HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Stoller, E. W. Articles by Wax, L. M. Search for Related Content PubMed Articles by Stoller, E. W. Articles by Wax, L. M. Agricola Articles by Stoller, E. W. Articles by Wax, L. M.

Persistence and Activity of Dinitroaniline Herbicides in Soil¹

ABSTRACT

Greenhouse and field studies were conducted to determine the relative activity and persistence in soils of dinitramine (N⁴,N⁴-diethyl-,,-trifluoro-3,5-dinitrotoluene-2,4-diamine), GS 38946 (N-ethyl-N-tetrahydrofurfuryl-4-trifluoromethyl-2,6-dinitroaniline), oryzalin (3,5-dinitro-N⁴,N⁴-dipropylsulfanilamide), trifluralin (,,-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine), profluralin [N-(cyclopropylmethyl)-,,-trifluoro-2,6-dinitro-N-propyl-p-toluidine], nitralin [4-(methylsulfonyl)-2,6-dinitro-N,N-dipropylaniline], fluchloralin [N-(2-chloroethyl)-2,6-dinitro-N-propyl-4-(trifluoromethyl) aniline], benefin (N-butyl-N-ethyl-,,-trifluoro-2,6-dinitro-p-toluidine), chlornidine [N,N-Bis(2-chloroethyl)-2,6-dinitro-p-toluidine], isopropalin (2,6-dinitro-N,N-dipropylcumidine), butralin [4-(1,1-dimethylethyl)-N-(1-methylpropyl)-2,6-dinitrobenzenamine], and AC 92390 (N-sec-butyl-2,6-dinitro-3,4-xylidine). For all plant species tested, dinitramine was most toxic and butralin was least toxic. These herbicides were considered moderately persistent, but dinitramine and butralin were less persistent than the others, a fact which may be of some practical significance. At normal use rates none of the herbicides showed residual activity to wheat (Triticum aestivum L.) planted 5 months after application, or to corn (Zea mays L.) planted 12 months after application.

Key Words: residue • half-life

¹ Cooperative investigations of the North Central Region, Agric. Res. Serv., USDA, and the Illinois Agric. Exp. Stn., Urbana, IL 61801. This is a report on the current status of research concerning the use of chemicals that require registration under the Federal Insecticide, Fungicide and Rodenticide Act, as amended by the Federal Environmental Pesticide Control Act. Not all of the chemicals mentioned here are presently so registered with the Environmental Protection Agency. No recommendations for use of these chemicals are implied in this report.

² Plant Physiologist and Agronomist, respectively, North Central Region, ARS, USDA, Urbana, Ill.

Received for publication May 25, 1976.