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我所自1974年大量引利栽培油橄榄后,于1977年发现有两株被云斑天牛(Batocerahorsfieldi Hope)危害。近两年发生愈来愈重,现危害株率达66%,其中有51株死亡,占被害株的19.5%。为摸索云斑天牛的防治方法,我们对此进行了观察研究,现将情况简报如下。一、云斑天牛产卵情况与气温有一定的关系。我所一般在6月下半月,当旬平均气温达24℃时,开始产卵。7月中下旬平均气温在27—28.5℃时,为产卵高峰。气温过高,产卵量减少。一般到8月下旬基本结束。
Since 1977, when I used a large number of olive oil cultivars, I discovered two strains of Batocerahorsfieldi Hope in 1977. In recent two years, more and more serious, the current rate of 66% of strains, of which 51 were killed, accounting for 19.5% of the victimized strains. In order to find out the prevention and cure method of the spotted celastrus, we conducted an observation study on the situation. The briefing is as follows. First, the cloudy day beetle spawning situation and temperature have a certain relationship. I usually in the second half of June, when the average temperature of 10 ℃ reached 24 ℃, began to lay eggs. In mid-July the average temperature at 27-28.5 ℃, the peak for spawning. The temperature is too high, reduce the amount of eggs. Generally ended in late August.