diquatn.
/ˈdʌɪkwɒt/ Chemistry.
A quaternary compound with herbicidal properties (see quot. 19601).
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the world > life > death > killing > killer of nature > [noun] > herbicide
weedkiller1745
weedicide1897
herbicide1899
algicide1902
algaecide1903
pesticide1933
2,4,5-T1947
silvicide1950
dalapon1953
silvex1954
sterilant1955
simazine?1957
mecoprop1959
propazine1959
diquat1960
TCA1960
picloram1965
propachlor1966
1960 Agric. & Vet. Chem. 1 197/2 Diquat is one of a group of quaternary dipyridylium salts which possess quite unique properties.
1960 Agric. & Vet. Chem. 1 197/2 Diquat is thus a contact herbicide with a very rapid action, two main outlets being as a pre~harvest desiccant and as a contact weedkiller.
1962 New Scientist 22 Feb. 441/3 Diquat is quickly absorbed by weeds, killing rapidly on contact with their foliage.
1965 Economist 9 Jan. 130/2 A product like the paraquat/diquat ‘chemical ploughing’ agents (for squares: weedkiller).
This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2018).
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n.1960