安徽农业科学2009，Vol.37Issue(33)：16423,16499,2.
茄二十八星瓢虫产卵观察
Observation on the Oviposition of Henosepilachna vigintioctopunctata (Fabricius)
摘要
Abstract
[Objective] The purpose of the study was observe the oviposition situations of adult Henosepilachna vigintioctopunctata (Fabricius) in the laboratory with natural condition. [Method] In the laboratory with natural condition, the H. vigintioctopunctata was fed with Solanum nigrum leaves till the female ones died. Their oviposition situation was observed and their fecundities were recorded everyday. Finally, the observation results were analyzed statistically. [Result] The actual average oviposition days of female H. vigintioctopunctata were 19.0 d, its average life span was 56.3 d and its actual average oviposition days accounted for one third in its life span. It average, longest and shortest preoviposition periods were 6.1, 13.0 and 3.0 d resp. It average, longest and shortest oviposition periods were 44.0, 59.0 and 16.0 d. The total fecundity per female H. vigintioctopunctata in its whole life was 618.0 particles averagely, 791.0 particles at most and 263.0 particles at least. Its average fecundity of oviposition period was 14.0 particles per day and its fecundity per day calculated out according to actual oviposition days was 32.5 particles per day. The oviposition of H. vigintioctopunctata showed intermittence to some degree, most intermittent time was 2-3 d and the longest intermittent time was 10 d. Its average fecundities of the 1st, 2nd, 3rd and 4th week were 73.0, 120.0, 156.6 and 76.0 particles resp. [Conclusion] The study provided some guiding basis for the field control of H. vigintioctopunctata.关键词
茄二十八星瓢虫/产卵量/产卵前期/产卵期Key words
Henosepilachna vigintioctopunctata (Fabricius)/ Fecundity/ Preoviposition period/ Oviposition period分类
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符真,胡兵,涂小云..茄二十八星瓢虫产卵观察[J].安徽农业科学,2009,37(33):16423,16499,2.
