Trade name(s) Assure II, Targa
Manufacturer(s) DuPont
Formulation(s) 0.88 lb/gal emulsifiable concentrate
Remarks A selective postemergence grass herbicide. Controls most annual and perennial grasses including quackgrass and Johnsongrass. A nonionic surfactant or crop oil concentrate is required for maximum effectiveness.
Water solubility 0.3 ppm at 68°F
Storage conditions Do not store below 32°F.
Acute toxicity LD50 - 5,700 mg/kg
Action in plant Inhibits an enzyme (ACCase) that catalyzes the first step in fatty acid synthesis. This blocks production of new membranes required for cell growth.
Site of action Group 1: acetyl CoA carboxylase (ACCase) inhibitor
Chemical family Aryloxyphenoxy propionate
Koc Average is 510 mL/g for quizalofop ethyl ester
Tim Miller
Revised September 2012
PEAS (GREEN OR ENGLISH)—General Weed Management Strategy
Peas are drilled in closely spaced rows early in spring, which limits weed emergence and species diversity. Most growers apply herbicides to suppress or eliminate weed competition, or potential contamination of harvested product. Subsequent crop rotations during the same season limit herbicide choices to those exhibiting brief soil residuals.
PEAS (GREEN OR ENGLISH)—Stale Seedbed Method
Ed Peachey
Revised March 2013
BEANS, SNAP—General Weed Management Strategy
According to USDA standards and processor quality control, harvested beans must be free of nightshade berries, Canada thistle buds, pigweed stems, and mustard pods. Crop rotations, close row spacings, early season weed control, and cultivation (except in rocky or clod soils) are combined with herbicides to minimize weed competition and contamination of product.
BEANS, SNAP—Site Preparation, and Stale Seedbeds
Don Morishita
Revised March 2013
Note All rates listed are stated as broadcast equivalent (i.e., the amount that would be required for weed control if broadcast sprayed between rows as well as in the row). If sugar beet herbicides are applied in a band, the amount required for 1 acre of beets can be calculated as: broadcast equivalent x (band width ÷ distance between rows).
SUGAR BEETS—Annual Grass and Broadleaf Weeds
cycloate (Ro-Neet SB)
Rick Boydston
Revised March 2013
MINT—Annual Grass and Broadleaf Weeds in New Plantings and Established Crop
sulfentrazone (Spartan 4F)
Rate 0.14 to 0.375 lb ai/A (4.5 to 12 fl oz/A product)
Dan Ball
Revised March 2013
CANOLA—Annual Grass and Some Broadleaf Weeds
ethalfluralin (Sonalan)
Rate 0.56 to 0.938 lb ai/A (1.5 to 2.5 pints/A Sonalan HFP)
Time Apply preplant and incorporate following label instructions.
Caution Do not exceed labeled rates because crop may be injured. Do not graze crop grown in treated soil.
Tim Prather
Revised December 2012
Note Several herbicides labeled for alfalfa grown for seed are not registered for alfalfa grown for forage.
ALFALFA SEED—Annual Grass and Broadleaf Weeds in New Seedings
benefin (Balan 60 DF)
Rate 1.2 to 1.5 lb ai/A (2 to 2.5 lb/A)
Dan Ball
Revised March 2013
Garbanzo beans (chickpeas) are included in EPA designated Crop Group 6C that includes peas and beans. Therefore, labels for dry beans and peas may have special restrictions regarding garbanzo beans.
GARBANZO BEANS —Wild Oat
Preplant or preemergence
triallate (Far-Go or Avadex)
Rate 1.5 lb ai/A (1.5 quarts/A Far-Go)
Dan Ball
Revised March 2013
LENTILS—Wild Oat
Preplant or preemergence
triallate (Far-Go, Avadex)
Rate 1.5 lb ai/A (3 pints/A)
Time Apply preplant or postplant, but before lentil emergence; incorporate thoroughly 1 to 2 inches deep.
Dan Ball
Revised March 2013
PEAS, DRY—Annual Grass and Broadleaf Weeds
Preplant incorporated
ethalfluralin (Sonalan)
Rate 0.56 to 0.75 lb ai/A (1.5 to 2 pints/A Sonalan HFP)
Time Apply preplant and incorporate by following label instructions.
Don Morishita
Revised March 2013
Dry beans are sensitive to weed competition. Weed growth reduces bean yields by competing for light, moisture, and nutrients. High weed populations also are likely to cause a buildup of disease and/or insect problems that may affect bean growth, development, and marketability. Weeds also increase harvest losses, reduce bean quality, and make seed cleaning more difficult and expensive.
