摘要
在迪庆州香格里拉尼西乡对蔷薇大痣小蜂（Megastigmus sp.）的主要生物学特性进行观察。结果表明：蔷薇大痣小蜂在迪庆地区1年发生1代,主要以幼虫在种仁内越冬。幼虫在种子内生活历期达315 d,无转主危害习性;翌年3月种仁被食殆尽后,于4月下旬开始化蛹,蛹期长达130 d。蔷薇大痣小蜂成虫羽化开始时期因雌雄而异,雌雄成虫于5月下旬开始羽化,5月20—26日为羽化盛期;雄成虫比雌成虫羽化早。雌成虫羽化当天即可交尾产卵,卵期7~8 d,幼虫6月上旬开始孵化。
The biology characteristics of Megastigmus sp. , which parasite host is Rosa multiflora Thunb, were surveyed in Lanixixiang, Shangrila Diqing. The results showed that： Megastigmus sp. has one generation per year in Diqing area of Yunnan province, and overwinters as the larvae stage in the seed;the lifetime of the larvae in the seed is 315 d, and the larvae has no host-selection behavior;The seed was completely eat on March in nest year, and pupation was found at late April;the pupal stage is 130 d;the emergence time of Megastigmus sp. is difference according to the adult genders, and the adults emerge in late May;the peak period of early adults is from 20th to 26th on May; the emergence time of the males is earlier than that of the females ; the adult females mates and oviposits at the day of emergence ; the egg stage is 7 - 8 days, and the larvae will hatch in early June.
出处
《福建林业科技》
2016年第2期181-184,共4页
Journal of Fujian Forestry Science and Technology
基金
云南省重点学科森林保护学(XKZ200905)资助
关键词
蔷薇大痣小蜂
蔷薇
生物学特性
Megastigmus sp
Rose spp
biology characteristics
