Method and composition for controlling fungal phytopathogens

Abstract

The present invention relates to a method for controlling fungal phytopathogens using Galla chinensis preparations, and to a fungicidal composition comprising Galla chinensis in combination with at least one phytologically acceptable adhesive.

1 . A method for controlling a fungal phytopathogen or preventing infection of a plant by a fungal phytopathogen comprising the step of contacting the plant, plant parts, its seed, soil and/or habitat with an effective amount of a preparation containing  Galla chinensis.    
     
     
         2 . The method of  claim 1  wherein the preparation further contains  Galla chinensis  meal. 
     
     
         3 . The method of  claim 1  wherein the  G. chinensis  preparation is used in a composition further containing at least one phytologically acceptable adhesive. 
     
     
         4 . The method of  claim 1  further comprising the step of treating the plant, plant parts, its seed, soil and/or habitat with an effective amount of hot air, preferably having a temperature of from 55 to 80° C., more preferably from 60 to 75° C. 
     
     
         5 . The method of  claim 4  wherein the air has a relative humidity of not more than 5% or more than 85%. 
     
     
         6 . The method according to  claim 1  comprising the step of forming a dispersion of the  Galla chinensis  preparation in a liquid, preferably water, optionally containing at least one phytologically acceptable adhesive. 
     
     
         7 . The method of  claim 6  wherein the slurry is applied onto plant seed, seedlings or subterranean plant parts. 
     
     
         8 . The method of  claim 3  further comprising the steps of:
 treating the plant seed with at least one phytologically acceptable adhesive; and 
 contacting the seed with the preparation containing  Galla chinensis ; optionally treating the seed again with the at least one phytologically acceptable adhesive. 
 
     
     
         9 . The method of  claim 1  wherein the fungal phytopathogen is selected from the group consisting of  Ascomycetes, Basidiomycetes  and  Oomycetes.    
     
     
         10 . The method of  claim 9  wherein the  Ascomycete  is selected from the group consisting of the genera  Microdochium, Gibberella, Claviceps, Gaeumannomyces, Epichloe, Sclerotinia, Leptosphaeria, Pyrenophora, Venturia,  and  Mycosphaerella.    
     
     
         11 . The method of  claim 10  wherein the fungus is selected from the group consisting of  Microdochium majus, Microdochium nivale, M. oryzae, M. tabacinum  and  M. triticicola.    
     
     
         12 . The method of  claim 1  wherein the plant is selected from cereals, beets, fruits, leguminous plants, oil plants, cucurbits, fiber plants, citrus fruits, vegetables, lauraceous plants, grapes, tobacco, Stevia, natural rubber plants, grasses, ornamental and forestry plants. 
     
     
         13 . A fungicidal composition comprising a preparation containing  Galla chinensis  and at least one phytologically acceptable adhesive. 
     
     
         14 . The composition of  claim 13  comprising  Galla chinensis  meal. 
     
     
         15 . A plant seed, a plant seedling or a subterranean plant part being coated with the composition according to  claim 13 . 
     
     
         16 . The method of  claim 1  wherein the preparation consists essentially of  Galla chinensis  meal. 
     
     
         17 . A plant seed, a plant seedling, or a subterranean plant part being sequentially coated with at least one phytologically acceptable adhesive according to  claim 13  and a preparation containing  G. chinensis.