›› 1996, Vol. 39 ›› Issue (1): 58-62.

• 研究论文 • 上一篇    下一篇

纵坑切梢小蠹蛀梢期生物学研究

叶辉   

  • 出版日期:1996-02-20 发布日期:1996-02-20

STUDIES ON THE BIOLOGY OF TOMICUS PINIPERDA (COL.,SCOLYTIDAE) IN THE SHOOT-FEEDING PERIOD

Ye Hui   

  • Online:1996-02-20 Published:1996-02-20

摘要: 本文研究了纵坑切梢小蠹Tomiaus piniperda对云南松枝梢的危害,并对该虫在蛀梢期的有关生物学特性,如性比、交配、食物选择、卵巢发育、越冬等进行了探讨。在昆明地区,蛀梢期从当年5月持续到次年3月。在此期间,该虫平均可蛀害3-6个枝梢。受害梢以当年生枝梢为主,平均直径为7-8.5mm。同一枝梢可受到多次蛀害。侵入孔距枝梢末端约3~4cm。该虫在蛀梢期已开始交配活动。交配率随卵巢发育进度而增大。各虫态受冬季气温低的影响发育减缓,但均能顺利越冬。

关键词: 纵坑切梢小蠹, 生物学, 云南松

Abstract: This paper deals with the injuries caused by Tomicus piniperda to theshoots of Pinus yunnanensis in shoot-feeding period in Kunming region of China.Information on its biological characteristics including sex ratio, mating, feeding preference and habit, hibernating and ovary development is presented and discussed.The shootfeeding period in Kunming started during May and lasted to Marchthe next year, in which each beetle bored 3 to 6 shoots. Most damaged shootswere the current shoots with 7Drosophila (Drosophila)7~8.5mm diameter. The same shoot could bedamaged several times, but frequently two times. The entrance hole was about3~4 cm far from the shoot tip. Mating was observed during shootfeeding and the mating rate increased progressively with ovary development. The developmentduring the winter season slowed down due to low temperature. Successfulhibernation was observed for all stages.

Key words: Tomicus piniperda, biology, Pinus yunnanensis