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Cover Crop Overview
Cover Crops
Overview 		Michigan Cover
Crop Species 		Cover Crops in
Cropping Systems 		Organic Field
Crop Research 		Useful Links
Controlling Cover Crops
Dale R. Mutch, District Agent, MSUE Kellogg Biological Station
James J. Kells, Professor, MSU Crop & Soil Sciences
Fall Control
  crimson clover red clover berseem clover annual medic hairy vetch oilseed radish annual ryegrass winter wheat cereal rye triticale oats
Glyphosate (0.75 lb a.e./A)ad NR F-G WK WK F-G WK NR NR NR NR WK
Glyphosate (1.5 lb a.e./A)bd NR G-E WK WK G-E WK NR NR NR NR WK
2,4-D ester (1.0 lb a.i./A)c NR F WK WK F WK NR NR NR NR WK
Glyphosate (0.75 lb a.e./A)ad + 2,4-D ester (1.0 lb a.i./A)c NR G WK WK G WK NR NR NR NR WK
Glyphosate (1.5 lb a.e./A)bd + 2,4-D ester (1.0 lb a.i./A)c NR G-E WK WK G-E WK NR NR NR NR WK
P = Poor; F = Fair; G = Good; E = Excellent; N = None; WK = Most season winter killed;  NR = Not recommended
Spring Control
  crimson clover red clover berseem clover annual medi hairy vetch oilseed radish annual ryegrass winter wheat cereal rye triticale oats
Glyphosate (0.75 lb a.e./A)ad E F WK WK F WK F-G E E E WK
Glyphosate (1.5 lb a.e./A)bd E F-G WK WK F-G WK G E E E WK
2,4-D ester (1.0 lb a.i./A)c E F-G WK WK F-G WK N N N N WK
Glyphosate (0.75 lb a.e./A)ad + 2,4-D ester (1.0 lb a.i./A)c E F-G WK WK F-G WK F-G E E E WK
Glyphosate (1.5 lb a.e./A)bd + 2,4-D ester (1.0 lb a.i./A)c E G WK WK G WK G E E E WK
Moldboard Plow E E WK WK G-E WK E E E E WK
P = Poor; F = Fair; G = Good; E = Excellent; N = None; WK = Most season winter killed;  NR = Not recommended
a. Rate for 3 lb a.e./gal glyphosate formulations = 32 fl oz/A.
  Rate for 3.7 lb a.e./gal glyphosate formulations = 26 fl oz/A.
  Rate for 4.5 lb a.e./gal glyphosate formulations = 22 fl oz/A.
  Rate for 65% a.e. glyphosate formulations = 18.5 oz/A.
b. Rate for 3 lb a.e./gal glyphosate formulations = 64 fl oz/A.
  Rate for 3.7 lb a.e./gal glyphosate formulations = 52 fl oz/A.
  Rate for 4.5 lb a.e./gal glyphosate formulations = 44 fl oz/A.
  Rate for 65% a.e. glyphosate formulations = 37 oz/A.
c. Rate for 4 lb a.i./gal 2,4-D ester formulations = 1 qt/A.
  Rate for 6 lb a.i./gal 2,4-D ester formulations = 21 fl oz/A.
d. Addition of ammonium sulfate (AMS) at 17 lb/100 gal of water often improves control. Always check label for instructions on the addition of a non-ionic surfactant.

e.

 Ideal timing is four to six weeks after mowing. Mow in late August to early September and treat in early- to mid-October in central and southern counties.
f. Treat when plants reach at least six inches tall.

 

Herbicide suppliment from MSU Weed Control Guide for Field Crops
For more information, contact Dale Mutch or Todd Martin at Michigan State University's Kellogg Biological Station Land and Water Program, 3700 E. Gull Lake Dr., Hickory Corners, MI. 49060-9516, or call 800-521-2619.
  

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