Ohio State University Extension/Research

Weed Control Guide for Ohio Field Crops

Corn: Postemergence Herbicides - Contact

Herbicide Formulation Product Rate Range

Buctril/atrazine 3L 1 1/2 - 3 pt

Tank-mix with: Accent, Banvel, 2,4-D, Stinger, Beacon.

Buctril/atrazine is a 1:2 premix of bromoxynil (Buctril) plus atrazine for control of most broadleaf weeds.
Mode of action: photosynthesis inhibitor.
Buctril/atrazine may be applied at a rate of 1 1/2 to 2 pints per acre after corn emergence and before corn is 12 inches tall. The 3-pint rate may be applied after corn reaches the 4-leaf stage and before corn is 12 inches tall.
Do not use surfactant, crop oil, liquid fertilizers, or other additives when applying Buctril/atrazine alone or with most other herbicides. Nonionic surfactant and fertilizer solution are allowed in some tank mixtures.
Apply in a volume of at least 10 gallons per acre at a minimum pressure of 30 psi using flat fan nozzles.

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Keith L. Smith, Associate Vice President for Ag. Adm. and Director, OSU Extension.

TDD No. 800-589-8292 (Ohio only) or 614-292-1868

Herbicide	Formulation	Product Rate Range
Buctril/atrazine	3L	1 1/2 - 3 pt