초록

A clear aqueous emulsion of a complex comprising a moiety having a hydrophilic core to which is covalently bound the backbone of at least one monounsaturated C16-C20fatty acid and appropriate surfactants is effective in controlling agricultural pests, including nematodes.

대표청구항 ▼

1. A clear aqueous microemulsion consisting essentially of (a) a lipase complexed with a least one C16-C20monounsaturated fatty acid or an ester thereof to form a complex; (b) an anionic surfactant blend; (c) a nonionic and/or amphiphilic surfactant blend that promotes microemulsion formation;

1. A clear aqueous microemulsion consisting essentially of (a) a lipase complexed with a least one C16-C20monounsaturated fatty acid or an ester thereof to form a complex; (b) an anionic surfactant blend; (c) a nonionic and/or amphiphilic surfactant blend that promotes microemulsion formation; and (d) wherein said clear aqueous microemulsion has a turbidity less than 3 NTU. 2. The microemulsion of claim 1 wherein in said complex said ester is a monoglyceride, a triglyceride or a diglyceride. 3. The microemulsion of claim 1 wherein in said complex the monounsaturated C16-C20fatty acid is an oleic acid. 4. The microemulsion of claim 1 wherein in said complex said fatty acid or ester is derived from a vegetable oil. 5. The microemulsion of claim 1 wherein in said complex said lipase is a fungal lipase. 6. The microemulsion of claim 4 wherein the fungal lipase is derived from a Laetiporus, Ganoderma, Mucor, Rhizopus, Penicillium, Candida or Aspergillus. 7. The microemulsion of claim 6 wherein said fungal lipase is derived from Laetiporus. 8. The microemulsion of claim 1 wherein in said complex said lipase is derived from a bacterium. 9. The microemulsion of claim 7 wherein the lipase is derived from Pseudomonas, Rhizobium or Chromobacterium. 10. The microemulsion of claim 1 wherein in said complex said lipase is provided in purified form. 11. The microemulsion of claim 5 wherein the lipase is provided as a fungal culture filtrate. 12. The microemulsion of claim 1 wherein in said microemulsion at least one surfactant comprises polyalkoxy chains. 13. The microemulsion of claim 12 wherein said polyalkoxy chains are polyethoxy chains. 14. The microemulsion of claim 1 which has a turbidity less than 1 NTU. 15. The microemulsion of claim 1 wherein in said complex the ratio of component (a) to surfactant is about 1:6.5-1:8.5. 16. The microemulsion of claim 15 wherein the ratio of component (a) to surfactant is 1:7.75. 17. The microemulsion of claim 1 wherein said ethoxylated linear alcohols of C8-C11have an alkoxylene:alcohol ratio of 8:1 to 2:1. 18. The microemulsion of claim 17 wherein said ratio is 2.5:1.