carfentrazone (Aim EC)
Rate 0.016 to 0.096 lb ai/A (1.0 to 6.1 oz/A Aim EC)
Time Apply at maturity when 80 to 90% of seed pods are yellow or buck skin color and only 30% of green leaves remain on the plant.
Remarks Can be applied up to 0 days before harvest. Use a minimum of 15 gal of finished spray per acre for ground application and 5 gal per acre for aerial application. MSO or COC is required at 1 to 2% v/v. The addition of liquid nitrogen fertilizer at 2 to 4% v/v may enhance performance.
Caution Do not apply more than 6.1 oz/A per season.
Site of action Group 14: protoporphyrinogen oxidase (PPO) inhibitor
Chemical family Triazinone
flumioxazin (Valor EZ, Chateau EZ and other trade names)
Rate 0.078 lb ai/A (3 oz/A Valor EZ)
Time Apply when crop is mature and at least 80% of the pods are yellowing and mostly ripe and no more than 40% of the leaves are still green.
Remarks Preharvest interval is 5 days. Use COC or MSO at 2% v/v. A spray grade nitrogen source (AMS at 2.0 to 2.5 lb/A or 28 to 32% nitrogen solution) may be added to enhance desiccation. To ensure thorough coverage, use 15 to 30 gal/A spray solution.
Caution Do not make more than 1 application of Valor EZ per year.
Site of action Group 14: protoporphyrinogen oxidase (PPO) inhibitor
Chemical family N-phenylphthalimide
glyphosate (several trade names)
Rate 0.6 to 2.25 glyphosate ae/A (product rate will vary depending on formulation)
Time Apply to crop at the hard dough stage.
Remarks Preharvest interval is 7 days.
Caution Only certain formulations are labeled. See label for adjuvant use. Do not feed treated vines or hay to livestock.
Site of action Group 9: inhibits EPSP synthase
Chemical family None generally accepted
paraquat (Gramoxone SL 3.0 and other trade names)
Rate 0.3 to 0.49 lb ai/A (0.8 to 1.3 pints/A Gramoxone SL 3.0)
Time Apply when crop is mature: this means at least 80% of pods are yellowing and mostly ripe with no more than 40% of leaves still green.
Remarks Use with a nonionic surfactant at 0.25 % v/v. Split applications permitted. Do not exceed two applications per season or 1.3 pints/A of Gramoxone SL 3.0. Apply in at least 20 gal/A water by ground or in at least 5 gal/A water by air.
Caution A restricted-use herbicide. Do not allow drift from target site. Do not apply within 7 days of harvest.
Site of action Group 22: photosystem I electron diversion
Chemical family Bipyridilium
saflufenacil (Sharpen)
Rate 0.022 to 0.044 lb ai/A (1.0 to 2.0 oz/A Sharpen)
Time Apply over the top of garbanzo beans that have reached physiological maturity (at least 80% yellow/brown pods and no more than 40% of leaves are still green).
Remarks Allow up to 10 days for optimum desiccation effect. Thorough spray coverage and an MSO plus ammonium-based adjuvant system are required for optimum desiccation.
Caution Maximum cumulative amount per cropping season for desiccation uses is 2.0 oz/A. Do not apply within 2 days of harvest.
Site of action Group 14: protoporphyrinogen oxidase (PPO) inhibitor
Chemical family Uracil