Weed Management Handbook

clopyralid (Stinger)

Rate 0.094 lb ae/A to 0.188 lb ae/A clopyralid (0.25 to 0.5 pint/A Stinger 3SC) to control annual broadleaf weeds. To control Canada thistle and suppress perennial sowthistle, use 0.125 to 0.25 lb ae/A clopyralid (0.5 to 0.66 pint/A Stinger 3SC).

clethodim (Select, Select Max and other trade names)

Rate 0.094 to 0.25 lb ai/A (6 to 16 fl oz/A Select 2EC) or 0.068 to 0.243 lb ai/A (9 to 32 fl oz/A Select Max 0.97EC)

Time Apply to actively growing grasses 1 to 6 inches tall.

dimethenamid-P (Outlook)

Rate 0.56 to 0.984 lb ai/A (12 to 21 fl oz/A Outlook 6EC)

Time Apply after sugar beets have two true (fully expanded) leaves or injury may occur. Outlook may also be applied after sugar beets have reached the nine-leaf stage but before the 12-leaf stage for extended control.

carfentrazone-ethyl (Aim EC, 2 lb ai/gal, 40% WDG or several trade names)

Rate 3.2 to 5.8 fl oz/A of the EC, 2 to 3.6 oz/A of the WDG (0.05 to 0.09 lb ai/A). Do not exceed 7.2 oz/A EC or 11.6 oz/A WDG (0.018 lb ai/A) per crop season as a desiccant.

Not all tank-mixtures labeled for use in potatoes are listed for each herbicide in this section. See the potato herbicide labels for allowed tank-mixtures. Read and follow applicable "Restrictions and Limitations and Directions for Use" on all product labels in a tank-mixture. The most restrictive labeling applies to use of tank-mixtures.

Target weed species in a given field with the most appropriate herbicide tank mixtures for those species (i.e., the same mixture may not be the best across all fields in an operation).

EPTC (Eptam 7E or several trade names, 7 lb ai/gal)

Soil active, only

Rate 3.5 to 7 pints/A (3 to 6 lb ai/A)

Time Preplant: preplant incorporated or preemergence. When applied after planting apply and immediately incorporate into soil before planting potatoes. Preemergence: after a clean cultivation (hilling).

EPTC (Eptam 7E or several trade names, 7 lb ai/A)

Soil active, only

Apply and incorporate just before planting potatoes for quackgrass control.

Rate 4.5 pints/A (4 lb ai/A)