PREPARATION FOR INCREASING POTATO YIELD BY TREATMENT OF SEED TUBERS BEFORE PLACEMENT IN STORAGE Russian patent published in 2015 - IPC A01N65/00 A01N33/02 A01C1/08 A01F25/00 

FIELD: chemistry.

SUBSTANCE: invention relates to means for fighting potato diseases. Preparation is used for treatment of potato when it is placed in storage. Preparation contains extract of fir boughs and extracts of mixture of lichens of genus Usnea or genus Cladonia with the following component ratio, %: extract of fir boughs, processed with N,N'-tetramethyldiaminomethane 98.75; extract of mixture of lichens of genus Usnea 1.25; extract of fir boughs, processed with N,N'-tetramethyldiaminomethane 98.75; extract of mixture of lichens of genus Cladonia 1.25. Extract of fir boughs is obtained in boiling with methyltertbutyl ether and processes with N,N'-tetramethyldiaminomethane. Extracts of mixture of lichens of genus Usnea or genus Cladonia are obtained by boiling of air-dry raw material in isopropyl alcohol.

EFFECT: suppression of development of diseases and increase of potato yield are provided.

3 tbl