| Sugarbeet | ||||
| Herbicide | Formulation/A (Act.Ingred.lb/A)* |
Weeds | When to apply | Remarks |
| Betamix (Desmedipham + Phenmedipham) ------------------- Betanex (Desmedipham) |
0.75 to 7.5
pt (0.06 to 0.6 + 0.06 to 0.6) ----------------- 0.75 to 7.5 pt (0.12 to 1.2) |
Most annual Broadleaf weeds |
Postemergence when broadleaf weeds are from cotyledon to 4-leaf stage. Sugarbeet with less than 4 leaves will tolerate 0.12 to 0.5 lb/A and sugarbeet with 4 leaves or more will tolerate higher rates | Risk of sugarbeet injury is increased by morning or midday application and by certain environments. Split application with reduced rates has reduces sugarbeet injury and increased weed control compared to single full dose application. Rates should be reduced by 25 to 33% with small sugarbeet if aerial or high pressure (>100 psi) application is used or if the field was treated with a soil-applied herbicide |
| Betamix
Progress (Desmedipham + Phenmedipham + Ethofumesate) |
0.8 to 3.3 pt (0.06 to 0.25 + 0.06 to 0.25 + 0.06 to 0.25) |
Most annual broadleaf weeds | Postemergence from cotyledon to 4-leaf stage of sugarbeet | Betamix and Mortron SC can be tank-mixed with a 1:1:1 ratio of active ingredients to substitute for Betamix Progress. Total rate of desmedipham + phenmedipham + ethofumesate in lb/A should equal the normal rate of desmedipham for a given situation |
| Betanex + (Desmedipham) Nortron SC (ethofumesate) |
0.75 to 3 pt
+ 0.12 to 0.5 pt (0.12 to 0.5 + 0.06 to 0.25) |
Most annual broadleaf weeds | Postemergence from cotyledon to 4-leaf stage of sugarbeet. | Herbicides should be in 2:1 ratio of active ingredient. The total rate of desmedipham +ethofumesate in lb/A should equal the normal rate of desmedipham for a given situation. |
| Eptam (EPTC) | 2.3 to 3.4 pt
(2 to 3) --------------- 4.5 to 5.25 pt 7E. 20 to 22.5 lb 20G (4 to 4.5) |
Annual grasses and some broadleaf weeds | Preplant
incorporated ------------------- Fall incorporated after October 15 to freeze-up. |
Some stand reduction and temporary stunting may occur from the use of EPTC. Weak on wild mustard. |
| Eptam (EPTC +) Ro-Neet (cycloate) |
1.1 to 2.3 + 2.7 to 3.3 pt (1 to 2 + 2 to 2.5) --------------- 1.1 to 2.9 + 2.7 to 4 pt (1 to 2.5 + 2 to 3) |
Annual grasses and some broadleaf weeds | Preplant
incorporated ------------------ Fall incorporated after October 15 until freeze-up. |
Less sugarbeet injury than from Eptam alone and less expensive than Ro-Neet alone. See narrative for suggested rates for various soil textures and organic matter content. |
| Roundup Roundup RT Glyphos (Glyphosate) |
0.5 tp 2 pt
of a 3 lb ae/gal conc. (0.19 to -.75) |
Emerged grasses and broadleaf weeds | Preplant or anytime prior to crop emergence. | A nonselective, translocated, postemergence herbicide. No soil residual activity. Apply with a nonionic surfactant at 0.5% v/v. |
| Gramoxone Extra (Paraquat) |
1.5 to 3 pt (0.47 to 0.94) |
Emerged annual grasses and broadleaf weeds | Preplant or anytime prior to crop emergence. | A non-selective, postemergence herbicide. No soil residual activity. Apply with nonionic surfactant. Good coverage is essential. Restricted use. |
| Sugarbeet | ||||
|---|---|---|---|---|
| Herbicide | Formulation/A (Act. Ingred.lb/A)* |
Weeds | When to Apply | Remarks |
| Herbicide 273 (Endothall) |
0.67 to 4 pt (0.25 to 1.5) |
Wild buckwheat, smartweed | Sugarbeet should have 4 to 6 leaves for 0/5 lb/A or more. Use 0.25 to 0.33 lb/A on cotyledon to 2-leaf sugarbeet. Do not apply later than 40 days after emergence. | Endothall may cause excessive injury over 80 F especially to 4 leaf or smaller sugarbeet. Endothall is ineffective at temperatures below 60F or when weeds are drought stressed. |
| Nortron SC (Ethofumesate) |
3.8 to 7.5 pt F (1.9 to 3.75) |
Many annual grasses and broadleaf weeds. Especially goods on redroot pigweed | Preemergence or preplant incorporated | Incorporation generally improves weed control. Band application reduces cost and risk of carryover into the next year. |
| Poast Ultima 160 (Sehtoxydim) |
0.5 to 2.5 pt 10 to 30 fl oz (0.1 to 0.5) |
Annual and perennial grasses | Wild oats:1 to 4 in. Foxtail: 3 to 8 in. Vol. wheat or barley: 2 to 6 in. |
Always apply with an oil additive and with ammonium sulfate or 28% liquid nitrogen for certain weed species. Apply to actively growing grasses. See narrative for rates for different grass species/ |
| Poast Plus (Sethoxydim) |
0.19 to 0.28 (1.5 to 2.2 pt) |
Annual grasses. | Wild oats: 1 to 4 in. Foxtail: 3 to 8 in. Vol. wheat or barely:1 to 6 in. |
Labelled inly in North Dakota.See comments about Poast. |
| Prism (clethodim) |
0.81 to 1.06 pt (0.095 to 0.125) ------------------- 1.06 to 2.1 pt (0.125 to 0.25) |
Annual grasses ------------------ Quackgrass |
Wild oats: 2 to 6 in.
Foxtail: 2 to 8 in. Vol. wheat or barley: 2 to 6 in. |
Always apply with an oil additive. Apply to actively growing grasses. Use higher rate on dense and/or large grasses. |
| Pyramin SC (Pyrazon) |
5.5 to 13.5 pt F (3.1 to 7.6) |
Most broadleaf weeds | Preemergence | Has been less effective on soils with more than 5% organic matter. Incorporation improves weed control from pyramin. |
| Ro-Neet (Cycloate) |
4 to 5.3 pt 6 E ( 3 to 4) ------------------- 5.3 pt 6 E (4) |
Annual grasses and some broadleaf weeds | Preplant incorporated ------------------- Fall incorporated after Oct. 15 until freeze-up. |
Sugarbeet has better tolerance to Ro-Neet than to Eptam. Weak on wild mustard. Weed control poor on fine textured, high organic matter soils. |
| Stinger (Clopyralid) |
0.25 to 0.66 pt (0.09 to 0.25) |
Canada thistle, common cockelbur, sunflower, marshelder, wild buckwheat | Postemergence to sugarbeet with 2 to 8 leaves | See narrative for rates and treatment sizes for various species. Clopyralid may be tank-mixed with desmedipham or phenmedipham |
| Trifluralin | 1.5 pt 4 E 15 oz 80 DC (0.75) |
Late emerging annual grass and some broadleaf weeds | Sugarbeet 2 to 6 inches tall and wellrooted to withstand incorporation | Must be incorporated. Exposed beet roots must be covered with soil before application. Emerged weeds not controlled. May be applied over the tops of the sugarbeet. |
* Rates are shown as formulated product/A (top line) and lb/A active ingredient in parentheses. Some herbicides have more than one type formulation; in this case refer to lb active ingredient per acre and check herbicide label for formulated product/A.