Tag: Disease
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Question of the Week – Sclerotinia White Mold
This week, the question was: What is wrong with the stem and lower petioles of this cabbage plant? This plant is suffering from Sclerotinia white mold (caused by the fungus Sclerotinia sclerotiorum), also called Sclerotinia stem rot. This disease is commonly observed this time of year as temperatures begin to warm up. It develops a…
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Grafting Reduces Southern Blight on Tomato by 83%
From Clemson Plant Pathologist Tony Keinath. Southern blight has become more common on tomatoes grown without fumigation throughout the southern United States. A joint project between the University of Georgia and Clemson University looked at grafting as a management option. In the 2021 trial in Charleston, SC, grafting reduced the percentage of diseased plants from…
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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 – 12/6/21
Coming up this Thursday (12/9) will be Part 2 of the Organic and Sustainable Vegetable Grower Meeting. Speakers will be discussing bed formation and alternative fertilizers. This virtual meeting will start at 9 am. Click here to register. Coastal Region Rob Last reports, “Pest and disease activity in the area remain low with overall good…
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Weekly Field Update – 11/22/21
We are currently evaluating the SC Grower site to determine any updates or upgrades that are necessary to better serve our viewers. To help with this, we would love to have your feedback. This quick survey should take about 5 minutes to complete and is completely anonymous. Please take a minute to share some of your likes,…
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Timely Diagnosis
From Clemson Plant Pathologist Tony Keinath. Plants are a rich source of food for microorganisms—for aggressive plant pathogens, for weak pathogens, and for common saprophytes (the 90% of microorganisms that feed only on dead plant parts). Once a pathogen kills parts of leaves or side roots and we see dark brown spots, things change. The…
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Weekly Field Update – 11/8/21
Over the next few weeks, we will be evaluating the SC Grower site to determine any updates or upgrades that are necessary to better serve our viewers. To help with this, we would love to have your feedback. This quick survey should take about 5 minutes to complete and is completely anonymous. Please take a…
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Weekly Field Update – 10/25/21
Join us this Thursday (10/28/21) at 12:30pm for the next installment of our CUltivating SC Growers Series. This month Zack Snipes will be discussing the ins and outs of cover cropping. To register, click here. Coastal Region Zack Snipes reports, “We had a nice week of weather last week and are getting some rain this…
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Fog and Downy Mildew on Collards
From Clemson Plant Pathologist Tony Keinath. Foggy fall mornings are nature’s warning that conditions are favorable for brassica downy mildew to get started on collard and kale. Remember that because downy mildew affects the harvested, edible portion of the crop, control practices must be very effective to increase yields. Use the following practices to maximize…
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Weekly Field Update – 10/11/21
Statewide There are some reports that anthracnose may be issue in strawberries this year. In addition, we are continuing to look out for the new disease, Neopestalotiopsis. Clemson Plant Pathologist Guido Schnabel has recommended applying Zivion S (natamycin) via preplant dip to help prevent these diseases. Dr. Schnabel provided the following instructions: Mixing Instructions. Add…
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