摘要
在养虫室内研究温度对从台湾省引进的椰心叶甲啮小蜂(TetrastichusbrontispaeFer.)发育历期和寄生能力的影响。结果表明:在温度(25+1)℃,相对湿度为(:75+5)%条件下,个体发育完成1代需要17￣21d;卵期1.5￣2d,幼虫期5￣6d;蛹期(含预蛹期)10￣12d;成蜂寿命在没有营养补充条件下,雌蜂活2d,雄蜂活1.5d。有10%(v:v)蜜糖水营养补充时雌蜂最长可活21d,最短7d,平均16d,雄蜂能活最长17d,最短5d,平均14d。完成1代的有效积温(285.36+19.32)℃,发育起点温度为(10.32+0.8)℃。在一定温度范围内,其发育历期随着温度的升高而缩短,寄生能力则随着温度的升高而增强。
A research was undertaken in insectarium for observation of developmental time and parasitizing capacity of Tetrastichus brontispae Fer. introduced from Taiwan, China. The results show that it takes 17 - 21 days to develop a generation of T. brontispae under the temperature of （25±1）℃ and RH （75±5）%, including 1.5 - 2 days of egg stage, 5 - 6 days of larva stage, 10 - 12 days of pupa and instars stage. Without feed, adult male and female survived 1.5 and 2 days respectively, whereas, with 10 % （v/v） of honey, the adult lifespan was 7 -21days （16 days on an average） for females and 5 - 17days （14 days） for males. The active accumulative temperature for one generation was （285.36±19.32）℃. The minimum developmental temperature was （10.32 ±0.8）℃. Its developmental time was shortened with temperature and the parasitizing capacity improved with temperature.
出处
《热带作物学报》
CSCD
2006年第3期61-65,共5页
Chinese Journal of Tropical Crops
基金
农业部948项目(2005Z-948)
中国热带农业科学院基金(Rky0535)资助
