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Wild-Proso Millet (Panicum miliaceum) Control in Sweet Corn (Zea mays)

Published online by Cambridge University Press:  12 June 2017

Myron D. Shenk ,
William S. Braunworth Jr. ,
Raquel J. Fernandez ,
Daniel W. Curtis ,
Daniel McGrath  and
Ray D. William
Myron D. Shenk
Affiliation:
Oreg. State Univ., IPPC, Corvallis, OR 97331
William S. Braunworth Jr.
Affiliation:
Oreg. State Univ. (now at Malawi Agric. Res. Proj., (CID-OSU), Lilongwe, State Dept., Washington, DC 20523-0001)
Raquel J. Fernandez
Affiliation:
Escuela Superior de Agricultura, Santiago de los Caballeros, Dominican Republic)
Daniel W. Curtis
Affiliation:
Oreg. State Univ., Corvallis, OR 97331
Daniel McGrath
Affiliation:
Marion County Ext. Agent, 3180 Center St. NE, Salem, OR 97301
Ray D. William
Affiliation:
Ext. Hortic., Oreg. State Univ., Corvallis, OR 97331
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Abstract

The effects of seed depth on growing point location of wild-proso millet, effects of alachlor placement, and chemical control of wild-proso millet were studied in field and greenhouse experiments. In 1986, 55 to 88% of the seedlings originating in the top 6 cm of soil had their growing point above the soil surface. The respective figures were 11 to 36% in 1987. Shoot exposure to alachlor resulted in significantly greater phytotoxicity than root exposure. Only EPTC or vernolate with a protectant, preplant incorporated, or pendimethalin preemergence, followed by atrazine plus tridiphane postemergence controlled wild-proso millet more than 85% all season.

Keywords

alachlor, 2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamideatrazine, 6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diamineEPTC, S-ethyl dipropyl carbamothioatependimethalin, N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenaminetridiphane, 2-(3,5-dichlorophenyl)-2-(2,2,2-trichloroethyl)oxiranevernolate, S-propyl dipropylcarbamothioatewild-proso millet, Panicum miliaceum L. ♯3 PANMIGrowing point locationalachlor placementroot and shoot exposureherbicide combinationsatrazineEPTCpendimethalintridiphanePhaseolus vulgaris
Type
Symposium
Information
Weed Technology , Volume 4 , Issue 2 , June 1990 , pp. 440 - 445
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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