天童山古树群白蚁防治试验

从2009年开始,在天童国家森林公园古树群以"心居康"灭蚁系统地下定点系统监测与地面树干调查相结合的方法进行为期330 d的虫情调查,采用2.5%联苯菊酯1∶80倍稀释液喷施和2.5%氟虫晴1∶40倍稀释液注药对白蚁进行防治试验。结果表明:浙江天童山危害古树的白蚁种类主要是黑翅土白蚁及黄翅大白蚁;采用联苯菊酯喷施并结合氟虫晴注药防治效果达74.4%～99%,地下监测虫口减退率为71.4%～100%,与地上调查防治效果相吻合,防治效果较好,且对环境污染小,适用于风景区白蚁防治。

The Experiment of Controlling Termites in Ancient Tree Groups on Tiantong Mountain

This experiment began in 2009,during 330 days experiment in the ancient tree groups in Tiantong National Forest Park."Sentricon" killing termites system was monitored underground combined with investigating of trunk up ground. Using 2.5% of deltamethrin bipheny 1,80 times of diluents spraying and 2.5% of fluorine medicine,and 40 times of dilute injection were used in termites control experiment.The results were as follows: the main termites were Odontotermes formosanus and Macrotemes barneyi Light,the control effect was 74.4-99% after deltamethrin biphenyl spraying and fluorine medicine injection.The decline rate of monitoring the insect population was 71.4%～100% underground,which fitted ground investigation well and indicated that the control effect was good,and environmental pollution was very little.This method could be applied to control the termite in the scenic spot.