Crown Rot of Strawberry (Fragaria ananassa) Caused by Phytophthora cactorum

A severely wilting of strawberry caused by a Phytophthora sp. has occurred houses after planting in viny-houses field at Ssanglim and Anlim areas Kyungbuk in Korea from October in 1997. Phytophthora sp. isolated from diseased tissues of the corwn of strawberry Browning rot of inner corwn and root re...

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Bibliographic Details
Published inKorean J. Plant Pathol Vol. 14; no. 6
Main Authors Lim Yang-Sook, Jung Ki-Chae Kyung-buk Agricultural Technology Administration Department, Taegu (Korea Republic)
Format Journal Article
LanguageKorean
Published 1998
Subjects
ESPORAS FUNGICAS
FUNGAL SPORES
GROWTH RATE
INDICE DE CRECIMIENTO
PHYTOPHTHORA
PLANT TISSUES
SPORE FONGIQUE
STRAWBERRY
TAUX DE CROISSANCE
TEJIDOS VEGETALES
TEMPERATURA
TEMPERATURE
TISSU VEGETAL
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Summary:A severely wilting of strawberry caused by a Phytophthora sp. has occurred houses after planting in viny-houses field at Ssanglim and Anlim areas Kyungbuk in Korea from October in 1997. Phytophthora sp. isolated from diseased tissues of the corwn of strawberry Browning rot of inner corwn and root resulted in wilt and eventual death of the plant. The causal fungus was identifed as Phytophthora cactorum. Sporangia were ovoid, conspicuously papillate, caducous and measured 30.0~56.6*23.8~35.2 (av. 39.3~29.9) micro m. Sexuality of the fungus was homothallic. Oogonia were sperical and 23.3~32.3 (av. 29.0) micro m in size. Most atheridia were paragynous and measured av. 10.2*12.2 micro m. Cardinal temperature for growth at minimum, optium, maximum were were recorded at 7, 20~25, and 32 degrees, respectively. The fungus show strong pathogenicity to strawberry This is the first report of strawberry caused by Phytophthora cactorum in Korea.
Bibliography:2001000150
H20
ISSN:0256-8608