BIOLARVICIDE AND METHOD OF ITS PREPARING Russian patent published in 1998 - IPC

Abstract RU 2113121 C1

FIELD: biotechnology, insecticides. SUBSTANCE: invention proposes a preparation containing 20-85% Bacillus sphaericus spores with toxins and cultural fluid residue, 5-40% polymer containing polar groups (cellulose derivatives, polyvinyl alcohol) and inorganic porous electrifiable material (perlite, slags). Larvicide is obtained by addition of polymer to cultural fluid concentrate, mixing with carrier and the following drying at the simultaneous carrier charging. Proposed method of preparing larvicide increases its working time from 1-4 weeks (by the known method) to 6-12 months and more. Larvicide can be used for control over mosquito larvae. EFFECT: improved method of preparing, prolonged working time. 7 cl, 4 tbl

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RU 2 113 121 C1

Authors

Shevtsov V.V.

Zhigletsova S.K.

Krajnova O.A.

Shevtsov V.V.

Dates

1998-06-20—Published

1993-07-21—Filed