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重齿小蠹对人工合成聚集信息素的昼夜反应节律发生在白天7:00～21:00,反应高峰在14:00~19:00,反应模式为“单峰式—白天型”;利用人工合成的聚集信息素对重齿小蠹成虫发生期监测表明,成虫扬飞的开始时间为5月20日左右,扬飞高峰期为6月下旬和7月上旬,扬飞末期为8月26日,成虫扬飞的持续期为98 d。2007~2009年大量诱杀防治的试验前、后重齿小蠹致死木平均分别为3.39株/hm2和0.76株/hm2,致死木减少了77.58%,而对照区试验前、后致死木平均分别为15.89株/hm2和18.11株/hm2,致死木增加了13.97%,3 a大量诱杀试验的防治效果显著。
The diurnal rhythms of diurnal reaction of artificial Dendrolimus punctatus to anthropomorphic aggregation of pheromone occurred at 7: 00-21: 00 during the daytime, the peak of reaction was at 14: 00-19: 00 and the reaction mode was “unimodal - daytime”. The monitoring of the occurrence of adult adults of Dendroctonus pygmaea using artificially synthesized aggregated pheromones showed that the starting time for the adults to fly was about May 20, the peak of Yangfeii was in late June and early July, and the end of Yangfei was August On the 26th, the duration of the felling of the adults was 98 days. 2007 to 2009, a large number of trapping kill prevention and control before and after the test, the average mortality rate of Demodex carmina were 3.39 and 0.76 plants / hm2, respectively, while the dead wood was reduced by 77.58%, while the control group before and after the dead wood were 15.89 plants / hm2 and 18.11 plants / hm2, and the mortality of dead wood increased by 13.97%.