LATEST POSTS
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Watch for Late Blight in Tomatoes
By Clemson plant pathologist Tony Keinath. The unusually cool weather in South Carolina the past two weeks and the rain from the tropical storm system over the Memorial Day weekend create favorable environmental conditions for late blight to develop on tomatoes that have not been sprayed with a fungicide in the past week. However, I’ve…
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Weekly Field Update – 5/30/23
Registration is now open for the Coastal REC Field Day on 6/7/23. Come to see and hear updates on vegetable weed, disease, and insect research. Register here. Check out other 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…
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Question of the Week – Parasitic Wasp Pupae
This week, the question was: What is the white-colored stuff on this beet leaf? This is a cluster of parasitic wasp pupae. The adult wasp would have laid eggs into a caterpillar to provide food for the developing larvae. The larvae develop inside the caterpillar and then exit it to pupate, usually killing it in…
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Urgent: Powdery Mildew Found on Watermelon in Charleston, SC
From Clemson Plant Pathologist Tony Keinath. Powdery mildew was found on three cultivars of seedless watermelon at the Clemson Coastal REC on May 23, 2023. All watermelon crops in South Carolina should be 1) scouted for powdewry mildew and 2) if found, sprayed to prevent powdery mildew from reducing yields by up to 40%. When…
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Weekly Field Update – 5/22/23
Registration is now open for the Coastal REC Field Day on 6/7/23. Come to see and hear updates on vegetable weed, disease, and insect research. Register here. Check out other 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…
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Question of the Week – Lady Beetle Eggs
This week, the question was: What are these orange-colored things stuck to the bottom of this collard leaf? This is a cluster of lady beetle eggs. Lady beetles are great insects to have around, especially if you have problems with aphids, their favorite food. Adults eat aphids whole, while the nymphs, seen below, pierce and…
The South Carolina Grower 