Method of controlling animal and fungal pests with oligomeric thiocarbonates
AssigneeUnion Oil Company of California
InventorsJames A. Green, II, Donald C. Young
Life of this patent
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Abstract
Oligomeric thiocarbonates such as hexathiodicarbonate salts and thioesters are used as pesticides and preservatives. Certain oligomeric thiocarbonate salts, notably quaternary ammonium hexathiodicarbonates, are prepared. The compounds are stabilized with added base and/or sulfide.
Claims34
A method for controlling animal and fungal pests which comprises applying to an area in which said pests are to be controlled less than a herbicidal amount of an oligomeric thiocarbonate represented by the formula ##STR6## wherein n is at least 1 and X and Y independently are inorganic cations selected from the group consisting of alkali metal cations, alkaline earth metal cations, and transition metal cations or organic cations consisting of
- R.sub.5 R.sub.6 R.sub.7 R.sub.8 N.sup.+
- wherein each of R.sub.5, R.sub.6, R.sub.7, and R.sub.8 is independently an organic radical selected from the group consisting of alkyl radicals, aralkyl radicals, and aryl radicals, said alkyl radicals, aralkyl radicals, and aryl radicals having from 1 to about 10 carbon atoms, for a total of between 5 and 20 carbon atoms.
A method for providing an oligomeric thiocarbonate fumigant to a space control animal and fungal pests comprising:
- applying to said space less than a herbicial amount of an oligomeric thiocarbonate, said thiocarbonate represented by the formula ##STR7## wherein n is at least 1 and X and Y independently are inorganic cations, consisting of
- R.sub.5 R.sub.6 R.sub.7 R.sub.8 N.sup.+
- wherein each of R.sub.5, R.sub.6, R.sub.7, and R.sub.8 is independently an organic radical selected from the group consisting of alkyl radicals, aralkyl radicals, and aryl radicals, said alkyl radicals, aralkyl radicals, and aryl radicals having from 1 to about 10 carbon atoms, for a total of between 5 and 20 carbon atoms, or an inorganic cation selected from the group consisting of alkali metal cations, alkaline earth metal cations, and transition metal cations, to produce at least some carbon disulfide within said space.
A method for controlling animal and fungal pests in soil which comprises applying to the soil a less than a herbicial amount of a thiocarbonate composition represented by the formula ##STR8## wherein n is at least 1 and X and Y independently are organic cations, consisting of
- R.sub.5 R.sub.6 R.sub.7 R.sub.8 N.sup.+
- wherein each of R.sub.5, R.sub.6, R.sub.7, and R.sub.8 is independently an organic radical selected from the group consisting of alkyl radicals, aralkyl radicals, and aryl radicals, said alkyl radicals, aralkyl radicals, and aryl radicals having from 1 to about 10 carbon atoms, for a total of between 5 and 20 carbon atoms, or an inorganic cation selected from the group consisting of alkali metal cations, alkaline earth metal cations, and transition metal cations, which tihocarbonate composition comprises more than one mole of bound carbon disulfide.
A method for controlling nematodes which comprises applying a nematodicidally effective, but less than herbicidal amount of an oligomeric thiocarbonate represented by the formula ##STR9## wherein n is at least 1 and X and Y independently are inorganic cations selected from the group consisting of alkali metal cations, alkaline earth metal cations, and transition metal cations or organic cations consisting of
- R.sub.5 R.sub.6 R.sub.7 R.sub.8 N.sup.+
- wherein each of R.sub.5, R.sub.6, R.sub.7, and R.sub.8 is independently an organic radical selected from the group consisting of, alkyl radicals, aralkyl radicals, and aryl radicals, each of said alkyl radicals, aralkyl radicals, and aryl radicals having from about 1 to about 10 carbon atoms, for a total of between 5 and 20 carbon atoms to an area in which nematodes are to be controlled.
A method for preserving cellulosic material against attack from animal and fungal pests which comprises applying to the material less than a herbicidal amount of an oligomeric thiocarbonate represented by the formula ##STR10## wherein n is at least 1 and X and Y independently are inorganic cations selected from the group consisting of alkali metal, alkaline earth metal, and transition metal cations, or organic cations consisting of:
- R.sub.5 R.sub.6 R.sub.7 R.sub.8 N.sup.+
- wherein each of R.sub.5, R.sub.6, R.sub.7, and R.sub.8 is independently an organic radical selected from the group consisting of alkyl radicals, aralkyl radicals, and aryl radicals, each of said alkyl radicals, aralkyl radicals, and aryl radicals having from about 1 to about 10 carbon atoms, for a total of between 5 and 20 carbon atoms.
A method for controlling pests selected from the group consisting of fungi, insects, rodents, gastrophods, arachnids, worms, nematodes and combinations thereof, which comprises applying to an area in which said pests are to be controlled less than a herbicidally effective amount, yet pesticidally effective amount of a hexathiodicarbonate represented by the formula ##STR11## wherein X and Y independently are selected from the group consisting of alkali metal, alkaline earth metal, transition metal, ammonium, and cations selected from the group consisting of cations independently comprising
- R.sub.5 R.sub.6 R.sub.7 R.sub.8 Q.sup.+
- wherein each of R.sub.5, R.sub.6, R.sub.7, and R.sub.8 is independently an organic radical selected from the group consisting of alkyl radicals, aralkyl radicals, aryl radicals, and hydrogen, each of said alkyl radicals, aralkyl radicals, and aryl radicals having from about 1 to about 10 carbon atoms, for a total of no more than between 5 and, and Q selected from the group consisting of nitrogen, phosphorous, arsenic, and antimony.
A method for controlling pests selected from the group consisting of fungi, insects, rodents, gastrophods, arachnids, worms, nematodes and combinations thereof, which comprises applying to an area in which said pests are to be controlled a pesticidally effective amount of a hexathiodicarbonate represented by the formula ##STR12## wherein X and Y independently are selected from the group consisting of cations containing organic radicals having from 1 to about 20 carbon atoms.
Dependencies are inferred from the claim text.