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Title: 4,5-Dihalopyrrole-2-carbonitrile-containing terrestrial and aquatic hebicidal composition
Claims: I claim: 1. A terrestrial or aquatic herbicidal composition consisting essentially of a herbicidally effective amount of a 4,5-dihalopyrrole-2-carbonitrile having the formula ##SPC3## where X is chlorine, bromine or iodine as the active ingredient applied at a terrestrial herbicidal concentration of 1.0 to 8.0 pounds per acre and at an aquatic herbicidal concentration of from 1.0 to 40 parts per million and a conventional carrier especially adapting the composition as a whole to application to areas to be cleared of undesirable terrestrial or aquatic plant growth. 2. A terrestrial herbicidal composition according to claim 1 containing an effective herbicidal amount of 4,5-dichloropyrrole-2-carbonitrile as the active ingredient. 3. A terrestrial herbicidal composition according to claim 1 containing an effective herbicidal amount of 4,5-dibromopyrrole-2-carbonitrile as the active ingredient. 4. A terrestrial herbicidal composition according to claim 1 containing an effective herbicidal amount of 4,5-diiodopyrrole-2-carbonitrile as the active ingredient. 5. A method of combatting undesirable terrestrial plant growth which comprises treating an area to be cleared of such undesirable plant growth with a composition according to claim 1 containing a herbicidally effective amount of a 4,5-dihalopyrrole-2-carbonitrile as the active ingredient. 6. A method according to claim 5 of combatting undesirable terrestrial plant growth which comprises treating an area to be cleared of such undesirable plant growth with a composition containing a herbicidally effective amount of 4,5-dichloropyrrole-2-carbonitrile as the active ingredient. 7. A method according to claim 5 of combatting undesirable terrestrial plant growth which comprises treating an area to be cleared of such undesirable plant growth with a composition containing a herbicidally effective amount of 4,5-dibromopyrrole-2-carbonitrile as the active ingredient. 8. A method according to claim 5 of combatting undesirable terrestrial plant growth which comprises treating an area to be cleared of such undesirable plant growth with a composition containing a herbicidally effective amount of 4,5-diiodopyrrole-2-carbonitrile as the active ingredient. 9. A method according to claim 5 of combatting undesirable terrestrial plant growth which comprises treating an area to be cleared of such undesirable plant growth with a composition containing a 4,5-dihalopyrrole-2-carbonitrile as the active ingredient at an application rate of from 1.0 to 8.0 pounds per acre. 10. A method according to claim 9 of combatting undesirable terrestrial plant growth which comprises treating an area to be cleared of such undesirable plant growth with a composition containing 4,5-dichloropyrrole-2-carbonitrile as the active ingredient at an application rate of from 1.0 to 8.0 pounds per acre. 11. A method according to claim 9 of combatting undesirable terrestrial plant growth which comprises treating an area to be cleared of such undesirable plant growth with a composition containing 4,5-dibromopyrrole-2-carbonitrile as the active ingredient at an application rate of from 1.0 to 8.0 pounds per acre. 12. A method according to claim 9 of combatting undesirable terrestrial plant growth which comprises treating an area to be cleared of such undesirable plant growth with a composition containing 4,5-diiodopyrrole-2-carbonitrile as the active ingredient at an application rate of from 1.0 to 8.0 pounds per acre. 13. A method of combatting undesirable aquatic plant growth which comprises treating a body of water to be cleared of such undesirable plant growth with a composition according to claim 1 containing a herbicidally effective amount of a 4,5-dihalopyrrole-2-carbonitrile as the active ingredient. 14. A method according to claim 13 of combatting undesirable aquatic plant growth which comprises treating a body of water to be cleared of such undesirable plant growth with a composition containing a herbicidally effective amount of 4,5-dichloropyrrole-2-carbonitrile as the active ingredient. 15. A method according to claim 13 of combatting undesirable aquatic plant growth which comprises treating a body of water to be cleared of such undesirable plant growth with a composition containing a herbicidally effective amount of 4,5-dibromopyrrole-2-carbonitrile as the active ingredient. 16. A method according to claim 13 of combatting undesirable aquatic plant growth which comprises treating a body of water to be cleared of such undesirable plant growth with a composition containing a herbicidally effective amount of 4,5-diiodopyrrole-2-carbonitrile as the active ingredient. 17. A method according to claim 12 for combatting undesirable aquatic plant growth which comprises treating a body of water to be cleared of such undesirable plant growth with a composition containing a 4,5-dihalopyrrole-2-carbonitrile as the active ingredient at a concentration of from 1.0 to 40 parts per million. 18. A method according to claim 17 for combatting undesirable aquatic plant growth which comprises treating a body of water to be cleared of such undesirable plant growth with a composition containing 4,5-dichloropyrrole-2-carbonitrile as the active ingredient at a concentration of 1.0 to 40 parts per million. 19. A method according to claim 17 for combatting undesirable aquatic plant growth which comprises treating a body of water to be cleared of such undesirable plant growth with a composition containing 4,5-dibromopyrrole-2-carbonitrile as the active ingredient at a solution concentration of 1.0 to 40 parts per million. 20. A method according to claim 17 for combatting undesirable aquatic plant growth which comprises treating a body of water to be cleared of such undesirable plant growth with a composition containing 4,5-diiodopyrrole-2-carbonitrile as the active ingredient at a solution concentration of 1.0 to 40 parts per million. Other info: Inventors: Bailey, Denis M. (East Greenbush, NY, US) Application Number: 590450 Filing Date: 1975-06-26 Publication_date: 1976-10-12 Assignee: Sterling Drug Inc. (New York, NY) Primary Class(es): 504/156 Other Classes: US Patent Ref:
Other Refs: Other References: C.A., vol. 69, 1968, p. 59090g. | |