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AGRICUL TUJ:lAL EXTENSION SERVICE UNIVERSITY OF MINNESOTA
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\ .. _., .-·· .. -.~1~-.-~~rr-:1 AGRICULTURAL CHEMICALS \ -· _.;-,< ,. •-- . FACT SHEET No. 6-Revised 1979 Chemic~l$,·!9r~:w,eed Control in Corn GERALD R. MILLER \,_,.,, ....
This fact sheet is intended only as a summary of suggested alter Herbicide -names and formulations native chemicals for weed control in corn. Label information Common Trade Concentration and should be read and followed exactly. For further information, name name commercial formulation 1 see Extension Bulletin 400, Cultural and Chemical Weed Control in Field Crops. Alachlor Lasso 4 lb/gal L Lasso II 15%G Selection of an effective chemical or combination of chemicals Atrazine Mtrex, 80% WP, 4 lb/gal L should be based on consideration of the following factors: others 90% WDG -Clearance status of the chemical Atrazine and propachlor Mtram 20%G -Use of the crop Bentazon Basagran 4 lb/gal L -Potential for soil residues that may affect following crops Butylate and protectant Sutan+ 6.7 lb/gal L -Kinds of weeds Cyanazine Bladex 80%WP, 15%G, 4 lb/gal L -Soil texture Dicamba Banvel 4 lb/gal L -pH of soil Dicamba and 2, 4-D Banvel-K 1.25 lb/gal dicamba -Amount of organic matter in the soil 2.50 lb/gal 2,4-D -Formulation of the chemical EPTC and protectant Eradicane 6.7 lb/gal L -Application equipment available Linuron Lorox 50%WP -Potential for drift problems Metolachlor Dual 6 or 8 lb/gal L Pendimethalin Prowl 4 lb/gal L Propachlor Sexton, 65% WP, 20% G, 4 lb/gal L Ramrod 2,4-D several various ·t G = Granular, L = Liquid, WP=Wettable Powder, WDG =Water Dispers Effectiveness of herbicides on weeds in corn 1 sible Granule
Preplanting Preemergence C Postemergence -;;;... ~ ...0 a, a, C X .c: .c: a, ...... co ... OJ 0 ai a, 0 0 0 .c: a, a, .c: C .c: ... 0 - c_ c_ CC- ... a,- a, -"C a, 0- 0 ... + .!: x a, x· a, x .0- 0 .c: 0 c- ·;;:; X .0- 0"' 0"' C a, "' - 0 ... 0 X "'- C- ·;;:; ~ -o ..."' 0 II) ~<( DO NOT USE THIS FACT SHEET AFTER 1979 lssu1;1d in furtherance of cooperative extension work in agriculture and home economics, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. Roland H. Abraham, Director of Agricultural Extension Service, University of Minnesota, St. Paul, Minnesota 55108. The University of Minnesota, including the Agricultural Extension Service, is committed to the policy that all persons shall have equal access to its programs, facilities, and employment without regard to rac, UNIVERSITY o·F M.INNESOTA 1• ~ lll~ll~HIIHIIHlillrnll!HllmlllHll!IIIII 3 1951 D01 623 867 M