Harvest Aid

carfentrazone (Aim and other trade names)

Rate 0.031 to 0.096 lb ai/a, (2.0 to 6.1 oz/a Aim EC)

Time When 75% of bolls have turned brown, up to day of harvest.

Remarks Apply with MSO or COC at 1 to 2 % v/v, in a minimum of 15 GPA. The addition of AMS may improve efficacy.

Caution Do not exceed 0.096 lb ai/a per season.

Site of action Group 14: protoporphyrinogen oxidase (PPO) inhibitor.

Chemical family Triazolinone

flumioxazin (Valor)

Rate 0.048 to 0.064 lb ai/a (1.5 to 2.0 oz/a Valor)

Time Apply after 75% of bolls are brown and no less than 5 days before harvest.

Remarks Apply in 15 to 30 gal/a. Use 1 quart/a methylated seed oil.

Caution Valor is not labeled for this use in all states; see supplemental label for listed states. Preharvest interval is 5 days. Do not exceed 0.092 lb ai/a (3.0 oz/a Valor) per growing season.

Site of action Group 14: protoporphyrinogen oxidase (PPO) inhibitor

Chemical family Diphenylether

glyphosate (several trade names)

Rate 1.125 lb ae/a

Time Apply when flax is mature, but at least seven days pre-harvest.

Remarks Not all glyphosate labels include this use.

Caution Pre harvest interval is 7 days. Do not exceed maximum season rate of 6 lb ae/a, including preplant, at planting or preemergence applications. Do not plant crops not listed on the label within 30 days of application.

Site of action Group 9: inhibits EPSP synthase

Chemical family None generally accepted

saflufenacil (Sharpen)

Rate 0.022 to 0.044 lb ai/a (1.0 to 2.0 oz/a Sharpen)

Time Apply when 70% to 80% of bolls are brown. It may take up to 7 days for optimum desiccation.

Remarks Flax is listed under oilseed crops, subgroup 20A. Use methylated seed oil plus ammonium-based adjuvant.

Caution Do not apply to crops grown for seed. Preharvest interval is 3 days.

Site of action Group 14: protoporphyrinogen oxidase (PPO) inhibitor

Chemical family Uracil (pyrimidinedione) amide