FIELD: microbiological industry, biotechnology. SUBSTANCE: invention relates to methods used for storage of entomopathogenic nematodes used as biological preparations for control of insect-pests. Method involves preparing precipitate of nematodes, preparing the protective solution using sodium alginate and Tween-80, dispersing precipitate of nematodes into the protective solution. Then, the prepared suspension of nematodes is mixed with the foamed polymer or mixture of polymers. Invention allows elevation of preservation period of viability of entomopathogenic nematodes for the storage period, transporting and to improve the technology of application of anti-nematode preparations. EFFECT: improved preparing method. 6 tbl, 3 ex
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