South Carolina Pest Management Handbook for Field Crops - 2017 SOYBEAN NEMATODE CONTROL John D. Mueller, Extension Soybean Pathologist

Nematode‐induced yield losses in South Carolina soybeans are caused primarily by Southern root‐knot, soybean cyst, Columbia lance, and reniform nematodes. Soybean is an excellent host for these nematode species and often sustains significant yield losses. Sting, lesion, and peanut root‐knot nematodes also cause yield losses in some fields. Use of nematicides for controlling nematodes on soybeans is often cost prohibitive. Use of a nematicide should be coupled where possible with the use of resistant varieties and in‐row subsoiling or deep tillage. In many instances nematode control may require rotation to a non‐host crop. Please see your South Carolina Soybean Production Guide for more in‐ depth information on nematode management.

NEMATICIDES AVAILABLE FOR CONTROLLING SOYBEAN NEMATODES. SEE LABELS FOR SPECIES CONTROLLED BY EACH PRODUCT. Active Rate per acre Nematicide ingredient for 38 inch rows Comments Release fumigant at least 12 inches from the Telone II 1,3‐dichloropropene 3.0 – 6.0 gallons soil surface. Must be applied 10 – 14 days prior to planting. Temik brand Apply granules in a 6 – 8 inch band and 15G Aldicarb Aldicarb 3.0 ‐ 5.0 lbs. immediately work into the soil or cover Pesticide & with soil. Plant seed into treated zone. Temik Brand Band may be applied over an open furrow. 15G Lock’n Load Aldicarb Pesticide Apply a 4‐6 inch band (T‐band) over open AgLogic 15G Aldicarb 7.0 lbs. seed furrow and immediately cover with soil by mechanical means Abamectin 3 fl. oz. Application by commercial seed treaters Avicta Complete Thiamethoxam 1.28 fl. oz. only. It has active ingredients to control Bean Mefenoxam 0.16 fl. oz. nematodes and seedling disease problems. Fludioxonil 0.08 fl. oz. All per cwt. of seed Potassium N‐ Inject 12 inches below planting depth and K‐Pam methyldithiocarbamate See Label seal immediately 14‐21 days before planting. Sodium Inject 12 inches below planting depth and Vapam HL methyldithiocarbamate See Label seal immediately 14‐21 days before planting. Applied only as a commercial seed AVICTA 500 FS Abamectin See Label treatment. Contains materials to control only nematodes.

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NEMATICIDES AVAILABLE FOR CONTROLLING SOYBEAN NEMATODES. SEE LABELS FOR SPECIES CONTROLLED BY EACH PRODUCT. (Cont.) Active Rate per acre Nematicide ingredient for 38 inch rows Comments Avicta Complete Abamectin Applied only as a commercial seed Bean Thiamethoxam See Label treatment. Contains materials to Mefenoxam control nematodes, seedling diseases Fludioxonil and thrips. Applied only as a commercial seed PONCHO/VOTiVO Clothiandin See Label treatment. Contains materials to Bacillus firmus I1582 control nematodes and thrips.

Clariva pn Pasteuria nishizawae – Pn1 1.0 to 3.0 fl. oz. per cwt. Effective only against Soybean cyst of seed nematode. Pasteuria nishizawae –PN1 Includes the nematicide Clariva pn, Clariva Complete Sedaxane Cruiser Maxx Beans Beans Thiamethoxam See label insecticide/fungicide and the Fludioxonil fungicide Vibrance. The only Mefenoxam nematode this will control is Soybean cyst nematode.

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