台湾75毛豆病毒病防治技术研究

STUDIES ON THE CONTROL OF VIRUS DISEASES ON SOYBEAN VARIETY-TAIWAN 75

研究表明,台湾75毛豆病毒病主要由蚜虫传毒而致,其发生与蚜虫的成虫迁飞时间与发生量关系极为密切。若成虫高峰正遇毛豆1、2叶展平期,毛豆上落蚜量大,发生就重。所以早播的重于迟播的,露地栽培重于套播的。防治上应以栽培避蚜为主,药剂防治为辅,才可取得理想效果。

The viruses infecting soybean variety Taiwan 75 were mainly transmitted by aphids. The occurrence of those virus diseases is closely related with the emigrating time and the population of the adult aphids. If the peak of aphid adults occurred coincidentally with the first and second plant full leaves stages, the population of aphids descended in soybean was very large, and the virus diseases occurred seriously. The virus diseases of soybean occurred in early sowing fields were severer than those of in late sowing fields, and the disease in open fields were more serious than those in inter cropping fields. The main control technique is to adjusting sowing date to avoid the occurrence of aphids.