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Your Position :Home->Past Journals Catalog->2008年45 No.1

Larval instars and duration of Pristophora conjugata
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Key Words:Pristophora conjugata, larval instars, duration, variables for division instar
Abstract:

The number of larval instars and duration of each instar of Pristiphora conjugata Dahlb were determined under normal temperature and daylight in room in summer. The results showed that male larva had five instars and female larva had six instars, and the head width values of 1~6 instar larvae were 0.585~0.849, 0.849~1..371, 1.371~1.960; 1.960~2.350, 2.350~2.868, and >2.868 (mm), respectively. Discrimination of instar according to head width values of larva may provide scientific basis for the accurate grasping preventing and controlling time.



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