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Effect of microbial plant protection agents and bacterial fertilizers on the development of potato (Solanum tubero-sum L.) diseases during storage in western Forest-Steppe

Application of microbial plant protection products and bacterial fertilizers Planriz, Fitotsid, Diazofit and Fosfoenterin has reduced damage of pathogens in 1,6-2,9 times at processing tubers before planting, plants during budding and flowering, before laying on storage in Western Forest-steppe. Among the total number of diseases share a wet bacterial rot was 17,6-22,6%,  Phoma spp. rot - 13,5-16,1%, Fusarium dry rot - 61,3-67,6%. In tubers planted in mid-May, the development of Fusarium spp. at the end of storage increased by 1.3-1.8 times compared with planting in late April. Combined  application of Planriz and Ridomil Gold has reduced of diseases in 1.4-1.7 times compared with a single fungicide.

Key words: Solanum tuberosum L., planting dates, microbiological agents, diseases, Pectobacterium carotovorum, Phoma exigua Desm., Fusarium spp., storage.

 

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