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Related to demeton: Demeton-S-methyl


Either of two isomeric pale-yellow toxic organophosphorous liquids, C8H19O3PS2 or C8H19O3PS2, used as systemic insecticides.

[d(i)- + e(thyl) + me(rcaptan) + t(hi)on(ate), salt or ester of a thionic acid (thion- + -ate).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


a toxic organic chemical compound with formula C6H15O3PS2, primarily used as an insecticide
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Thiodemeton, Ditionsystox, Paraxon, BSI, Demeton (E 600), Mevin Phos, ISD: EPN, Schradan, Metacide, Methyl Parathion, Monocrotophos, Dicrotophos.
(2009) using the compounds (g or mL p.c./L) imidacloprid (0.56), methyl demeton (l.0), diafenthiuron (3.2), and monocrotophos (2.0) reported a mean mortality of 36.7%, 63.3%, 53.3%, and 60%, respectively, approximately 48 hours after application.
OPs not detected included: dimethoate, disulfoton, ethoprop, fensulfothion, EPN, fenthion, malathion, merphos, methyl parathion, azinphos-methyl, phorate, demeton. diazinon, trichloronate, coumaphos, tetraethylpyrophosphate, mevinphos, monocrotophos, naled, parathion, ronnel, sulfotepp, sulprofos, tetrachlorvinphos, and protothiofos.
Demeton (Systox) Systemic insecticide-acaricide, introduced in 1954 and discontinued in 1989.
The trials were managed with optimum nutrient application (150 N:20 P:0 K) after plowing down a green manure crop contributing additional N (150 kg [ha.sup.-1]), irrigation (five to six at 2- to 3-wk intervals) and aphid control (one to two applications of insecticide methyl demeton).
In USA, acaricide resistance of citrus red mite has been reported in California and Florida, and the acaricides include carbophenothion, chlorfenson, demeton, dicofol, dioxathion, ethion, parathion, and tetradifon.