
Poland is one of the largest producers of soft fruit. This is facilitated by the climatic conditions and geographical location of our country. The health status of seedlings in the nursery has a decisive impact on the quality of fruits and cultivation process. It is important that plantations are established from healthy seedlings from qualified nurseries. Fungi and fungus-like organisms are a very serious problem in berry plant nurseries. The research aimed to determine the species of fungi occurring the leaf petioles, shoot base and roots of strawberry, raspberry and gooseberry seedlings intended for commercial plantations. Research has shown that strawberry seedlings are threatened by the fungus-like organism Phytophthora cactorum and the fungi Botrytis cinerea as well as Colletotrichum acutatum. The strawberry cultivar most frequently colonized by P. cactorum is ‘Dipred’. The main causes of the death of raspberry and gooseberry seedlings are B. cinerea and Phytophthora spp. The fungus-like organism Phytophthora spp. was isolated in large numbers of colonies from raspberry ‘Polka’, ‘Kwanza’ and ‘Imara’ cvs. as well as gooseberry seedlings of the ‘Pax’ cv.
Assessment of the species composition of fungi occurring strawberry, raspberry and gooseberry
seedlings will allow for appropriate protection to be taken to protect commercial plantations against
colonization by dangerous fungal pathogens.
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