Field Update – 8/12/19

Posted on August 12, 2019 by Justin Ballew

Coastal Region

Zack Snipes reports, “We are in the middle of muscadine and scuppernong harvest right now. Okra and mixed peppers are still pushing out despite the heat. We had a great Strawberry Production Meeting in Charleston last week. If you have any questions on strawberry production now is the time to ask before planting.”

Muscadines and scuppernongs from Ravenel, SC. Photo from Zack Snipes.

Great strawberry production meeting in Charleston (8/6/19). Photo from Zack Snipes.

Midlands

Justin Ballew reports, “We had a storm come through Saturday night that brought a little rain to some parts of the midlands, but overall we are still quite dry. More fall brassicas are going in the ground and there is already some caterpillar pressure on those that are up. Downy mildew is showing up on cucumbers and pumpkins on a more widespread scale now. Stick to fungicide programs if you’re growing fall cucurbits.”

Fall collards in Lexington County are already seeing diamond back moth caterpillar pressure. Photo from Justin Ballew.

Downy mildew in fall cucumbers. Photo from Justin Ballew.

Sarah Scott reports, “We have had hot and dry conditions along the Ridge with hit and miss showers. Running irrigation heavily. Late cherry tomatoes, eggplant, peppers and broccoli are being planted. Leaf footed bugs on late season tomatoes causing minimal damage. Peaches still producing through late August, possibly into early September. Field work is still being done to prepare for fall planting of new orchards.”

September Sun peaches are nearing harvest. Photo from Sarah Scott.

Leaf footed bugs causing minor damage to late tomatoes. Photo from Sarah Scott.

Upstate

Mark Arena reports fall webworms and tent caterpillars are showing up on pecans. “This is truly a nuisance pest and generally does not influence nut production. Proper control may be challenging since the webbing should be broken apart prior to spraying. Once the webbing is broken apart, the insecticide can make contact with the caterpillars and offer effective control. Any insecticides labeled for caterpillars will work.”

Fall webworm in the canopy of a pecan tree. Photo from Mark Arena.

Pee Dee Region

Bruce McLean reports, “Temps have been soaring and rain has been scarce across the Pee Dee Region. Most crops are looking good though. Watermelon, cantaloupe, canary melons, cucumber, zucchini and yellow squash volumes are still up and quality is good. Okra volumes are really starting to pick up and the quality is very good. Okra is flowering heavy, so volumes should be good for the foreseeable future. Muscadines are continuing to ripen. Muscadine brix levels (sugars) are rather high for this time of the season. Harvest should be very good this year. Fresh market muscadines should be available starting this week.

“Noble” muscadines are getting close to harvest. Photo from Bruce McClean.

Okra is rolling along in the summer heat. Photo from Bruce McLean.

Tony Melton reports, “Fall pickling cucumbers are being planted. Pythium is still prevalent on pickling cucumbers and may need to be controlled. Fall peas and snap-beans are up and growing and need thrips control, but I have found thrips are in low numbers this fall and they may grow out of damage. I have found some beet armyworms on peas in some locations – scout. Also, lesser cornstalk borers are bad on both peas and snap-beans mainly due to the dry conditions; therefore, irrigate if possible or apply Coragen or similar systemic product. Loopers are present on sweet potatoes but doing mostly very little economic damage. I have found some striped armyworms in certain locations which need to be controlled. Starting to plant fall processing greens.

Field Update – 7/15/19

Posted on July 15, 2019 by Justin Ballew

Coastal Region

Zack Snipes reports, “Most crops are finished here in the Lowcountry. There are a few crops that are being harvested for the final time this week. Fall watermelon and tomato are in the ground already. I saw some interesting cucumber beetle larvae damage on watermelons this past week. This type of damage will result in loads of melons being rejected by buyers. Crop rotation is a vital component to managing this pest. If you have seen this type of damage, please reach out so we can develop a plan of attack for next season. I attended the Edisto REC Watermelon Field Day this past week and learned about the future of robotics in agricultural production and had the opportunity to taste over 30 varieties of watermelons.

Cucumber beetle larvae damage to watermelon rind. Photo from Zack Snipes

Robotics demo at the Watermelon Field Day at Edisto REC, 7/11/19. Photo from Zack Snipes

Midlands

Justin Ballew reports, “We had some scattered rain over the last week. Some folks are still needing some. We’re winding down on the spring brassicas and cucurbits. This is good because foliar diseases like anthracnose and powdery mildew are really increasing with the humidity. We’re still picking tomatoes and have started picking peas. Spider mites are picking up, so scout closely for those. Hemp is growing well, though we’ve seen some seedling disease and cutworm damage in spots.”

Anthracnose lesions on a cucumber leaf. Photo from Justin Ballew

Sarah Scott reports, “Hot and dry weather along the Ridge. Conditions have been favorable for increased spider mite and stink bug activity.

Stippling from spider mite feeding damage on peach leaves. Photo from Sarah Scott

Upstate

Andy Rollins reports seeing some blackberry tips wilting from raspberry cane borers. “If you see this, they need to be cut off 6 inches below the 2 girdled lines you see below. This material can be composted or you can just squish them. Insecticide sprays can be helpful but only when applied before symptoms appear. It is a type of beetle larvae that is feeding on the stem before becoming an adult. Commercially, there would have to be a major infestation to warrant the extra labor. Normally this won’t be present in a regularly sprayed crop.”

Stem girdling from raspberry cane borer. Photo from Andy Rollins

Raspberry cane borer larva inside of blackberry stem. Photo from Andy Rollins

Kerrie Roach reports Ginger Gold apples are being harvested in the upstate.

Ginger Gold apples from the upstate. Photo from Kerrie Roach

Pee Dee

Bruce Mclean reports, “Well, it looks like another hot week is on tap for us this week. Squash, watermelons, cucumbers, cantaloupes, peas and peppers are coming off in good volumes. Quality looks especially good on these crops. Blueberries and sweet corn are finishing up. Starting to see some disease in muscadines. If you are seeing leaf spots in them, it may be time to evaluate and adjust your spray program. Also, starting to see early ripening of fruit. Be on the look out for fruit rot.

Muscadines ripening. Photo from Bruce McLean

Black rot lesions on muscadine leaf. Photo from Bruce McLean

Tony Melton reports, “Cucumbers having hard time setting fruit in the heat – getting many nubbins (crooked fruit). Parthenocarpic varieties seem to handle the heat better than regular pollinated varieties. Processing tomato harvest is progressing quickly and about ½ complete. Processing pea harvest will begin this week – thousands of acres ahead to harvest. Processing hot pepper harvest has begun and will continue for a month.

Field Update – 6/17/19

Posted on June 17, 2019 by Justin Ballew

Coastal Region

Zack Snipes reports, “We received a good amount of rain last week. Some farms got just the right amount while others received 15 inches or more. I am seeing disease now that the rain has passed in all crops, especially the tomato and cucurbit crops. Keep on top of your spray programs to finish the season out. I am also seeing some cracking in heirloom, cherry, and grape tomatoes because of the rain. Stink bugs are increasing in number and tomato growers should scout their crops for them and make adjustments to insecticide programs. On Friday I visited a farm that had buckwheat strips beside the cash crop. They had, by far, the least amount of insect pressure on their cash crops as a result of providing a beneficial insect refuge.

Stink bugs nymphs on a tomato. Photo from Zack Snipes

This buckwheat strip planted in the row middle provides refuge for beneficial insects. Photo from Zack Snipes.

Midlands

Justin Ballew reports, “The first half of the week was rainy, but by the end of the week, irrigation systems were running again in places. The temperatures have been pretty mild for mid June. Vegetables are growing fast since the rain and we’re picking sweet corn, green onions, tomatoes, peppers, squash, cucumbers, and zucchini now. We’re continuing to scout for downy mildew as it’s been found in several places on the coast now. It’s only a matter of time before it shows up here, so stay on top of spray programs. Hemp is also going in the ground.

Squash is growing fast. Photo from Justin Ballew

Hemp transplants ready to go to the field. Photo from Justin Ballew

Sarah Scott reports, “After a long period of dry weather, the recent rains have stirred up some cases of anthracnose in peaches and plums. Orchard floor and perimeter management of leguminous hosts and wild Prunus species can help prevent spread of this disease. Refer to the Southeastern Peach, Nectarine, and Plum Pest Management and Culture Guide for chemical recommendations to use pre-harvest. Peaches harvested in the Ridge are starting to get some size on them and are looking good.

Anthracnose on a peach. Photo from Sarah Scott

Peaches harvested on the Ridge are looking good. Photo from Sarah Scott.

Pee Dee Region

Tony Melton reports, “Only 1 farmer had butter beans to harvest. They were planted on March 23 and sneaked-by those last frosts. After these the next harvests will be in July because of the heat causing flower drop and reset during the cool week of June 10. It is drying out quickly and we will need another rain this week to keep crops going. Collards are really doing well since the cool spell gave them relief from the heat. Southern peas are flowering and need to be sprayed for cowpea cucurlio. Snapbeans took a real hit from the heat and there will be poor yields except for later planted ones the flowered during the cool spell.

The South Carolina Grower

Fruit and Vegetable News for Growers and Agribusinesses in South Carolina

Tag Archives: Insects

Field Update – 8/12/19

Field Update – 7/15/19

Field Update – 6/17/19