管氏硬皮肿腿蜂防治广西罗汉果愈斑瓜天牛研究

应用管氏硬皮肿腿蜂防治罗汉果愈斑瓜天牛研究结果表明:愈斑瓜天牛适合管氏硬皮肿腿蜂寄生;肿腿蜂喜欢在老熟的天牛幼虫上产卵、羽化成蜂;按照蜂虫比为2:1在田间放蜂防治天牛,10月份防效好于9月份,防治效果可达到65.3%;肿腿蜂在桂南、桂北田间均可寄生该天牛幼虫。

A preliminary study on application of Scleroderma guani Xiao et Wu to control of Apomecyna saltator nivospara Fairmaiare

Scleroderma guani Xiao et Wu was used to control Apomecyna saltator nivospara Fairmaiare on Siraitia grosvenorii(Swingle) C.Jeffrey ex Lu et Z.Y.Zhang in the field.The results showed that S.guani could parasitize the larvae of A.saltator nivospara,but S.guani more likely laid eggs in and emerged from the bodies of older larvae.S.guani was released by the ratio of 2:1(natural enemy and pest) in the field of S.grosvenorii in order to control A.saltator nivospara.The control efficacy could reach 65.3%,but the efficacy achieved in October was higher than that in September.S.guani could parasitize the larvae of A.saltator nivospara in both the south and the north of Guangxi.