SC Fruit and Vegetable Field Report- January 17, 2023

Zack Snipes

How to Grow and Care for Braeburn Apple Trees Malus x domestica ‘Braeburn’

Zack Snipes

Zack Snipes

Rob Last reports, “Strawberry crops continue to develop well with minimal pest and disease pressure so far. Fall vegetables are progressing towards the market. We continue to see pest pressure from caterpillars, and a few isolated aphids have been spotted during scouting. As we progress towards the holiday season, scouting of crops remains of vital importance to catch insect infestation and disease progression early for treatments to be effective.”

Rob Last reports, “Strawberry crops in the area are looking good with good crown development. We are seeing open flowers and some fruit set based on warmer conditions. These crops are cause for some concern as we are likely to see damage from forecast cold snaps. There is evidence of botrytis (gray mold) in crops on cold damaged flowers and fruit. Sanitation can really help to mitigate the spread of the disease. Spider mites remain active and in places are requiring treatment. Remember to avoid pyrethroids for mite control as these can flare mite populations.”

Happy New Year! We hope everyone had a great holiday season and is off to a good start in 2021. We have several virtual grower meetings coming up over the next two months, so keep an eye on the “Upcoming Events” page for info. Also, don’t forget the Southeastern Regional Fruit and Vegetable conference kicks off virtually this week, and it’s not too late to register.

Dr. Matt Cutulle reports, “Burndown herbicide efficacy can be reduced in colder weather, especially systemic products such as glyphosate (Reduced translocation in the cold means herbicide does not move through the plant as much).”

Rob Last reports, “Vegetable crops are growing out of the impacts of frost well. There is active Alternaria in places on brassica crops. Insect activity in vegetable crops in the area remains low. Strawberry crops are moving well, with a few spider mites and aphids being observed. Remember, if mite treatment is needed, use a specific miticide to target the pest to avoid flaring populations. If you need a second pair of eyes to help scout, then please give me a shout.”

Rob Last reports, “Crops in the area continue to develop well, and I expect this to continue after some welcome rainfall over the weekend. Following the rain over the weekend and returning to warm temperatures, keep scouting for diseases in crops and ensure fungicide applications are made promptly. Spider mites show activity in a range of crops from strawberries to peppers, tomatoes, and blackberries. Cucumber beetles are beginning to be found in sticky traps. Currently, no damage is being seen to crops.”

Zack Snipes reports, “We are in a summer weather pattern with warm, muggy days and occasional thunderstorms. Most crops have finished up or are in the process. Now is a great time to sit down and do some crop planning and field rotation planning. I collected many soil and root tissue samples lately and had them analyzed for nematodes. I was surprised at how many nematodes were present in the fields. Nematodes can interfere with growth, cause stunting, and lower overall yields. Sometimes the symptoms of nematodes can be very discrete, so sampling right now is the best way to get a baseline of your populations and how to properly manage and rotate fields. If left unchecked, thousands of dollars are wasted before the first seed is planted into a field.”

Rob Last reports, “In our area, crops are developing well with few pest or disease issues currently. Some brassicas are displaying a reddening to the older leaves associated with reduced phosphorous uptake. Phosphorous uptake can be reduced in cold temperatures but will recover when we see some warmer temperatures. There is no response to an additional application. Where strawberries are flowering or have fruit, it is advisable to remove those to minimize sources of Botrytis gray mold for later in the year.”