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Preemergence Weed Control in Potatoes (Solanum tuberosum) with Rimsulfuron Mixtures

Published online by Cambridge University Press:  12 June 2017

Mary J. Guttieri  and
Charlotte V. Eberlein
Mary J. Guttieri
Affiliation:
Department of Plant, Soil, and Entomological Sciences, University of Idaho, Aberdeen, ID 83210
Charlotte V. Eberlein
Affiliation:
Department of Plant, Soil, and Entomological Sciences, University of Idaho, Aberdeen, ID 83210
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Abstract

Field studies were conducted to evaluate preemergence weed control in irrigated potatoes with rimsulfuron plus metribuzin or three-way mixtures of rimsulfuron plus metribuzin plus EPTC, metolachlor, or pendimethalin. Redroot pigweed control was ≥ 96% with rimsulfuron plus metribuzin at 18 g ai/ha + 140 g/ha, and common lambsquarters control was ≥ 97% with rimsulfuron plus metribuzin at 26 g/ha + 210 g/ha. Hairy nightshade control with rimsulfuron plus metribuzin ranged from 58 to 99%, and green foxtail control ranged from 50 to 98%. EPTC, metolachlor, or pendimethalin rates required for acceptable green foxtail and hairy nightshade control in combination with a given rate of rimsulfuron plus metribuzin varied with environmental conditions. Potato tuber yield generally improved with rimsulfuron plus metribuzin application.

Keywords

EPTC, S-ethyl dipropyl carbamothioatemetolachlor, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamidemetribuzin, 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-onependimethalin, N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenaminerimsulfuron, N-[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]-3-(ethylsulfonyl)-2-pyridine-sulfonamidecommon lambsquarters, Chenopodium album L. # CHEALgreen foxtail, Setaria viridis (L.) Beauv. # SETVI, hairy nightshade, Solanum sarrachoides Sendtner # SOLSAredroot pigweed, Amaranthus retroflexus L. # AMAREpotato, Solanum tuberosum L. ‘Russet Burbank.'Weed controlEPTCmetolachlormetribuzinpendimethalinAmaranthus retroflexusChenopodium albumSetaria viridisSolanum sarrachoidesAMARECHEALSETVISOLSAALS, acetolactate synthasepreemergence, PREpostemergence, POSTWAT, weeks after treatment
Type
Research
Information
Weed Technology , Volume 11 , Issue 4 , December 1997 , pp. 755 - 761
Copyright
Copyright © 1997 by the Weed Science Society of America 

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References

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