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Control of Venice Mallow (Hibiscus trionum) in Corn (Zea mays) and Onions (Allium cepa)

Published online by Cambridge University Press:  12 June 2017

Philip Westra ,
Calvin H. Pearson  and
Randall Ristau
Philip Westra
Affiliation:
Dep. Plant Pathol./Weed Sci., Colo. State Univ., Ft. Collins, CO 80523
Calvin H. Pearson
Affiliation:
Dep. Agro., Colo. State Univ., Ft. Collins, CO 80523
Randall Ristau
Affiliation:
Dep. Agro., Colo. State Univ., Ft. Collins, CO 80523
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Abstract

Postemergence herbicides alone and in combination were evaluated for Venice mallow control in corn and onion in Colorado during 1986 and 1987. Season-long control of 88 to 98% in corn was obtained with bromoxynil plus cyanazine or atrazine; 2,4-D amine plus dicamba or bromoxynil; or linuron, bromoxynil, or dicamba applied alone. Oxyfluorfen plus bromoxynil in a split application controlled Venice mallow 80 to 99% all season in onions. Uncontrolled Venice mallow caused higher yield reductions in onions than in corn.

Keywords

Atrazine, 6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diaminebromoxynil, 3,5-dihromo-4-hydroxybenzonitrilecyanazine, 2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropanenitriledicamba, 3,6-dichloro-2-methoxybenzoic acidDPX-M6316, methyl 3-[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl aminocarbonyl]aminosulfonyl]-2-thiophenecarboxylatelinuron, N′-(3,4-dichlorophenyl)-N-methoxy-N-methylureaoxyfluorfen, 2-chloro-1-(3-ethoxy-4-nitrophenoxy)-4-(trifluoromethyl)benzene2,4-D dimethylamine salt, (2,4-dichlorophenoxy)acetic acidVenice mallow, Hibiscus trionum L. ♯3 HIBTRcorn, Zea mays L. ♯ ZEAMXonion, Allium cepa L. ♯ ALLCEWeed competitionsoil seed bankHIBTRZEAMXALLCE
Type
Research
Information
Weed Technology , Volume 4 , Issue 3 , September 1990 , pp. 500 - 504
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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