译 名：
IDENTIFICATION OF PHYTOPHTHORA BLIGH OF VIGNA UNQUICULATA SSP. CYLINDRICA AND ITS CHEMICAL CONTROL
作 者：
Cheng Jiazhuang Wei Xiaoyan (Guangzhou Chemical Industry Research Institute, Guangzhou 510055)
关键词：
V. unguiculata ssp. cylindrica , Phytophthora vignae, chemical control
摘 要：
A disease causing wilt of Vigna unguichulata ssp. cylindrica has been observed in recent years in suburb of Guangzhou City. The pathogen, according to its morphology, cultural characteristics and the host range was identified as Phytophthora vignae. Its host range was found to be rather narrow, including only V. unguiculata ssp. sesguipedalis, V. angularis, V. umbekkate and V. rabiata in addition to V. unguiculata ssp. cylindrica. However, V. unguiculata ssp. cylindrica is newly discovered host plant. Pin-punching inoculation was applied in potato tuber, the fruit of cucumber, sweet pepper and apple but observed no infection. It was shown by the present study that the chemicals metalaxyl and sandofan M8 were rather effective in controlling the disease.
