粤北桑芽瘿蚊的世代及生活史和习性调查  

Studies on the Generation, Life Cycle and Life Habit of Giadomyia sp. in North Guangdong

作　　者：马秀翠[1] 谭炳安[1] 黄志君[1] 余炳球 张永文 彭许增 

机构地区：[1]华南农业大学蚕桑系 [2]广东省丝绸公司

出　　处：《蚕业科学》2001年第4期306-309,共4页ACTA SERICOLOGICA SINICA

摘　　要：调查表明 :粤北桑芽瘿蚊 1年发生 10代 ,世代重叠现象明显 ,从 5月初一直为害至 11月 ,11月底以结成囊包休眠体的老熟幼虫在桑田土表层中进行越冬 ,但从 6月下旬开始各代均有部分老熟幼虫结成囊包休眠体在桑田土表层中进行越夏、越冬 ;全年以第 1～ 3代发生量最大。各虫态历期 :卵 1～ 2d ,幼虫 5～ 12d ,蛹 5～ 12d ,成虫 1～3d ,完成 1个世代需 15～ 2 6d ,大多要 2 0d左右。雌雄成虫比例 (性比 )约为 2 5 1∶1。Mulberry gall midge ( Giadomyia sp.) in north Guangdong had 10 generations in 1996 and the generations were overlapped. It damaged the mulberry buds from May to November every year. In late November, mature larvae in capsules hibernated in the upper soil of the plantation. However, some of mature larvae began over summering or hibernation from late June. The maximum quantity of occurrence was in the first, second and third generations. The developmental duration for eggs was 1～2 days, larvae 5～12 days, pupae 5～12 days and adults 1～3 days respectively, which means that it took 15～26 days to complete one generation and mostly about 20 days. The ratio of female to male was 2 51∶1.

关 键 词：桑芽瘿蚊 世代 生活史 生活习性 桑树害虫 

分 类 号：S888.726[农业科学—特种经济动物饲养]