look at our Resources tab for links to crop handbooks, helpful websites, and related blogs. Also, check out the latest episode of the SC Grower Exchange Podcast. Be sure to scroll all the way to the bottom to see this week’s Question…
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Weekly Field Update – 4/10/23
Coming up this week, we have a couple more Pesticide Collection Events hosted by the SCDA. This is a great opportunity to get rid of any old unwanted pesticides you have lying around the shed. Check out other upcoming meetings on the Upcoming Events tab. Don’t forget to look at our Resources tab for links…
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Bacterial Spot on Tomato: Are the Cures as Bad as the Disease?
From Clemson Plant Pathologist Tony Keinath and Extension Agent Zack Snipes. Now that tomatoes are in the ground in coastal South Carolina, it’s time to think about a tomato spray program for a disease that shows up every year: bacterial spot. Current recommendations are based on a tank mix of copper + mancozeb. The comments…
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Weekly Field Update – 4/3/23
Coming up this week, we have a couple of Pesticide Collection Events hosted by the SCDA. This is a great opportunity to get rid of any old unwanted pesticides you have laying around the shed. There is also a webinar on Composting coming up on Wednesday. Check out other upcoming meetings on the Upcoming Events…
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Pest and Disease Control Recommendations For Non-bearing Peach Orchards After Bloom
From Guido Schnabel, Brett Blaauw, and Phil Brannen Late frost has hurt many peach varieties in South Carolina and Georgia this year. The varieties that escaped the frost (the late bloomers with high chill requirements) still may have fruit and will probably go on a regular spray program, even if chill requirements were not met…
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Black Rot Review: How to Manage this Disease on Brassica Crops
From Clemson Plant Pathologist Tony Keinath. Black rot is the most common disease caused by bacteria on brassica crops. It was widespread in the Lowcountry in fall 2022, so it’s time for a review of this serious disease. Recognizing Black Rot Most often, black rot starts at the edges of the older leaves on brassicas.…
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Question of the Week – Phytophthora Crown Rot
This week, the question was: What has caused the dark brown discoloration in the crown of this strawberry plant? This dark reddish/brown discoloration in the crown is a typical symptom of Phytophthora crown rot. The first observable signs of this disease include wilting and browning of the leaves in the field. Phytophthora is most serious…
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How Seedless Watermelon Cultivars React to Fusarium Wilt: Average Results of 2021 and 2022 Trials
From Tony Keinath, Extension Vegetable Pathologist. As part of a large USDA Specialty Crop Research Initiative grant, I have been working with Dr. Jonathan Schultheis, Horticulturist at NCSU, to evaluate seedless watermelon cultivars grown in plots naturally infested with the Fusarium wilt fungus. The South Carolina trials were done in my Fusarium-infested field at the…
The South Carolina Grower 