稻瘿蚊寄生蜂寄生率调查简报

• 作 者: 赵璧尊 梁桂珍
• 机 构: 广西农校,广西农校,
• 出 处: 广西农业科学
• 发表日期: 1985年02期
• 关键词: 稻瘿蚊 标葱 寄生蜂 晚稻 寄生率 调查简报 防治处理 秧田期 Mason 寄生性天敌

稻瘿蚊(Pachydiplosis oryzae Wood-Mason)在本校农场稻田内历年来均有发生,有些年份晚稻秧田期发生量较大。据1965年、1967年、1982年和1983年的调查,晚稻秧苗的标葱率一般为12.9—24.1％高达36.3—49.2％,影响秧苗的适用苗率。但尽管不采用人为防治处理,移植后晚稻本田主苗和分孽苗的标葱率却很小。这和此害虫寄生天敌的自然控制作用有关。

Pachydiplosis oryzae Wood-Mason occurs all over the years in the paddy fields of our school farms. In some years, the occurrence of late-season rice seedlings is relatively large. According to the survey of 1965, 1967, 1982 and 1983, the yield of late rice seedlings was generally 12.9-24.1%, reaching 36.3-49.2%, which affected the seedling application rate. However, although not using artificial control treatment, the late rice Honda Miao main seedlings and seedlings scion scallop rate is very small. This is related to the natural control of this pest’s parasitoids.