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›› 1993, Vol. 29 ›› Issue (5): 468-471.

• 研究简报 • 上一篇    下一篇

温变系数与马尾松毛虫发育关系的研究

张宏   

  1. 四川省森林病虫害防治试验站,永川632160
  • 收稿日期:1992-05-25 修回日期:1900-01-01 出版日期:1993-09-25 发布日期:1993-09-25

TEMPERATURE COEFFICIENT IN RELATION TO DEVELOPMENT OF MASSON PINE CATERPILLAR

Zhang Hong   

  1. Shichuan Provincial Forest Pest Experiment Station,Yongchuan 632160
  • Received:1992-05-25 Revised:1900-01-01 Online:1993-09-25 Published:1993-09-25

关键词: 马尾松毛虫, 温变系数, 发育

Abstract: Using the propertional value of temperature standard deviation δx to average temperature , the rearing date of Masson pine caterpillar, Dendrolimus punctatus Walker was analyzed. The results showed temperature coefficient isan important index influencing the development of caterpillar. Within favorable temperature range, at the same developmental stage, the average temperature among the Masson pine caterpillars were close to each other, but thetemperature coefficient differesgreatly from each other. While the temperaturechanges strongly, the larvae develop slowy; while the temperature changesweakly, the larvae develop quickly. There is no significant correlation betweenthe number of generation and the annual average temperature and the decadeaverage temperature higher than 10℃; but there is very sinificant negativecorrlation between the number of generation and the coefficient of decadeaverage temperature higher than 10℃.

Key words: Dendrolimus punctatus Walker, Temperature coefficient, Development