Weed Control Guide for Ohio Field Crops

Corn: Postemergence Herbicides - Systemic

Herbicide	Formulation	Product Rate Range
NorthStar	47DF	5 oz

Tank-mix with: Atrazine, Accent, Resource, Banvel, Clarity, Marksman.

• NorthStar is a premix of primisulfuron (Beacon) plus dicamba (Banvel) for control of most annual broadleaf weeds and suppression or control of annual and perennial grasses. NorthStar will suppress a number of perennial broadleaf weeds. See NorthStar, Beacon, and Banvel labels for more information and precautions on use.
• Mode of action: ALS inbibitor (primisulfuron), growth regulator (dicamba).
• Can be applied broadcast or directed to field corn that is between 4 and 20 inches tall. Apply using drop nozzles when corn is 20 inches (V6) up to 36 inches tall or 15 days before tassel emergence, whichever occurs first.
• For popcorn and seed corn inbreds, apply as a directed spray using drop nozzles when corn is between 10 and 36 inches tall or 15 days before tassel emergence, whichever occurs first. Inbred lines and popcorn hybrids should be thoroughly tested for sensitivity to NorthStar before treating large acreages.
• Apply with nonionic surfactant (0.25% v/v) or crop oil concentrate (1 to 4 pints/A), but do not use crop oil concentrate if corn is more than 12 inches tall. Nitrogen fertilizer solution (2 to 4 qts/A) or ammonium sulfate (2 to 4 lbs/A) may also be added.

Back | Forward | Table of Contents