SC Fruit and Vegetable Field Report – September 11, 2023

Midlands Region

Rob Last

  • Some welcome rainfall we had over the weekend will help to keep soil moisture reserves available for crops. Looking at the forecast, we are looking at some reduced temperatures, which will help to set fall solanaceous fruit.
  • I am beginning to pick up diseases in crops, particularly bacterial diseases such as black rot in some brassica fields.
  • Keep scouting crops for symptoms of pest and disease activity.
  • Diamondback moths are present but are currently at low levels.
  • Checking plants before transplanting is critical to prevent introducing disease and pest issues into the field from the nursery. As we move towards strawberry planting season, checking plants becomes more crucial.
A field of plants in the sand Description automatically generated

Collard transplants are developing well in the Midlands.
Rob Last, ©2023 Clemson Extension

Sarah Scott

  • Heavy rains from last week’s tropical system still have areas wet and muddy. Some pockets experienced wind damage along with scattered hail. No significant damage was reported.
  • Fields are being prepped and plastic laid for fall plantings of brassicas as well as strawberries.
  • Although peach season has passed, we are seeing several issues that come as a consequence of reduced spray management in seasons with little to no crop. Mummy fruit is hanging in some fields, and growers need to remove all they can to reduce disease inoculum for next year’s crop. Pests that would normally be kept at bay with regular cover sprays have flared up. An example is sawflies. Sawfly is not typically an issue that needs addressing because it usually isn’t a heavy feeder of peach, and if present, summer pyrethroid sprays will knock it out fairly easily. However, with reduced sprays due to significant crop loss this season, we have seen a hefty population move in and defoliate trees prematurely. In areas where leaves are still plentiful, and pests are present, growers can apply a pyrethroid spray.
Sawfly adult on a peach leaf.

Sawfly adult on a peach leaf.
Sarah Scott, ©2023 Clemson Extension

Sawfly larvae, also called “pear slug.”

Sawfly larvae, also called “pear slug.”
Sarah Scott, ©2023 Clemson Extension

Peach trees defoliated from heavy sawfly feeding.

Peach trees defoliated from heavy sawfly feeding.
Sarah Scott, ©2023 Clemson Extension

Pee Dee Region

Brittney King

  • We had some cooler temps and some rainfall last week, so be on the lookout for fungal issues caused by increased periods of leaf wetness.
  • Some summer vegetables, such as okra, tomatoes, squash, melons, and watermelons, are still being harvested.
  • Fall greens are being planted and coming along well overall. Make sure to scout leafy greens for diamondback moths and other pests.

If this document didn’t answer your questions, please contact HGIC at or 1-888-656-9988.

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