| 摘要: |
梨铁象是我国南方梨树的一种毁灭性害虫。此虫完成一代历时达16-24个月,以成虫在梨树小枝上和以幼虫在梨树干和主枝的韧皮部越冬。成虫寿命长达14个月(446天)。
当交配产卵季节,成虫于黄昏后从梨树小枝上向下爬到树干或主枝上进行交配、产卵,次日拂晓前,它们又爬回梨树小枝上。这种习性对防治很重要。 |
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| DOI： |
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| 基金项目: |
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| A STUDY ON STYANAX APICATUS HELLER |
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Wang Zong kai, Qiu Feng po
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| (Guangxi Institute of Botany) |
| Abstract: |
Styanax apicatus heller is a kind of destructive insect pest to the pear trees in south China.This insects need about 16-24 months to complete a generation.They live through the winter by imago on twigs and larvas in pear tree's phloem of the trunks and main breaches.The imago's lifespan is as long as 14 months(466 days).
During the mating and oviposition seasons,the male and female imagos crawl downward from the twigs to the main branches and trunks to mate and. oviposite there after dusk and crawl upward to the twigs before the next day break.This habit is very important for controlling the pest. |
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