Preharvest Weed Control

2,4-D (several trade names)

Rate 0.5 to 1 lb ae/a

Time Apply when oats are in hard dough stage, to control weeds that will interfere with harvest.

Remarks Results will be best when soil moisture is sufficient for active weed growth. Restricted entry interval (REI) is 12 hours for the low volatile ester (LVE) formulation and 48 hours for the amine formulation.

Caution Do not permit 2,4-D to drift off target. The preharvest interval is 14 days. Maximum of 1.75 lb ae/a (3.6 pints/a) per crop cycle. Limited to one preharvest application per crop cycle. Do not apply to fields underseeded to legumes.

Site of action Group 4: synthetic auxin

Chemical family Phenoxy acetic acid

carfentrazone (Aim)

Rate Apply up to 0.031 lb ai/a (2 fl oz/a Aim 2EC)

Time Apply when crop is mature and grain is in hard dough stage, to control weeds that will interfere with harvest. Do not apply within 7 days of harvest.

Remarks Use MSO or COC at 1 to 2 % v/v (1 to 2 gallons/100 gal of spray solution) for harvest aid. Coverage is essential for satisfactory performance. Repeat application if necessary. Restricted entry interval (REI) is 12 hours.

Caution Do not exceed 0.031 lb ai/a (2 fl oz/A) per season for all Aim applications. There is a 3 day preharvest interval. If applied as a tank-mixture, refer to the other product's label for restrictions on tank mixing and observe all label precautions, instructions, and rotational cropping restrictions. Do not apply this product through any irrigation system.

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

Chemical family Triazolinone