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Annual Grass Control in Cool Season Turf with Sequential Applications of Unlike Preemergence Herbicides

Published online by Cambridge University Press:  12 June 2017

Zachary J. Reicher ,
Clark S. Throssell  and
Jeff L. Lefton
Zachary J. Reicher
Affiliation:
Dep. Agronomy, Purdue University, West Lafayette, IN 47907
Clark S. Throssell
Affiliation:
Dep. Agronomy, Purdue University, West Lafayette, IN 47907
Jeff L. Lefton
Affiliation:
Dep. Agronomy, Purdue University, West Lafayette, IN 47907
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Abstract

Control of goosegrass and large crabgrass with different preemergence herbicides for the initial and sequential application was studied at four locations in Indiana. Pendimethalin at 1.1 kg ai ha-1 was used as the initial application in all treatments. Sequential treatments applied 6 wk after the initial treatment consisted of: 2.2 kg ha-1 benefin; 1.4/0.7 kg ha-1 benefin/trifluralin; 8.4 kg ha-1 bensulide; 11.8 kg ha-1 DCPA; 0.6 kg ha-1 dithiopyr; 2.2 kg ha-1 oxadiazon; 1.1 kg ha-1 pendimethalin; or 0.6 kg ha-1 prodiamine. Dithiopyr at 0.6 kg ha-1 with no initial application was also included. Highest large crabgrass control ratings were obtained through September with pendimethalin + pendimethalin, pendimethalin + dithiopyr, and dithiopyr alone postemergence. All other sequential applications tested improved control over a single application of 1.1 kg ha-1 pendimethalin, but rarely gave adequate season long control.

Keywords

Benefin, N-butyl-N-ethyl-2,6-dinitro-4-(trifluoromethyl)benzenaminebensulide, O,O-bis (1-methylethyl) S-[2-[(phenylsulfonyl)amino]ethyl]phosphorodithioateDCPA, dimethyl 2,3,5,6-tetrachloro-1,4-benzenedicarboxylatedithiopyr, S,S-dimethyl, 2-(difluoromethyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-3,5-pyridinedicarbothioateoxadiazon, 3-[2,4-dichloro-5-(1-methylethoxy)phenyl]-5-(1,1-dimethylethyl)-1,3,4-oxadiazol-2-(3H)-onependimethalin, N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamineprodiamine, N3,N3-di-n-propyl-2,4-dinitro-6-(trifluoromethyl)-m-phenylenediaminetrifluralin 2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl)benzenaminelarge crabgrass, Digitaria sanguinalis ♯ DIGSAgoosegrass, Eleusine indica ♯ ELEINBenefinbensulideDCPAdithiopyroxadiazonpendimethalinprodiaminetrifluralinDigitaria sanguinalisEleusine indicaDIGSAELEIN
Type
Research
Information
Weed Technology , Volume 5 , Issue 2 , June 1991 , pp. 387 - 391
Copyright
Copyright © 1991 Weed Science Society of America 

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References

Literature Cited

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