Tag: phytophthora
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Weekly Field Update – 6/9/25
We saw some more rain and storms across the state last week. Watermelons and tomatoes are really coming in and a few strawberry growers are still hanging on. Disease has made a significant increase recently and piercing/sucking insects are on the rise. See details below. Keep an eye on the Upcoming Events tab periodically so…
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Field Scouting and Identification of Diseases on Cucurbits in South Carolina
From Clemson Plant Pathologist Tony Keinath For anyone who missed the Preplant Cucurbit Meeting on Feb. 7, 2025, at the Edisto Research and Education Center, here is a recap of the main points on scouting fields for cucurbit diseases. Table 1 shows which diseases are most likely to show up on different crops. Use this…
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Weekly Field Update – 1/21/25
The Weekly Field Updatesare back for 2025! We hope the year is off to a good start for everyone. This week, growers are preparing for the cold and some possible snow/ice in parts of the state. Strawberries are a mixed bag with root rot, crown rot, and Neopest showing up in places. Brassicas are showing…
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Question of the Week – Phytophthora Crown Rot
This week, the question was: What caused the dark brown discoloration in this strawberry crown? This discoloration is a common symptom of Phytophthora crown rot. Wet conditions favor this disease; therefore, we tend to see it develop after periods of increased rainfall, especially in low areas in the field. The first symptom we notice is…
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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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Managing Phytophthora Blight on Pepper
From Clemson Plant Pathologist Tony Keinath and Extension Agent Andy Rollins. After 3.28 inches of rain in the Upstate from May 23 to 26, symptoms of Phytophthora blight showed up in one or more fields of pepper and tomato after June 1. The heavy downpour and the volume of rain saturated the soil, providing the…
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Not Planting to Manage Phytophthora Blight by Reducing Disease Risk
From Clemson Plant Pathologist Anthony Keinath and Clemson Agricultural Economist Felipe Silva. After an absence of several years, Phytophthora blight reappeared in South Carolina in July 2021 on three farms. As expected, the outbreaks were on two of the three most susceptible vegetable crops: 2 cases on pepper and 1 case on pumpkin. (Summer squash…
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Weekly Field Update – 4/12/21
Statewide Dr. Matt Cutulle reports, “I am starting to see some goosegrass popping due to soil temperatures being 65 F. Goosegrass will typically be problematic in more compacted areas of the field. In most broadleaf crops a Select or Poast post-emergent application will control emerged goosegrass. PRE herbicide options include Curbit and Dual Magnum (If…
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Weekly Field Update 11/30/20
Coastal Zack Snipes reports, “After a long Thanksgiving nap, I was able to waddle out in the fields and look at some strawberries. We have had some really good strawberry growing weather especially considering most folks got their plants out somewhat late this year. We need some cold weather to slow them down a bit…
The South Carolina Grower 