草莓青枯病－台灣新紀錄的草莓病害

Baterial Wilt of Strawberry-A New Record Disease in Taiwan

許永華(Yeong-Hwa Hsu)

《桃園區農業改良場研究報告》 2期 (1984/10) Pp. 59-63

https://doi.org/10.29567/ZHWHGX.198410.0005

摘要

由細菌Pseudomonas solanacerum引起的草莓青枯病於1983年10月於大湖鄉首次被發現。病株由下位叶先呈萎凋，數日後枯死，解剖根冠可見維管束褐化。病原菌於TZC選擇性培養基上呈現典型青枯病菌之菌落，接種試驗顯示，春香、麗紅及愛利收三品種均呈感病性。罹病由於栽培末期所作的調查發現，呈現萎凋病徵比率0.53%~2.59%不等，平均達1.44%。但經解剖檢查發現維管束褐化的比例高達20%~44%，平均為32.25%，亦即在田間約有1/3的植株均已受青枯病菌侵入。

並列摘要

Bacterial wilt of Strawberry caused by Pseudomonas solanacerum was found for the first time in Taiwan in October 1983. The symptom on the cultivar Haruhoka (春香) in the field, was the wilting of older leaves, and gradually dying of plant. The isolates from diseased tissue showed the typical colony this disease. A disease survey in May 1984 showed that disease incidence ranged from 0.53%-2.59% or on average 1.44%. However based on the anatomical inspection, the rate of infected plants range from 20%-44% or on average 32.25%. This indicated that the one third of plants in fields were symptomless carriers.