Swinglea glutinosa LEAVES DERIVED MATERIAL, ALONE OR IN COMBINATION WITH COPPER SULFATE, FOR CONTROL OF SOUR ROT GRAPES AND BUNCH ROT GRAPES

Abstract

The invention of the present application provides a natural material derived from Swinglea glutinosa leaves that alone or in combination with copper sulfate is as good or better than pesticide combinations for controlling Botrytis cinerea bunch rot of grapes, and sour rot of grapes caused by Alternaria sp., Cladosporium sp., Aspergillus sp., Mucor sp., Rhizopus sp., and Penicilium sp. The material derived from Swinglea glutinosa leaves, by itself, has better results than any of the pesticide combinations for controlling both, sour rot and bunch rot. A preparation of the material derived from Swinglea glutinosa leaves in combination with copper sulfate is better than pesticide combinations for sour rot of grapes, and a very good alternative, instead of pesticide combinations, for Botrytis cinerea bunch rot of grapes.

1 . An extract isolated from  Swinglea glutinosa  leaves, wherein the extract is used to treat sour rot grapes. 
     
     
         2 . The extract of  claim 1 , wherein the extract is obtained by a method comprising.
 A. Exposing bright dark green  Swinglea glutinosa  leaves in a dry environment, wherein said leaves are protected from direct sunlight, wherein the leaves are exposed to air flow;   B. leaving the leaves in the environment described in A. until the leaves turn opaque green and the leaves are brittle;   C. breaking up the leaves into small fragments;   D. putting the  Swinglea glutinosa  leaf fragments in contact with a solvent at least once;   E. repeat step D. until the solvent is enriched with substances derived from the leaf fragments; and,   C. retiring the solvent to release an extract.   
     
     
         3 . An extract isolated from  Swinglea glutinosa  leaves, wherein the extract is used to treat  Botrytis cinerea  bunch rot grapes. 
     
     
         4 . The extract of  claim 3 , wherein the extract is obtained by a method comprising:
 A. Exposing bright dark green  Swinglea glutinosa  leaves in a dry environment, wherein said leaves are protected from direct sunlight, wherein the leaves are exposed to air flow;   B. leaving the leaves in the environment described in A. until the leaves turn opaque green and the leaves are brittle;   C. breaking up the leaves into small fragments;   D. putting the  Swinglea glutinosa  leaf fragments in contact with a solvent at least once;   E. repeat step D. until the solvent is enriched with substances derived from the leaf fragments; and,   F. retiring the solvent to release an extract.   
     
     
         5 . A preparation that comprises a material derived from  Swinglea glutinosa  leaves and copper sulfate. 
     
     
         6 . The preparation of  claim 5 , wherein the preparation is used to treat sour rot grapes. 
     
     
         7 . The preparation of  claim 5 , wherein the preparation is used to treat  Botrytis cinerea  bunch rot grapes. 
     
     
         8 . The preparation of  claim 5 , wherein the material is an extract obtained by a method comprising:
 A. exposing bright dark green  Swinglea glutinosa  leaves in a dry environment, wherein said leaves are protected from direct sunlight, wherein the leaves are exposed to air flow;   B. leaving the leaves in the environment described in A. until the leaves turn opaque green and the leaves are brittle;   C. breaking up the leaves into small fragments;   D. putting the  Swinglea glutinosa  leaf fragments in contact with a solvent at least once;   E. repeat step D. until the solvent is enriched with substances derived from the leaf fragments; and,   F. retiring the solvent to release an extract.