Results 171 to 180 of about 5,658 (218)

Soil dissipation and biological activity of metolachlor and S‐metolachlor in five soils

Pest Management Science, 2006
AbstractThe resolved isomer of metolachlor, S‐metolachlor, was registered in 1997. New formulations based primarily on the S‐metolachlor isomer are more active on a gram for gram metolachlor basis than formulations based on a racemic mixture of metolachlor containing a 50:50 ratio of the R and S isomers.
Dale L, Shaner, Galen, Brunk, David, Belles, Phil, Westra, Scott, Nissen   +4 more
openaire   +2 more sources

Microbial transformation of metolachlor

Environmental Toxicology and Water Quality, 1995
AbstractMetolachlor is an important selective herbicide used for the control of several annual grassy weeds and certain broad‐leafed weeds in corn, soybean, peanut, and other crops. It is the most heavily used agricultural pesticide in Ontario. There is, however, very little information in the open literature on the aquatic fate and persistence of ...
D. Liu, R. J. Maguire, G. J. Pacepavicius, I. Aoyama, H. Okamura   +4 more
openaire   +1 more source

Environmental Fate of Alachlor and Metolachlor

1989
Decision-makers, scientists, and the interested public should be informed what future research and education is needed if a strong pesticide regulatory program is imposed. Recommendations are intended to highlight research gaps. Some may be of general concern and apply to many pesticides.
G, Chesters, G V, Simsiman, J, Levy, B J, Alhajjar, R N, Fathulla, J M, Harkin   +5 more
openaire   +2 more sources

Adsorption and Desorption of Metolachlor and Metolachlor Metabolites in Vegetated Filter Strip and Cultivated Soil

Journal of Environmental Quality, 2004
ABSTRACTPrevious studies have indicated that dissolved‐phase metolachlor [2‐chloro‐N‐(2‐ethyl‐6‐methylphenyl)‐N‐(methoxy‐1‐methylethyl)acetamide] transported in surface runoff is retained by vegetative filter strips to a greater degree than either metolachlor oxanilic acid [2‐[(2‐ethyl‐6‐methylphenyl)(2‐methoxy‐1‐methylethyl)amino]‐2‐oxoacetic acid ...
L J, Krutz, S A, Senseman, K J, McInnes, D W, Hoffman, D P, Tierney   +4 more
openaire   +2 more sources

Metabolism of Metolachlor by the Fungus Cunninghamella elegans

Archives of Environmental Contamination and Toxicology, 1997
The metabolism of metolachlor[2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-met hyl ethyl)acetamide]by the fungus Cunninghamella elegans ATCC 36112 was determined. Thesix metabolites identified comprised 81% of the total[14C]-metolachlor metabolized by C. elegans.
J V, Pothuluri, F E, Evans, D R, Doerge, M I, Churchwell, C E, Cerniglia   +4 more
openaire   +2 more sources

Influence of the Chemical Environment on Metolachlor Conformations

Journal of Agricultural and Food Chemistry, 1999
Metolachlor exists in multiple, different stable conformations in solution. Assignment of the NMR frequencies to chemical structure is a prerequisite to understanding the behavior of individual conformations. (1)H NMR experiments of metolachlor in different chemical environments identified the labile sites of metolachlor and environments that influence
S, Jayasundera, W F, Schmidt, C J, Hapeman, A, Torrents   +3 more
openaire   +2 more sources

Infiltration and adsorption of dissolved metolachlor, metolachlor oxanilic acid, and metolachlor ethanesulfonic acid by buffalograss (Buchloe dactyloides) filter strips

Weed Science, 2004
Vegetative filter strips (VFS) potentially reduce herbicide transport from agricultural fields by increasing herbicide mass infiltrated (Minf) and herbicide mass adsorbed (Mas) compared with bare field soil. However, there are conflicting reports in the literature concerning the contribution of Masto herbicide trapping efficiency (TE).
Larry J. Krutz, Scott A. Senseman, Monty C. Dozier, Dennis W. Hoffman, Dennis P. Tierney   +4 more
openaire   +1 more source

Effects of S-metolachlor and its degradation product metolachlor OA on marbled crayfish (Procambarus virginalis)

Chemosphere, 2019
Increasing production of energy crops in Europe, mainly maize and rapeseed, has altered patterns of pesticide use in recent decades. The long-term effects of S-metolachlor (S-M) and of its metabolite metolachlor OA (M-OA) at the environmentally relevant concentration of 4.2 μg L-1 and at 42 μg L-1 (ten-fold concentration) on marbled crayfish ...
Alzbeta Stara, Jan Kubec, Eliska Zuskova, Milos Buric, Caterina Faggio, Antonin Kouba, Josef Velisek   +6 more
openaire   +3 more sources

Sunlight Photodegradation of Metolachlor in Water

Journal of Agricultural and Food Chemistry, 1994
The chemical and photochemical stability of the herbicide metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide] was determined in organic-free water and lake water containing various solutes. Metolachlor was fairly stable in lake water in the dark, with
Jan Kochany, R. James Maguire
openaire   +1 more source

Biodegradation of the Acetanilide Herbicides Alachlor, Metolachlor, and Propachlor

Critical Reviews in Microbiology, 1998
Alachlor, metolachlor, and propachlor are detoxified in biological systems by the formation of glutathione-acetanilide conjugates. This conjugation is mediated by glutathione-S-transferase, which is present in microorganisms, plants, and mammals. Other organic sulfides and inorganic sulfide also react through a nucleophilic attack on the 2-chloro group
Olli H Tuovinen
exaly   +3 more sources