Pesticidal dithiazolium salts
AssigneeE. I. Du Pont de Nemours and Company
InventorRussell F. Bellina
Life of this patent
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Abstract
Dithiazolium salts of one of the following formulas: ##SPC1## Where R, r.sub.1, r.sub.2, and R.sub.3 are certain organic radicals, the ring ##EQU1## contains 5-8 atoms, and A, E, and G are alkylene, And their use as pesticides. An exemplary compound: Hydrochloric acid salt of 3-dimethylamino-5-(4-methylpiperazin-l-yl)-1,2,4-dithiazolium chloride.
Claims13
A method for protecting plants from mites, aphids, Colorado potato beetle, Mexican bean beetle, and boll weevil which comprises applying to the plant foliage a miticidally effective amount, an insecticidally effective amount or a plant protective amount, but less than a defoliating amount of at least one compound of the formula ##SPC4##
- where
- R is alkyl of 1 through 6 carbon atoms;
- X.sup.- is an anion of the corresponding acid HX having an ionization constant of at least 1 .times. 10.sup..sup.-7 ;
- and f is 0 or 1.
A method for controlling mosquitoes which comprises applying to the locus of mosquito larvae an insecticidally effective amount of at least one compound of the formula ##SPC5##
- where
- R is alkyl of 1 through 6 carbonatoms;
- X.sup.- is an anion of the corresponding acid HX having an ionization constant of at least 1 .times. 10.sup..sup.-7 ;
- and f is 0 or 1.
Dependencies are inferred from the claim text.