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Yellow Nutsedge Control with MBR-8251

Published online by Cambridge University Press:  12 June 2017

W. A. Gentner
W. A. Gentner*
Affiliation:
Plant Sci. Res. Div., Agr. Res. Serv., U.S. Dep. of Agr., Beltsville, MD. 20705
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Abstract

Equimolar concentrations of 4-phenylsulfonyltrifluoromethanesulfono-o-toluidide (hereafter referred to as MBR-8251), S-ethyl dipropylthiocarbamate (EPTC), and 2-chloro-2′,6′-diethyl-N-(methoxymethyl)acetanilide (alachlor) were compared using a quartz gravel nutrient culture method for detecting toxicity to yellow nutsedge (Cyperus esculentus L.), okra (Hibiscus esculentus L.), cabbage (Brassica oleracia var. captata L.), cucumber (Cucumis sativus L.), and flax (Linum ustitatissimum L.). MBR-8251 was more active on yellow nutsedge than EPTC or alachlor, and MBR-8251 treated nutlets were controlled for a longer period. In general, crops were more tolerant of MBR-8251. Field studies comparing the effectiveness of MBR-8251 to EPTC, S-propyl dipropylthiocarbamate (vernolate), 2-chloro-4-(ethylamino)-6-isopropylamino-s-triazine (atrazine), 3-isopropyl-2,1,3-benzothiazinone-(4)-2,2-dioxide-6,7,8 (BAS-3510), alachlor, and 2-chloro-N-(ethoxymethyl)-6′-ethyl-o-acetotoluidide (MON-097) indicated that after 10 weeks yellow nutsedge control was excellent with MBR-8251, MON-097, and alachlor.

Type
Research Article
Information
Weed Science , Volume 21 , Issue 2 , March 1973 , pp. 122 - 124
Copyright
Copyright © 1973 Weed Science Society of America 

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References

Literature Cited

1. Gentner, W. A. 1967. Useful techniques for the study and evaluation of herbicides in nutrient solution. Proc. Northeast Weed Contr. Conf. 21:563.Google Scholar
2. Jansen, L. L. 1971. Morphology and photoperiodic responses of yellow nutsedge. Weed Sci. 19:210–219.Google Scholar
3. Taylorson, R. B. 1967. Seasonal variation in sprouting and available carbohydrate in yellow nutsedge tubers. Weeds 15:22–24.Google Scholar