CHEMICAL WEED CONTROL FOR FIELD CROPS Hard Red Spring and Durum Wheat, Winter Wheat and Barley Product/A Herbicide (ai/A) Weeds When to Apply Remarks and Paragraphs Refer to page 6 for additional Fall, Early Preplant, and PRE Herbicides. Soil-Applied Herbicides Far-Go HRSW & DURUM. Wild oat. Spring: HRSW, Application before seeding: PPI with field cultivator set (triallate8) 1 qt / 10 lb 10G Durum and Barley. at 4 inches deep. (1 lb) Apply before or Two pass incorporation is recommended. BARLEY: after seeding. Application after seeding: Apply before kernel sprouts 1.25 qt/12.5 lb 10G PPI 3 or more days exceed 0.5 inch in length and incorporate with harrows (1.25 lb) before seeding. set more shallow than seed. A1-2 B1-2 C1 C8 S13 Buckle DURUM & Wild oat and Fall: Apply within 3 Do not apply to HRSW. (triallate8 & BARLEY. foxtails. weeks of freeze Incorporate within 24 hours after application. trifluralin3) 10 to 12.5 lb G up. Set 2nd incorporation more shallow than first. (1 to 1.25 lb & Spring: Stand reduction may occur. Do not apply on soil treated 0.3 to 0.4 lb) Barley only. with trifluralin the previous year. Prior to seeding. A1-2 B1-2 B7 C1 C8 C13 S3 S13 Y15 HRWW. HRWW: Fall. Use only in designated counties in North Dakota. Fall: 12.5 to 15 lbG Apply only to fields fallowed the previous year. HRSW. HRSW: Do not apply to soil treated with trifluralin the previous Spring: 10 lb G Spring PPI only. year. (1 lb & 0.3 lb) A1-2 B1-2 B7 C1 C8 C13 S13 Y15 Treflan / 1 pt 4E Foxtail. Spring: FOR BARLEY ONLY. generic trifluralin3 5 lb 10G PPI. Incorporate twice 2 to 3 inches deep. (0.5 lb) A1-2 B7 C1 C13 Y15 Not for 4 lb 10G FOR DURUM WHEAT ONLY. Winter Wheat (0.4 lb) For foxtail suppression only. A1-2 B7 C1 C13 S3 X1 Y15 3.5 to 4 lb 10G FOR HRSW ONLY. For suppression of foxtail only. (0.35 to 0.4 lb) Use west of Hwy 3 only. A1-2 B7 C1 C13 S2 Y15 1 pt 4E Spring: Plant 2 to 2.5 inches deep. Incorporate shallow twice (0.5 lb) After seeding. with flex-tyne or diamond harrow 1 to 1.5 inches deep. A1-2 B7 C1 C13 S3 Y15 1 pt 4E Fall: Incorporate once in fall within 24 hours after 5 lb 10G After September 1 application. Keep spring incorporation depth more (0.5 lb) until freeze-up. shallow than fall. Stand reduction may occur. A1-2 B1-2 B7 C1 C13 S3 Y15 3.5 to 5 lb 10G FOR HRSW AND DURUM ONLY. For foxtail (0.35 to 0.5 lb) suppression only. A1-2 B1-2 B7 C13 S3 Y15 Olympus HRWW. Japanese and PRE. Add NIS at 1 qt/100 gal for control of emerged species. (propoxy- 0.6 oz WDG downy brome, Maximum propoxycarbazone rate per year allowed carbazone2) (0.42 oz) mustard and from Olympus or with combined products is 0.84 oz Not for durum and pigweed species. ai/A in winter wheat or 0.28 oz ai/A in spring wheat. barley HRSW. C1 C12 S3 S6 Y2 Y5 Y15 Very Long 0.2 oz WDG Residual (0.14 oz) Pre-Pare HRSW. G. foxtail, mustard Preplant within 10 Add NIS at 1 qt/100 gal for control of emerged species. (flucarbazone2) 0.2 to 0.3 oz WDG and pigweeds. Soil days of planting or Maximum flucarbazone rate per year allowed from Pre- Not for durum and (0.14 to 0.21 oz) residue may PRE. Pare with combined products is 0.43 oz WDG. barley control y. foxtail, A1 C7 S3 S6 Y2 Y5 Y15 Short to Long wild oat, Japanese Residual and downy brome. 7 Hard Red Spring and Durum Wheat, Winter Wheat and Barley Product/A Herbicide (ai/A) Weeds When to Apply Remarks and Paragraphs POST-Applied Herbicides Prowl H20 1.5 to 3 pt Foxtail and some Wheat: Soil residue provides PRE control of weeds. Does not (pendimethalin3) (0.7 to 1.4 lb) small-seeded 1- to 3-leaf. control emerged weeds. Adjust rate for soil type. broadleaf weeds. Allow a 60 day PHI. Refer to label for tank-mixtures. Not for Barley A1-2 B1-2 B7 C1 C13 E10 Y15 Zidua 1 to 2 oz WDG Some small- Wheat: Soil residue provides PRE control of weeds. Requires 1 (pyroxasulfone15) (0.85 to 1.7 oz) seeded weeds. Emergence inch of rainfall for activation. Sequential rain events will through 4th tiller. improve weed control. Refer to label for use directions Not for Barley or and restrictions. Durum wheat A1-2 C1 D6 Y15 MCPA4 amine 0.5 to 1.33 pt 4SL Broadleaf weeds. Crop: 3-leaf until Use high rate for large or perennial weeds. MCPA4 ester 0.5 to 1.33 pt 4EC prior to boot. A3 A6 C1-2 S6 (0.25 to 0.66 lb) Winter wheat: In spring - well 4 tillered until prior to 2,4-D amine 0.5 to 1 pt 4SL boot. Follow label directions as 2,4-D labels vary on 2,4-D4 ester 0.5 to 1 pt 4EC application timing. (0.25 to 0.5 lb) Do not apply to Do not apply from early boot to dough stage. winter wheat in fall. A3 A6 B3 C1-2 S6 Dicamba4 2 to 4 fl oz Broadleaf weeds HRSW/Durum: Dicamba must be applied before 6-leaf stage. (1 to 2 oz) including wild Up to 5-leaf. Use low dicamba rate and high MCPA rate on Barley: 2 to 3 fl oz buckwheat, 4-leaf HRSW or durum. (1 to 1.5 oz) sunflower, Russian Barley: Barley is relatively susceptible to injury from dicamba. thistle and kochia. Up to 4-leaf. Do not apply dicamba with 2,4-D to barley. A3 A6-7 B6 C1-2 C4 S1 S5-12 Y9 Y15 HRWW: Pre-joint. Pulsar 8.3 - 12.5 fl oz Broadleaf weeds. Wheat: Up to 5- Add NIS at 1 qt/100 gal. No adjuvant is required if tank (dicamba4 & (0.75 to 1.1 oz & leaf stage. mix partner has surfactant in the formulation. May be fluroxypyr4) 1 to 1.5 oz) Barley: Up to 4-leaf mixed with several broadleaf and grass herbicides. stage. Allow a 40 day PHI. A3 A6-7 B6 C1 C4-5 S5-12 Starane / 0.67 pt 1.5EC Kochia, volunteer Crop: 2-leaf Refer to label for weeds controlled, registered tank-mix generic fluroxypyr4 0.35 pt 2.8EC flax, and few other through flag leaf options, and rates. Commercial mixture with MCPA 5 oz 40WDG broadleaf weeds. emergence. ester available as Hat Trick. (2 oz) Weeds: Small. A3 C5 S6 S9-10 Curtail M / generic 1.75 to 2.33 pt Broadleaf weeds Crop: Apply to Canada thistle at rosette to early bolting stage. clopyralid4 & (0.09 to 0.12 lb & and Canada thistle. 3-leaf until prior to Do not harvest hay from treated fields. MCPA4 0.5 to 0.68 lb) boot. A3 C5 S5 S8-12 T3 T9 Y15 Curtail / generic 2 to 2.67 pt Crop: clopyralid4 & 2,4-D4 (0.09 to 0.13 lb & 4-leaf until prior to 0.5 to 0.67 lb) boot. WideMatch / 1 to 1.33 pt Broadleaf weeds Crop: 3-leaf An economical formulation of clopyralid. generic clopyralid4 (0.09 to 0.125 lb & including kochia, through flag leaf Apply with 2,4-D, MCPA, or thifensulfuron to increase & fluroxypyr4 0.09 to 0.125 lb) wild buckwheat, emergence. spectrum of broadleaf weed control. Does not vol. flax, and antagonize POST grass herbicides labeled in small Canada thistle. Weeds: Up to 4 grains. WideMatch commercial mixture with MCPA inches tall or ester available as Hat Trick or Weld. vining. Refer to label for application information. A3 C5 S1 S4-10 S12 T3 T9 Y15 PerfectMatch 1 pt Also controls Crop: 3-leaf until (pyroxsulam2 & (0.014 lb & foxtail, wild oat, prior to jointing. Also S2-3 S13 clopyralid4 & 0.094 lb & barnyardgrass, and Weeds: Up to 4 fluroxypyr4) 0.094 lb) partial control of inches tall. Not for Barley bromes. 8 Hard Red Spring and Durum Wheat, Winter Wheat and Barley Product/A Herbicide (ai/A) Weeds When to Apply Remarks and Paragraphs Buctril / 1 to 2 pt Small broadleaf Crop: Contact, non-residual herbicide requiring thorough generic bromoxynil6 (0.25 to 0.5 lb) weeds including Emergence until coverage. Most active in hot and sunny conditions. small kochia. prior to boot. Refer to label for tank-mix options. Bronate / generic 1 to 2 pt 4EC Small broadleaf Crop: A3 C1-2 S1 S6-12 bromoxynil6 & 0.8 to 1.6 pt 5EC weeds including 3-leaf stage until MCPA4 (0.25 to 0.5 lb & wild buckwheat, prior to boot. 0.25 to 0.5 lb) sunflower, Russian WECO Max / 0.75 to 1.5 pt thistle and kochia. generic bromoxynil6 (0.18 to 0.38 lb & A3 C1-2 S1 S6-12 & 2,4-D4 0.25 to 0.5 lb) Rates vary by label. Starane NXT / 14 to 21 fl oz Crop: Higher rates or a tank-mix partner may be required for generic bromoxynil6 (4 to 6 oz & 3-leaf to flag leaf high weed populations and weeds greater than 4 & fluroxypyr4 1 to 1.5 oz) emergence. inches tall.