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一、前言由于柳杉天牛Semanotus japonicus(Lacord.)的为害,使柳杉、日本扁柏的木材质量下降,已成为急待解决的问题。用药剂防治天牛的报告发表了很多,但有效的方法是在成虫出木之前在树干上喷洒杀虫药剂,可是因经费和劳力的原因,在一般林地内实施起来有困难。据柴田报道,天牛成虫羽化出木后喜欢潜入缠在树干上的带内,而林洋二把这种树干缠带的方法应用在野外药剂杀虫试验上,报道了用S-7560油剂浸渍过的药带捕杀成虫的效果。奥田报道用杀螟松乳剂喷洒树干,在树干上释放成虫的试验结果表明,在4周内有杀虫效果。笔者为了寻找简便的防治柳杉天牛的技
I. Preface Due to the damage of Cryptomeria fortunei Semanotus japonicus (Lacord.), The quality of Cryptomeria japonica and Japanese cypress is declining, which has become an urgent problem to be solved. There have been many published reports on the use of pesticides to control termites, but it is effective to spray insecticide on tree trunks prior to the emergence of adults, but it is difficult to implement in common woodlands because of financial and labor costs. According to Shibata, adult beetles like to sneak into the band after they emerge from wood and Lin Yang’s method of entanglement with this tree trunk is applied to field pesticide insecticide tests. It is reported that S-7560 oil impregnated The effect of the medicine band to kill adults. Okuda reported spraying the trunk with the fenitrothion emulsion and releasing the adults on the trunk showed that the insecticidal effect was found within four weeks. The author in order to find a simple control of cedar Tianxian technology