摘要
家白蚁分群是分期分批进行的,一个群体内的成虫出现期表现出先后差异,若虫甚至有重叠现象。 分群时对温度、湿度和气压均有比较严格的要求。在广东地区,分群一般在每年4月下旬或5月初为始飞期,5月中为高峰期,分群末期则发生在5月下旬到6月之间。分群时气温在21.7—29.4℃的范围,多数在26—27℃;大气相对湿度介于82—99%之间,以85—90%最为常见;气压低于一个大气压;降水量的条件要求不甚严格。
This paper deals with a number of biological problems of colonizing flight of Coptotermes formosanus Shiraki. In a group of Coptotermes formosanus Shiraki, colonizing flight is carried oat in different times. The winged image emerging time varies, there arc even overlap phenomena. The colonizing flight occurs in the end of April or the beginning of May in Guangdong province. The peak stage is in the middle of May. The last stage is in the end of May or June, when colonizing flight occurs, the temperature ranges from 21.7 to 29.4℃, more often from 26 to 27℃- Relative humidity is between 82 to 99% usually 85 to 90%. The atmosphere is below one atmosphere-Rain is not indispensable during the days when flights are colonized.
