论文部分内容阅读
1980年在柳州露塘农场甘蔗田中,发现蔗叶背面上有一种新的瘿螨为害甘蔗,经忻介六教授鉴定为扁岐甘蔗羽爪螨的一个新种,定名为扁岐甘蔗羽爪螨Diptiloplatus sacchari Shin et Dong。据调查,我区各地蔗区均有为害,受害程度因环境而异。1980年露塘农场12,000亩蔗田大面积发生,为害较重的有4,000多亩,蔗株受害率达100％。用100倍双目解剖镜观察(30平方厘米),平均每片叶上有虫400头以上,多的达2753头。为此,我们于80—82年进行了定点调查和饲养观察,现将初步结果报道如下:
In 1980 in Liuzhou Lu Tang farm sugar cane fields, found on the back of sugarcane leaves there is a new scab mite damage sugarcane, Professor Xin Jie Liu identified as a new species of flat-like sugarcane mites, named as flat-bodied Sugarcane mite Diptiloplatus sacchari Shin et Dong. According to the survey, all the sugar cane areas in our region are harmful, the degree of victimization varies with the environment. In 1980, 12,000 mu of cane fields were exposed on a large scale in Luntang Farm, affecting more than 4,000 mu of severely damaged cane and 100% of cane damage. With 100 times binocular dissection microscope observation (30 square centimeters), an average of more than 400 per insect on the leaf, up to 2753 more. To this end, we carried out targeted surveys and rearing observations in 1980-82. We now report the preliminary results as follows: