Field Update – 8/26/19

Coastal Region

Dr. Tony Keinath reports, “Phytophthora crown rot was observed on bronze fennel in a home landscape (mine) in Charleston. Fennel apparently is a new host for Phytophthora  (species not identified). Foliar symptoms include a progressive yellowing, starting with the older leaves. Symptoms on the lower stem and leaf sheath are a water-soaked, “greasy” rot. It is very likely that Florence (green, edible) fennel also is susceptible. Potassium phosphite products are the only fungicides registered for post-transplant applications on the leafy vegetables crop group that includes fennel.”

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Yellowing of fennel foliage from Phytophthora crown rot. Photo from Dr. Tony Keinath.

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Water-soaked, greasy rot symptom on the lower sheaths. Photo from Dr. Tony Keinath.

Midlands

Justin Ballew reports, “We got some much-needed rain over most of the midlands this week and temperatures have been a little cooler over the last few days.  Planting continues with fall brassicas and diamond back moth caterpillars are showing up already.  We need to be scouting weekly for those and using the treatment threshold of 5 worms per 10 plants at this stage of the season.  The recent moisture is causing an increase in disease pressure, so stay on your regular spray schedules.”

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Diamondback moth pupa on the underside of a collard leaf. Photo from Justin Ballew.

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Diseases like anthracnose could increase following with past week’s rain. Photo from Justin Ballew

Sarah Scott reports, “Peaches are wrapping up around the ridge. Broccoli plants are still going in for fall harvest. We have had rain in the last week which has been a nice break on irrigation systems.”

Pee Dee Region

Tony Melton reports, “Last of pickling cucumbers have been planted.  Collard, kale, turnips, mustard, etc. planting in full swing with both transplants and direct seeding.  Bed prep for strawberries has begun.  Getting late to order strawberry plants. Fall blackberry harvest is continuing.   Sweet potato harvest will begin soon.  Double cropped processing peas are starting to flower.  Butterbeans planted for fall production are starting to flower.”

Upstate

Kerrie Roach reports, “The last few peaches are being picked this week in Oconee County. The apple harvest is coming along nicely, ‘Early Fuji’ and ‘Golden Delicious’ apples will start to be picked this week. A spotty hail storm in Long Creek last week has caused some damage across the orchards, but is very localized. Summer market vegetable growers are wrapping things up with some of the Farmers Markets closing at the end of August. With rain & cooler weather forecasted, disease and weed management will be a continued battle for growers.”

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Early Fuji apples from the Upstate. Photo from Kerrie Roach.

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