Clemson Extension Agents Provide Crop Updates

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Clemson Extension agents provided updates in The South Carolina Grower this week about the status of various crops being produced throughout the state.

Weekly Field Update – 11/9/20

Coastal

Zack Snipes reports, “It seems like we experience fall and summer in the same day this time of year. I visited a few farms and saw residual damage from whiteflies (silver leaves, virus, and stunted plants). The good news is that overall populations of whiteflies are down this week. The armyworm numbers are still high in a lot of crops, so keep an eye out for those. We have lots of good products for them, so choose something other than a group 3 or 4 insecticide. I have seen some white mold (Sclerotinia sclerotiorum) in some brassica crops this week. I have some great reports from strawberry fields and other not-so-great reports. If you have issues, please call me so we can fix them before they get out of hand.

White mold symptoms on Brussel sprout. Photo from Zack Snipes.

Midlands

Justin Ballew reports, “We had some very warm afternoons this past week. The air has been much drier as well. Young strawberries are responding well and have put out a good amount of new growth. Weak plants caused by J-rooting and deep planting are making themselves evident now. The drier air has allowed some growers to get a handle on the disease issues that have plagued us for the last few weeks. However, there is lots of warm, wet weather in the forecast, so plan your fungicide applications accordingly and rotate modes of action. Other crops are still growing well and we have folks picking tomatoes, squash, beans and various brassicas.

All the strawberry plants in this small area were J-rooted and subsequently died. Photo from Justin Ballew.

Sarah Scott reports, “Patchy frost brought an end to some fields of summer crops like squash and zucchini, however, most areas did not see damage from cold temps. Cole crops are progressing nicely, but insect populations are high this fall, including aphids and imported cabbage worms. Strawberry plants have gone in and are taking root and getting established.”

Caterpillar populations have been high around the ridge this fall. Photo from Sarah Scott.

Pee Dee

Tony Melton reports, “Getting dry. Hope we get some rain later in the week. Greens are growing very fast with warm weather. Frost burned the very tops of some crops like sweet potatoes, tomatoes and peas but did not really hurt them much. Very little grasshopper pressure for some reason this fall.”