Tag: Tomatoes
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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 – 7/11/22
Clemson Plant Pathologist Tony Keinath has a new article featured in the American Vegetable Grower. Click here to read about “Why Disease Control is More Challenging on Leafy Greens.” Don’t forget about the Watermelon Field Day coming up this Thursday (7/14) at the Edisto Research Center (64 Research Rd.) in Blackville from 8am-1pm. Registration opens…
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Weekly Field Update – 6/13/22
Be sure to scroll all the way to the bottom to see this week’s Question of the Week and check back on Thursday for the answer! Statewide Extension Entomologist Tom Bilbo reports, “As tomatoes and other fruiting vegetables progress, make sure you’re protecting yields from insect and mite pests. I’ve seen a fair bit of…
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Field Testing for Bacterial Wilt
Bacterial wilt and Southern blight have been showing up in SC over the last couple weeks. While both diseases cause indistinguishable wilting in the infected plant, it is important to determine which disease is present in order to appropriately manage it. The test shown below is a quick field test that will help distinguish between…
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Weekly Field Update – 6/6/22
Clemson Plant Pathologist Tony Keinath has been busy updating Extension Disease Publications on Clemson’s Land-Grant Press. Be sure to refer to the following resources as you think about your disease management programs: Gummy Stem Blight on Watermelon and Muskmelon, Watermelon Fungicide Guide, Cucurbit Downy Mildew Management, Powdery Mildew on Watermelon, and Controlling Bacterial Spot on…
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Weekly Field Update – 5/31/22
Be sure to scroll all the way to the bottom to see this week’s Question of the Week and check back on Thursday for the answer! Coastal Region Zack Snipes reports, “It seems like everything is coming in from the fields right now. We got some rain but could really use some more. I am…
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Why Tomato Crops Today Are So Susceptible to Diseases
Clemson Plant Pathologist Tony Keinath was recently named as a columnist for American Vegetable Grower. Dr. Keinath’s first article was recently published featuring tomato disease. Check out an excerpt below. Why are tomatoes so susceptible to disease? Of three possible answers — aggressive pathogens that specialize on tomato, the tomato plant itself, or the growing…
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Weekly Field Update – 4/18/22
Be sure to scroll all the way to the bottom to see this week’s Question of the Week and check back on Thursday for the answer! Coastal Region Zack Snipes reports, “It has been a very windy spring. The winds are drying out our soils and beating up plants. I have looked at some tomatoes…
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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 – 8/30/21
Don’t forget to sign up for the Virtual Strawberry Production Meeting we will have this Thursday (9/2) at 6 PM. We will have speakers from Clemson, UGA, and NC State and we expect it to be a great program. Visit the Upcoming Events page to see a list of topics and click here to register.…
The South Carolina Grower 