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Weed Control in Pinto Beans (Phaseolus vulgaris) with Imazethapyr Combinations

Published online by Cambridge University Press:  12 June 2017

Richard N. Arnold ,
Martina W. Murray ,
Eddie J. Gregory  and
Dan Smeal
Richard N. Arnold
Affiliation:
New Mex. State Univ. Agric. Sci. Cent. at Farmington, Farmington, NM 87499
Martina W. Murray
Affiliation:
New Mex. State Univ. Agric. Sci. Cent. at Farmington, Farmington, NM 87499
Eddie J. Gregory
Affiliation:
New Mex. State Univ. Agric. Sci. Cent. at Farmington, Farmington, NM 87499
Dan Smeal
Affiliation:
New Mex. State Univ. Agric. Sci. Cent. at Farmington, Farmington, NM 87499
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Abstract

Imazethapyr, alone and in combination with other herbicides, was applied PPI, PRE, and POST to pinto beans to determine weed control and selectivity to the crop. All of the herbicides improved pinto bean yield as compared with the unweeded control. Imazethapyr applied PPI and POST provided excellent control of black nightshade, kochia, Russian thistle, prostrate pigweed, and redroot pigweed. Barnyardgrass control with imazethapyr ranged from 58 to 96% and increased to 98% or greater when imazethapyr was combined with metolachlor, pendimethalin, trifluralin, or EPTC. Pinto bean yield was not reduced from any herbicide treatment compared to the handweeded control.

Keywords

EPTC, S-ethyl dipropyl carbamothioateimazethapyr, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyrindinecarboxylic acidmetolachlor, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl) acetamidependimethalin, N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenaminetrifluralin, 2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl) benzenaminepinto beans, Phaseolus vulgaris L. ‘Pinto UI 126’barnyardgrass, Echinochloa crus-galli (L.) Beauv. # ECHCGblack nightshade, Solarium nigrum L. # SOLNIkochia, Kochia scoparia (L.) Schrad. # KCHSCprostrate pigweed, Amaranthus blitoides S. Wats. # AMABLredroot pigweed, Amaranthus retroflexus L. # AMARERussian thistle, Salsola iberica Sennen & Pau # SASKRApplication timingweed controlseed yielddry edible beandinitroaniline herbicidesEPTCmetolachlorbarnyardgrassblack nightshadekochiaprostrate pigweedredroot pigweedRussian thistleAMABLAMAREECHCGKCHSCSASKRSOLNI
Type
Research
Information
Weed Technology , Volume 7 , Issue 2 , June 1993 , pp. 361 - 364
Copyright
Copyright © 1993 Weed Science Society of America 

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References

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