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Herbicides and Cultivation for Sicklepod, Cassia obtusifolia, Control in Soybeans, Glycine max

Published online by Cambridge University Press:  12 June 2017

David R. Shaw  and
G. Euel Coats
David R. Shaw
Affiliation:
Dep. Plant Pathol. Weed Sci., Miss. State Univ., Mississippi State, MS 39762
G. Euel Coats
Affiliation:
Dep. Plant Pathol. Weed Sci., Miss. State Univ., Mississippi State, MS 39762
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Abstract

Sicklepod control with one or two cultivations or postemergence (POE) directed-spray applications of linuron or metribuzin plus 2,4-DB was less than 50% in August evaluations when no soil-applied herbicide had been used. However, sicklepod control greater than 75% was noted through August when two cultivations or metribuzin plus 2,4-DB applied POE followed either metribuzin applied preplant incorporated (PPI) and preemergence (PRE) or metribuzin plus alachlor applied as a PRE treatment. One cultivation after these soil-applied herbicide treatments did not reduce sicklepod populations compared to the chemical treatments alone. Soybean yields more than doubled over yields in untreated plots when a combination of soil-applied herbicides and two cultivations or metribuzin plus 2,4-DB applied POE were used.

Keywords

Alachlor, 2-chloro-N-(2,6-diethyl-phenyl)-N-(methoxymethyl)acetamidelinuron, N′-(3,4-dichlorophenyl)-N-methoxy-N-methylureametribuzin, 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one2,4-DB, 4-(2,4-dichlorophenoxy)butanoic acidsicklepod, Cassia obtusifolia L. # CASOBsoybean, Glycine max (L.) Merr. ‘Centennial’Alachlorlinuronmetribuzin2,4-DBCASOB
Type
Research
Information
Weed Technology , Volume 2 , Issue 2 , April 1988 , pp. 187 - 190
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

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