Full TGIF Record # 11787
Item 1 of 1
Publication Type:
i
Refereed
Author(s):Bean, Brent W.; Roeth, Fred W.; Martin, Alex R.; Wilson, Robert G.
Author Affiliation:Dept. Agronomy, University of Nebraska, Lincoln, NE; South Central Research and Ext. Center, Clay Center; Dept. Agronomy, Lincoln, and Panhandle Res. and Ext. Ctr., Scottsbluff, respectively.
Title:Influence of Prior Pesticide Treatments on EPTC and Butylate Degradation
Source:Weed Science. Vol. 36, No. 1, January 1988, p. 70-77.
Publishing Information:Champaign, IL: Weed Science Society of America
Keywords:TIC Keywords: Pesticides; EPTC; Butylate; Degradation; Persistence; Cyanazine
Abstract/Contents:"Field and laboratory studies were conducted to examine the influence of previous pesticide use, number of prior EPTC (S-ethyl dypropyl carbamothioate) and butylate [S-ethyl bis(2-methylpropyl) carbamothioate] applications, and pretreatment of soil with EPTC and butylate metabolites on EPTC and butylate degradation. EPTC degradation was enhanced in Clay Center and Scottsbluff soils following three annual EPTC, butylate, or vernolate (S-propyl dipropylcarbamothioate) applications, but was not affected in soils following three annual atrazine [6-chloro-N-ethyl-N1- (1-methylethyl) -1,3,5-triazine-2,4-diamine], cyanazine {2-[[4-chloro-6-(ethylamino)-1, 3, 5-triazin-2-yl] amino] -2-methylpropanenitrile}, metolachlor [2-chloro-N- (2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl) acetamide], alachlor [2-chloro-N- (2,6-diethylphenyl) -N- (meth-oxymethyl) acetamide], or cycloate (S-ethyl cyclohexyl-ethylcarbamothioate) applications. EPTC degradation rate was not affected in a Scottsbluff soil following three annual carbofuran (2,3-dihydro-2, 2-dimethyl-7-benzofluranyl methyl-carbamate) applications, but was partially enhanced in a Clay Center soil. Self- and cross-enhanced degradation of EPTC and butylate did not change regardless of the number of prior annual applications of each herbicide. The degradation rates of EPTC and butylate were not affected bysoil pretreated with butylate sulfone, but the degradation rates were fully enhanced by pretreatment with the respective sulfoxides of each herbicide. In cross-enhancement testing, EPTC and butylate degradation was partially enhanced in Clay Center soil pretreated with the sulfoxides of each."
Language:English
References:19
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bean, B. W., F. W. Roeth, A. R. Martin, and R. G. Wilson. 1988. Influence of Prior Pesticide Treatments on EPTC and Butylate Degradation. Weed Sci. 36(1):p. 70-77.
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