ENTOMOPATHOGENIC BIOPREPARATION FOR PROTECTING PLANTS FROM PESTS AND METHOD FOR PREPARATION THEREOF Russian patent published in 2013 - IPC A01N63/04 C12N1/14 

FIELD: chemistry.

SUBSTANCE: entomopathogenic biopreparation for protecting plants from pests contains a dry mixture of a concentrate of a culture fluid based on infection units of entomopathogenic fungi of the type Verticillium lecanii or Beauveria bassiana, or Metarhizium anisopliae, aerosil and an additive which protects the infection units from loss of viability and biological efficiency when drying, with the following ratio of components, wt %: culture fluid concentrate 69.0-77.5, additive - 10.8-13.8, aerosil - 11.6-17.2. The additive is a polyatomic alcohol, carbohydrate, vegetable oil, sodium gluconate and water, with the following ratio of components, wt %: polyatomic alcohol 6.2-13.4, carbohydrate 38.0-41.9, vegetable oil 38.7-41.0, sodium gluconate 0.4-0.5, water 9.3-10.5. The biopreparation is obtained by mixing the culture fluid concentrate with the additive in ratio of 5-7:1, and then adding aerosil in ratio of 4.5-7.6:1 and drying the mixture. Efficiency of the biopreparation on white flies is 95-100% in a working concentration of 1·10⁷ spores/ml; the titre of viable units is (0.35-5.5)·10¹⁰ CFU/g.

EFFECT: invention increases biological efficiency of the biopreparation, preserves and increases viability of infection units of fungi during drying and storage.

8 cl, 3 tbl, 15 ex