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Planting Wheat This Fall? Check Herbicide Rotational Intervals

October 5, 2001
The harvest has been progressing at a good pace so far this fall, and wheat planting will soon begin. We would remind producers to check herbicide labels for rotational intervals before planting wheat. Several herbicide labels have lengthy rotational intervals that will preclude planting wheat this fall. The following rotational intervals were reproduced from Tables 1 and 2 of the 2001 Illinois Pest Management Handbook.

Corn herbicide rotational intervals:

Anytime--Stinger

2 months--Permit

3 months--Beacon, Pursuit, NorthStar, Spirit

4 months--Degree, Harness, DoublePlay, TopNotch, Hornet, Python, Lightning, Pursuit Plus, Accent, Accent Gold, Basis, Celebrity Plus

6 months--Balance Pro

10 months--Marksman, Basis Gold

12 months--Epic, Axiom

15 months--Degree Xtra, Harness Xtra, FulTime, Laddok S-12

Next year--AAtrex, atrazine, Bicep II Magnum, Bicep Lite II Magnum, Buctril + atrazine, Bullet, Guardsman, LeadOff, Liberty ATZ, Princep, ReadyMaster ATZ

2 years--Axiom AT

Soybean herbicide rotational intervals:

3 months--Classic, Synchrony STS, FirstRate, Scepterb (Region 2), Extreme, Pursuit, Raptor

4 months--Canopya, Python, Backdraft (Region 2), Squadronb (Region 2), Steel (Region 2), Pursuit Plus, Sencor, Authority, Canopy XLa, Flexstar

4.5 months--Boundary

12 months--Axiom, Domain, Command

18 months--Backdraft (Region 3), Scepter (Region 3)

aMidwest states' rate, soil pH <6.8.

bRotational interval increases to 15 months with sequential (soil followed by postemergence) imazaquin applications.

--Aaron Hager and Christy Sprague

Author: Aaron Hager Christy Sprague


The Pest Management and Crop Development Bulletin
Executive Editor: Kevin Steffey, Extension Entomologist

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