摘要
细叶结缕草锈病（Puccinia zoysiae Diet）是细叶结缕草的主要病害。据 1994年观察,越冬前未经修剪的草坪或漏剪的草丛春天发病早而重,可见此病发生与病菌越冬有密切关系。室内人工接种18～28℃之间病害潜育期为7～9天,30～35℃时不发病。夏孢子萌发适温为25℃,30℃以上萌发率迅速下降,致死温度为44℃,可见夏季病情下降与高温有关。1994年病害发生高峰期在5～7月。
The rust of Zaysia tenuifolia (Puctinia zaysiae Diet. )is a main disease of korean velvetgrass. The urediospores over - winter on the leaves which have not pruned before winter. The incubation period of the disease is 7 to 9 days under the temperatures from 18℃ to 28℃ . The experimental results indicated that the optimum temperature of germination for urediospores is at 25℃ and the maximum is at 44℃ . The peak of the disease appeared between May and July in 1994.
关键词
细叶结缕草
锈病
温度
草坪
Zoysia tenuifolia
Puccinia zoysiae Rust
Temperature
