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 in places.  I am seeing a tiny bit of plant collapse and death in some spots within the fields.  It is very important to send these plants into our lab to get a positive identification of the pathogen.  Phytophthora crown rot and anthracnose crown rot can cause similar symptoms but are managed completely different. For information on how to submit a sample during COVID times, click here. I am also keeping my eye on a good bit of leaf spotting in some fields to make sure its not the new disease, Neopestalotiopsis. I don’t think we have it yet, but being proactive is better than being reactive.  More information on that disease can be found here.”   

A healthy and a diseased plant side-by-side.  Perhaps a positive identification of the pathogen can help with management to protect the healthy plant. Photo from Zack Snipes.
Determining the pathogen responsible for plant collapse can be tricky in the field.  Send in a plant pathology sample to our lab.  Is this anthracnose, phytophthora, or another pathogen? Photo from Zack Snipes.

Midlands

Justin Ballew reports, “The mornings were nice and cool last week and we saw light frosts in a few more areas. We’ve been getting a fair amount of rain also. This has the brassica crops looking great. Caterpillar populations are still fairly high. Don’t give up on scouting as it gets cooler this week. Diamondback moth caterpillars and adults can survive for several hours at temperatures well below freezing, so a few nights in the upper 20’s is unlikely to affect them, other than slowing down their life cycle a bit. Don’t give up on scouting for mites in strawberries either. Even though we’ve had some wet weather lately, they’re still out there.”

Lacinato kale is growing well and looking good. Cropping has already started in this field. Photo from Justin Ballew
Keep up with scouting for caterpillars as the weather gets cooler. Winters in SC don’t get cold enough to wipe out diamondback moth populations. Photo from Justin Ballew.

Pee Dee

Tony Melton reports, “We still have some sweet potatoes in the ground. Greens are growing well except for bacterial diseases. Some diamondback are hard to kill. We are trying everything.”

Upstate

Kerrie Roach reports, “With a low of 30 degrees Fahrenheit predicted tonight, and 26 degrees F predicted tomorrow night(Tuesday), growers in the Upstate should be making preparations for a hard freeze event. Wind speeds from 10-25 miles per hour have begun, and are expected to continue through Tuesday. So make sure any protective measures are held down tightly!”

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.
I love seeing cover crops like buckwheat incorporated into crop rotation plans.  Buckwheat outcompetes weeds, mines potassium, and is a safe haven for our beneficial insects. 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.
Brassicas are looking good in the midlands. These collards were just recently cropped for the first time. 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 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, peas but did not really hurt them much.  Very little grasshopper pressure for some reason this fall.” 

Weekly Field Update – 11/2/20

Coastal

Rob Last reports, “Strawberry planting is mostly complete in the area.  Plants received from nurseries have been very good this year and establishment is progressing well.  In fall vegetable crops Southern army worms continue to be present and numerous.  Whiteflies in fall vegetables are beginning to reduce.  Disease pressure remains relatively low.”

Zack Snipes reports, “Strawberry planting continued last week.  Bare root plants look good going into the ground.  Stay on top of workers to plant them correctly.  I saw some patches with “J” roots or long roots that went to the bottom of the hole and back out.  Those plants will die or produce considerably less yield than properly planted plants. Also, I have seen and heard reports of spider mites on plug transplants.  Check your fields and get out miticide this week if you need it.  Fall growth is very important as well as knocking out the existing spider mite populations.  Remember that the threshold for spider mites is 4-5% of the leaves with a population.  And lastly, I have seen AWFUL disease on purchased transplants.  If you purchase transplants and they have disease on them, DO NOT plant them. The plants will never produce like they should and you are inoculating the rest of your crops and land with that disease.

Clean bareroot cutoff plants.  Notice how white or cream colored the crown is and how clean the roots are. Photo from Zack Snipes.
A freshly purchased and planted collard transplant with black rot.  This plant will never grow out of this, it will reduce yield, and increase inoculum in the soil for the next brassica crop.  Send these plants back and find a new transplant provider. Photo from Zack Snipes.

Midlands

Justin Ballew reports, “Young strawberries are growing well so far in the midlands. We’ve had good weather for getting the plants established. We are starting to see some spider mites already, so don’t forget that we need to be scouting regularly as soon as the plants are in the ground. If you plan to cover your strawberries for a couple weeks in the fall, getting rid of mites should be priority #1. Other crops are doing well also, though we are seeing high numbers of caterpillars and diseases like black rot and Alternaria on brassicas have really been ramping up.”

Discoloration on young plants from spider mite feeding damage. Once populations reach the threshold of 4% infestation, treatments need to be made in a timely manner to keep spider mites from hanging around throughout the winter and into the spring. Photo from Justin Ballew.
Alternaria leaf spots on a collard leaf. Be sure to rotate fungicide MOAs when treating. Photo from Justin Ballew.

Pee Dee

Tony Melton reports, “First time I have seen large numbers of yellow-margined beetle in Orangeburg County – we had to treat 1 out of 10 fields for them.  If possible do not use a pyrethroid on young greens it will encourage worm and aphid problems.  Still seeing a lot of boron and Magnesium deficiency in greens, mostly because farmers are not liming properly, using sul-pho-mag, or using premium fertilizers with minor elements.  Spray with boron and many applications of Epsom salts and the greens will eventually grow out of the problem.  Like always, swine cress and corn spurry are awful weeds in greens – to control I recommend using a stale-bed culture technique before planting.  We still have butterbeans, peas, and cucurbits in the ground – hope frost stays away until after Thanksgiving.

Upstate

Kerrie Roach reports, “High winds, heavy rains and now cold over night temperatures have laid down a gauntlet for growers in the Upstate over the last week. Many growers in Oconee County lost power from the remnants of hurricane Zeta for anywhere from 1-4 days. Apples are just about finished with mainly Yates and Arkansas Blacks left to pick. Apple growers concerned with fungicide resistance should contact Kerrie to pull Bitter Rot samples now to be sent to the shared lab at NC State.”

Andy Rollins reports, “Finishing up strawberry planting in the upstate.  I’ve been inspecting farms and assisting some growers with planting different types of plants they weren’t used to planting.  Unlike the pictured transplants some are a little smaller than normal but appear to be healthy at this point.   Colder weather is a slight concern as we need decent growing conditions to get them rooted in well.  Some may need to use row covers to keep strawberry plants growing during the first 30 days in the ground if temperatures stay low. Peach growers are putting down fall herbicides still and some are preparing to do delay blooming.  This involves waiting till at least 50% of the leaves are off of the trees before applying a liquid form of ethylene.  Other stipulations are also important regarding temperatures after application. If it is your first time trying this, speak with your county agent to get the correct method.

Healthy strawberry plug ready to be planted. Photo from Andy Rollins.
Strawberry plastic ready to be planted in the upstate. Photo from Andy Rollins.

Weekly Field Update – 9/21/20

Coastal

Zack Snipes reports, “Cooler temperatures have finally arrived in the Lowcountry!  We had a good bit of rain in certain areas last week and some fields are soggy.  I saw lots and lots of silverleaf disorder in squash this past week.  Silverleaf disorder is caused by whiteflies.  The nymphs of the whitefly feed on the newly developing tissue which causes the upper epidermis of the leaf to separate thus giving the plant a silver appearance.  I am still seeing heavy whitefly pressure in most crops throughout the Lowcountry so keep up with spray programs and remember to ROTATE chemistries. For more information on the whitefly, click here.

Silverleaf of squash is a symptom of whitefly feeding. Photo from Zack Snipes.
Whitefly feeding damage on collards. Photo from Justin Ballew.

Midlands

Justin Ballew reports, “These cooler temperatures that have arrived following the rain feel great, but they are going to slow crop development some. Folks are already picking fall brassicas, though some may be a little small. Just trying to keep up with demand. There are plenty of caterpillars out there. I’m seeing diamondback moths (of course) as well as cabbage loopers and a few corn earworms. Be sure to rotate your insecticides when spraying for caterpillars. Folks are continuing to prep fields for the rapidly approaching strawberry season.”

Cabbage loopers are showing up. Loopers frequently rear up like a cobra when disturbed. Photo from Justin Ballew

Sarah Scott reports, “Heavy rains, in some areas totaling near 6 inches, fell around Aiken and Edgefield Counties last week. Rain was definitely welcome, however, the downpours led to some erosion issues as well as waterlogged soils in low spots. Brassica crops are benefitting from the cooler temperatures. Peach season has ended and post-season cleanup has begun. Plastic has been laid for fall plantings of strawberries.”

Eggplant is looking good. Photo from Sarah Scott.

Pee Dee

Tony Melton reports, “Rain, rain, rain. It came quickly, so most drained off quickly, if drainage was adequate.  Need to dig sweet potatoes as quickly as possible to keep down the amount of rot.  Greens, pickles, and peas are struggling to survive the rain – some are drowned.  Ponds are back in the fields.  Some strawberry plastic is already down but the rest of the folks are just beginning this week.  Transplants are scarce and most likely will be late getting here this year. 

Upstate

Kerrie Roach reports, “There has been a significant rise in wine grape production interest over the last month or two in the Upstate. Each week seems to bring another caller asking for recommendations. While climates here are relatively good for grape production overall, high humidity and heat make disease control difficult. Pierce’s Disease is one of the deadliest to deal with; prevention requires intense insect vector control and control means the complete removal of the affected plant. Recent studies have brought new cultivars to the forefront which are helping southern growers become more successful in this niche industry.

‘Traminette’ with leaf scorch symptom of Pierce’s Disease. Photo from Kerrie Roach.
‘Traminette’ with a dead leaf petiole still attached to the vine. Another symptom of Pierce’s Disease. Photo from Kerrie Roach.
‘Traminette” with Pierce’s disease showing islands of green tissue surrounded by brown. This specific grower has already disposed of the affected vines, and will be replacing with newer more resistant cultivars. Photo from Kerrie Roach.

Weekly Field Update – 8/31/20

Coastal

Zack Snipes reports, “We had between 4-6 inches of rain last week with daily thunderstorms.  Growers are working the fields getting ready for the fall crops to go in.  If it happens to rain on Wednesday night, then you should tune in to our Strawberry 101 class from 6-8PM.  We will be discussing economics, seasonal timeline, varieties and common mistakes, and fertility.  This is an excellent opportunity to learn about growing strawberries.  You must register ahead of time to participate.

Midlands

Justin Ballew reports, “After some rain early in the week, the weather turned dry and the temperatures and humidity reminded us that summer isn’t over yet. Fall crops are continuing to progress well, though we are continuing to see a fair amount of disease like anthracnose, downy mildew, and bacterial spot due to the recent wet conditions. Caterpillar populations are climbing on fall brassicas as well. In scouting a field trial, I observed diamondback moths, cabbage loopers, and armyworms. Keep a close eye out and be sure to rotate chemistries when you start spraying.”

Anthracnose spots on a cantaloupe leaf. Photo from Justin Ballew.
Cabbage looper on a collard leaf. Photo from Justin Ballew.

Sarah Scott reports, “Peach season has wrapped up in the Ridge and post- harvest fertilizer applications are being applied. Fall vegetable crops are looking good as we received some decent rain fall over the past week. Hot temperatures have had some effect on lower seed germination of some brassicas.”

Pee Dee

Bruce McLean reports, “Harvest time is finally upon us. Sunshine and warm temperatures is doing the trick for giving growers that final push for ripening the muscadine crop. Crop is looking good, but some bitter rot and ripe rot is starting to show. Brix for Carlos and Noble is averaging around 13.5%. Doreen is still a little ways from being ready to harvest, but it won’t be long.”

Grape harvester picking muscadines. Photo from Bruce McLean.

Tony Melton reports, “So wet in areas it is hard to spray peas for curculio some are having to use airplanes.  Harvesting sweet potatoes for processing and yield is good.  Planting greens for processing.  Harvesting pickles but stopped planting this week.  Still harvesting processing peppers but harvesters are getting real tired.”

Upstate

Kerrie Roach reports, “Heavy rains, humidity and continued high temperatures over the last week have continued an increased trend in disease incidence across the board in both vegetables and fruits. Growers need to be proactive to stay ahead of diseases (and insects) by scouting often and well. We are finishing out the peach season with late varieties like ‘Big Red’. Apples are gaining steam and early varieties are looking and tasting great. Overall the production seems to be on target for a significant increase over last season.”

Weekly Field Update – 8/3/20

Statewide

Dr. Matt Cutulle reports, “Hurricanes or tropical storms can lead to increased seed dispersal from seeds that can be transported by wind and water. Two notorious weeds that come to mind when planning for hurricanes are Horseweed (Conyza canadenis), which due to lightweight seeds and plant architecture can be dispersed for miles during wind storms. A troublesome weed that can be dispersed through water (overflowing irrigation ditches, river surges etc.) is curly dock (Rumex crispus) due to the bladder-like structure of the seed. If you have access to a flame weeder or maybe Gramoxone it might be a good idea to get out to any fallow fields right now and start torching weeds with seed heads prior to this incoming storm to prevent unwanted widespread dispersal of weed seed.

Coastal

Zack Snipes reports, “We are anxiously awaiting to see what Hurricane Isaias will do today and tonight.  Hopefully, we will be spared of heavy rains and winds.  Some rain from the storm would not be a bad thing as many fields are dry.  I have been finding some leaf spots in rabbiteye blueberry, which is common for this time of year.  What is unique about the leaf spots is that they have caused the variety Tifblue to shed its leaves and then attempt to grow out more leaves.  The plant is weak and nutrient-starved so the new leaves are very small and red.  You will see red shoot flagging symptoms on Tifblue but no other varieties.  The other varieties will have the same leaf spot but they will still hold onto their leaves.  Increased fungicide applications between bloom and harvest should help with management of this disease and increase yields on Tifblue and other cultivars.”

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Fungal leaf disease on Powderblue that keeps its leaves despite having an infection. Photo from Zack Snipes.

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Small, red leaves on Tifblue that are a symptom of leaf shedding and regrowth as a result of a fungal leaf disease. Photo from Zack Snipes.

Midlands

Justin Ballew reports, “Some of the midlands got some heavy rain this past week, while others remain dry as a bone. Parts of Lexington had a strong storm come through Wednesday night that washed out areas in some fields and left ponds in others. We will have to replant some areas where fall crops had just been planted. The weather has cooled of slightly since. Aside from that, folks are still prepping fields and planting fall tomatoes, peppers, and brassicas. We’re still thinning pecans also. For anyone planting strawberries this fall, now is a good time to start taking soil samples.”

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This field in Lexington had some large areas washed out by the storm that came through Wednesday night. Fall brassicas had just been planted and some areas will have to be replanted. Photo from Justin Ballew.

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A pond that formed in a field in Lexington during the rain Wednesday night. The geese aren’t mad about it (upper right side of the pond). Photo from Justin Ballew

Pee Dee

Bruce McLean reports, “Most vegetable and fruit crops look surprisingly good for the amount of heat we have had recently. Sweetpotatoes are growing very well. Peas, squash, zucchini, cantaloupe, watermelons, okra, and cucumbers are all looking good and harvesting good quantities. Downy mildew is still showing up on cucumbers, and powdery mildew on squash and zucchini. Sweet corn and butterbeans are wrapping up. The blueberry crop is finished. Muscadine grapes are looking very good. Wine/juice muscadines are just starting to color (maybe around 2-3%) and should be ready to begin harvest in about three weeks. Fresh market varieties should be just getting ready to harvest now on the earliest varieties. Grape root borer (GRB) activity was high this past week, with some traps capturing 50+ moths. Too late for any type of treatment For GRB. Just monitor and plan for control next year. Powdery mildew damage is starting to show up in the vineyard. No signs of fruit rot yet. Stink bug damage has been very light in vineyards with a strong spray program.”

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Damage from powdery mildew is starting to show up on muscadines. Photo from Bruce McLean.

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Mighty nice crop of ‘Carlos’ muscadines. Photo from Bruce McLean.

Tony Melton reports, “All processing peas are harvested for the spring crop, but we have some cowpea curculio because of uneven crop due to excessive rain.  Fall cowpea crop is planted or is rapidly being planted.  If they found seed, farmers have already planted fall butterbean crop.  Getting ready to plant fall brassica crops.  Hopefully, all vegetable growers sprayed potassium phosphide on all vegetable crops before all the rain comes for root rot control.”

Upstate

Kerrie Roach reports, “Rain has still been spotty around the Upstate, so irrigation has been extremely important for vegetable production. Storm tracks are showing that the Isaias will bring some relief for the entire area. Early apple varieties are beginning to ripen, but sugar levels are still a little low. Blueberries are about finished for the season and peaches are hitting mid-stride. Cover sprays on tree fruits will be necessary as soon as the rain event passes. Insect pressure is increasing on vegetable crops as we move later into the season and into early parts of fall cropping, so scouting is extremely important.

Field Update – 5/18/20

Statewide

Dr. Tony Keinath reports, “With the cooler-than-normal spring weather, two cool-season pathogens also may be active longer than normal. Downy mildew on brassicas, especially kale and collard, mainly affects the lower leaves. Sometimes it will move up onto the larger leaves in the middle of the plant. With a hand lens, you can see white mildew growth in lesions on the bottom of the leaves. In my spring 2020 trial, Presidio, potassium phosphite, and Zampro rotated with potassium phosphite worked well. Organic growers can use Badge X2 copper, which also performed well.

Fusarium oxysporum f. sp. niveum, the soilborne fungus that attacks watermelon, infects roots when soil temperatures are below 82F. At Coastal REC, I am still seeing new plants showing wilt symptoms. Remember that all control measures, and I want to stress all of them, must be applied before or at transplanting. There is nothing that can be done at this stage of crop growth. It is too late to apply fungicides, which will be a waste of money.”

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Tiny dark flecks of downy mildew on the bottom of ‘Blue Dwarf’ kale. Photo from Dr. Tony Keinath.

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Sporulation of downy mildew on the underside of ‘Tiger’ collard. Photo from Dr. Tony Keinath.

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Wilting and yellowing of lower leaves due to Fusarium wilt on watermelon 6 weeks after transplanting. Photo from Dr. Tony Keinath.

Coastal

Zack Snipes reports, “Things are coming along in the Lowcountry.  It has been very windy and I’ve had several farmers tell me that crops are using more water now because of the wind than if it were hot and humid.  Squash, zucchini, cukes, potatoes, and greens are coming off in good volume right now. Tomatoes are just a few weeks away and are in the sizing up stages right now. I have not seen any major pests or diseases as of late.  The conditions are ripe for the development of Powdery Mildew so be on the lookout when scouting watermelon, squash, brassica, and tomato.”

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Tomatoes are looking good and are just a few short weeks away. Photo from Zack Snipes.

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Powdery mildew on the shaded side of a collard leaf. Photo from Zack Snipes.

Midlands

Justin Ballew reports, “It’s dry in the midlands. It’s been great because we haven’t seen much disease lately (especially on strawberries), but we need some rain. The forecast looks like we may get some this week. Strawberries are still yielding fairly well, though we’re starting to see fewer blooms. Fruit size is getting smaller, but taste has still been great. The first few plantings of sweet corn are tasseling now. Brassicas are still growing well, though there is some black rot out there.  Tomatoes, peppers, and cucurbits have been growing fast the last few days also.”

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The earliest plantings of sweet corn are tasseling. Photo from Justin Ballew.

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Black rot symptoms on the margins of cabbage leaves. Photo from Justin Ballew.

Sarah Scott reports, “Peach season is here! Picking several early varieties now and running packing lines. The crop looks good for this season. Bacteriosis started to show up on leaves and fruit in fields. Still picking strawberries. Summer crops like bell pepper and squash are progressing nicely.”

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Phomopsis or twig blight in a peach orchard. Lesions on twigs cause dieback, gumosis and curling at tips. Remove damaged wood and burn. Photo from Sarah Scott.

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Twig dieback from Phomopsis twig blight. Photo from Sarah Scott.

Lalo Toledo reports, “Cool temperatures have slowed down the growth of many vegetables, but most vegetable plants are looking great. Please be aware of possible diseases coming in this week. Wet and hot conditions will be conducive for pests and diseases. Please spray accordingly and scout every two days, if possible.”

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Grasshopper damage on eggplant. Photo from Lalo Toledo.

Pee Dee

Tony Melton reports, “Hail has destroyed at least 10 A squash, 200 A peaches, 30 A strawberries, 8 A blackberries, many acres of field corn, tobacco, rye, and wheat.  Damaged another 35 A strawberries, 300 A peaches.  Thank goodness that the wind has let up for a while and temperatures have risen on tomatoes, peppers, peas, beans, and sweet potatoes.  Thrips have been awful and imidacloprid is only partially controlling them. If labeled use dimethoate, acephate, etc.   More herbicide damage than usual this year because of cool temperatures and wind, even on labeled crops and drift to non-labeled crops has been awful.”

Upstate

Kerrie Roach reports, “With a week of good growing conditions, things are looking great in the Upstate for fruit & vegetable producers. In higher elevations, there were some losses of young tender plants during isolated frost events early last week. With rains expected most of this coming week, things should start to really push for our market vegetable growers. Peaches and apples are on track for a good season.

Field Update – 5/11/20

Coastal

Zack Snipes reports, “We have had some weird weather for May touching 90 one day to in the 40s at night.  Despite the fluctuating temperatures, crops like squash, zucchini, snap beans, and cukes are all coming in and looking pretty good. Melons and tomatoes are looking ok but cooler temperatures and persistent winds with sandblasting is common this spring.  Those wind-stressed and sandblasted plants will be more susceptible to disease so make sure to follow fungicide programs closely.

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Provider green beans are loaded up. Photo from Zack Snipes.

Midlands

Justin Ballew reports, “Last week started out quite warm, which had crops developing quickly. Spring planted brassicas grew fast and Squash seedlings really jumped out of the ground. Diamondback moth caterpillar populations are still high in places and we’re starting to see cabbage loopers as well. Strawberry growers are still reporting good sales. Thankfully, it’s cooled down again (at least for a few days) and that will help strawberry plants develop more blooms before it warms back up. As the weather becomes warm and dry this week, scout closely for spider mites.”

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Great looking broccoli head ready to be harvested. Heads developed very quickly in the warm weather last week. Photo from Justin Ballew.

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Cabbage loopers are showing up in brassicas. Photo from Justin Ballew.

Sarah Scott reports, “We are picking early variety peaches along the Ridge. Strawberries are still being harvested in the area as cooler nighttime temperatures have slowed ripening. Imported cabbageworm and diamondback moth caterpillars can be found in slightly higher numbers on broccoli and cabbage plants. Windy weather has made spraying in the fields and orchards challenging.

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Bacterial canker on a peach tree. Lesions with distinct lines between healthy and diseased wood found under bark on declining trees. Photo from Sarah Scott.

Upstate

Kerrie Roach reports, “Temperatures in the Upstate were in the mid to low 30’s this weekend causing many growers to take precautions. Strawberry growers who had put their row covers away for the season, brought them back out. At this point, the low temperatures do not appear to have caused much damage. The weather is projected to even out this week, and nighttime temperatures are coming up. We are hoping for a great week of growing!

Field Update – 4/20/20

Coastal

Zack Snipes reports, “We had severe storms roll through the Lowcountry at the beginning of last week.  Fortunately, we had very little damage to most of our crops.  We had some damage to older squash and zucchini and some damage to untied tomatoes.  For the most part, we escaped with little to moderate damage and should still make some good crops. Strawberries are coming in strong but it seems like this could be our last push of the season.  I do not see many blooms coming on and our overall plant size and number of crowns per plant seem low for this time of year.

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Ants and mole crickets have become more of a problem for produce growers in the past few years. Photo from Zack Snipes.

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Burn on leaf margins caused by overapplication of boron. Photo from Zack Snipes.

Midlands

Justin Ballew reports, “We didn’t see any damage from the storms last Monday morning other than some water damaged strawberries. We’re sure to have more damaged berries once the rain clears out today. Be sure to carry damaged and rotting berries out of the fields so they won’t become a source of inoculum for Botrytis and anthracnose. Growers selling locally are still seeing good demand for their produce. To try to keep everyone safe, some strawberry growers are opting to sell only pre-pick berries. Brassicas are growing rapidly and looking great, though diamondback moth caterpillar pressure has become pretty high. Be sure to rotate modes of action when selecting DBM insecticides. Everything else (tomatoes, peppers, sweet corn, squash) is growing well also.

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Water damaged strawberries. Photo from Justin Ballew.

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The first plantings of tomatoes are growing really well.  Photo from Justin Ballew.

Sarah Scott reports, “Peach trees continue to be thinned. This week we will likely begin to see scale crawlers present and should take action with a spray of Esteem. Bacterial canker has been noted across the state this year as seasonal conditions warranted a good year for inoculation.  Peach fruit is progressing nicely with some of the earliest varieties potentially beginning to ripe in just a few weeks.”

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Peaches that have been thinned with fruit distanced about 6 inches apart. Photo from Sarah Scott.

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Early variety peach progressing nicely in Edgefield County. Photo from Sarah Scott.

Pee Dee

Bruce McLean reports, “Planting of vegetables is wide open, right now. Cucurbits (cucumbers, squash, melons), beans and peas, sweet corn, tomatoes, eggplant, and peppers are all going in. Greens are looking good. Potatoes are coming along nicely, despite having to be planted late. Starting to see Colorado potato beetles in potatoes. Frequent scouting and timely insecticide applications are key to their control. Strawberries yields are really starting to pick up. A lot of nice-sized, sweet strawberries are available now. Blueberry fields are starting to get that tinge of blue on the earliest berries. We should start seeing some fruit being harvested in the next few days.

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Colorado potato beetle on a potato leaf. Photo from Bruce McLean.

Tony Melton reports, “It was getting dry, thank goodness for the rain.  Most of our butterbeans and peas are grown with irrigation.  Most of our first crop cucumbers are starting to hit the rapid growth stage – get out and sharpen the plows.  Greens are loving this weather.  Watch out for yellow margined beetle- you will most likely see the brown ugly small grubs – they like sandier soils.

Upstate

Kerrie Roach reports, “With beautiful skies over the last week since the outbreak of tornadoes across the state, growers have been able to get back into the fields. Last night and this morning’s heavy rains caused some minor runoff and ponding, but nothing we haven’t seen before. A few scattered nights/mornings with cold temperatures do not seem to have caused any significant damage to the peach or apple crops. The biggest news in the Upstate has been cleanup… cleanup of the Seneca area and further up near Pumpkintown. So far, there has been a very limited reported effect from the tornados on the fruit & vegetable growers. We’ve had many livestock producers with downed fences and shelter roof damages, but nothing too severe. Residential areas were the hardest hit, and the community has really shown out in its response.

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EF3 tornado damage from Seneca, SC. Photo from Kerrie Roach.

Andy Rollins reports, “This is damage seen on multiple farms is believed to have been caused by self-inflicted miticide application with a surfactant, or possibly damaged from the sun. What allowed us to learn this is that almost all of the damage is located on the top side of the fruit but when flipped over the portion of the shaded berries remained undamaged.  Please be careful with all fungicide/pesticide applications and make sure you are following all of them.  If the label doesn’t call for a surfactant to be used…..please do NOT use one.

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Damage possibly from using a surfactant with a miticide or from the sun. Photo from Andy Rollins.

Field Update – 3/16/20

COVID-19 has become a concern for fruit and vegetable growers, especially those expecting to open U-Pick operations in the coming weeks.  It is unknown at this time how the virus, quarantines, and closures will affect produce sales.  Updates will be shared on the SC Grower each week in regards to this issue.  In the meantime, please take the necessary precautions to protect yourselves, your workers, and customers.

Coastal

Dr. Matt Cutulle reports, “I received a couple samples of the aquatic weed Eurasian Watermilfoil this month from irrigation and other water-filled ditches. This invasive weed has been moving South and can block up waterways. Sonar herbicide is effective against this weed. Draining the ditches and allowing the weed to dry out can reduce the viability of this weed as well.”

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Eurasian watermilfoil foliage. Photo from Dr. Matt Cutulle.

Zack Snipes reports, “Things are warming up and drying out in the Lowcountry.  Everyone is very busy preparing land and planting.  Tomato planting will continue this week.”

Midlands

Justin Ballew reports, “Last week was mostly warm and sunny and there’s been lots of pine pollen in the air.  Believe it or not, we have some places that are dry and are being irrigated.  We have some ripe strawberries around that are ready to pick and I have been pleasantly surprised with the taste so far.  It won’t be long before U-Pick operations are open.  The dry weather has allowed spider mite populations to pick up and lots of folks have put out miticides.  Be sure to scout regularly and stay on top of sanitation.”

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Sandy soils in the midlands have dried out and these young collards have started to wilt.  Photo from Justin Ballew.

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Strawberry harvest will begin soon in the midlands.  Photo from Justin Ballew.

Sarah Scott reports, “Most peach trees in the middle part of the state are well into bloom if not beyond. A break in the rain has given growers a chance to get into the field and spray for blossom blight as well as begin herbicide sprays in some orchards. There appears to be very little damage from previous cold nighttime temperatures but we will still have to wait to get the full scope until fruit development begins. Vegetable plastic has gone in later than usual due to muddy, wet field conditions. Spring brassicas are being planted and potatoes are still going in as well.

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Peach trees near full bloom.  Photo from Sarah Scott.

Pee Dee

Tony Melton reports, “Hurrying to get greens planted before the rain.  Most sweet potato beds are in.  Picking strawberries, but botrytis is bad because of all the rain and cloudy weather.  Some are looking to start planting butterbeans soon to get ahead of the summer heat.  Soil temperatures are good but, we never know about late frosts.  It looks like we have some thinning of flowers/fruit on peaches with the cold temperatures, however, right now we still have a good crop.”

Upstate

Kerrie Roach reports, “We are starting to see some beautiful peach blooms here in the Upstate. The ‘Belle of Georgia’ blooms are at about 80% in Long Creek as of Thursday. Lots of honeybees were out doing their work.”

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Honeybee foraging peach blooms. Photo from Kerrie Roach.