柳州沙塘地区稻瘿蚊常有中等偏轻程度发生,个别年份也会严重,但1984年仅灯诱得成虫2只(7月21日、9月29日各1只),查自1966年至1983年(缺1969年)17年平均每年诱得蚊数为1939只,最多的1980年为4670只,最少的1966年也有35只。成蚊扑灯少,与田间为害程度的关系怎样呢?笔者1984年 In the Shantang area of ​​Liuzhou, the rice gall midge moderately mild degree occurred, and the individual years would be serious. However, only 2 adults were induced by lamp in 1984 (1 on July 21 and September 29 respectively) By 1983 (in the absence of 1969), the average number of mosquitoes induced in each of the 17 years was 1,939, with a maximum of 4,670 in 1980 and a minimum of 35 in 1966. Mosquito litter less, and the degree of damage to the field how? I in 1984