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我区位于江西南部,南与九连山相连,东和武夷山交界,西靠近罗霄山脉,全区范围在北纬24°30′——27°10′,东经113°52′——116°40′之间。从1977年起,我们在开展白背飞虱发生规律研究中,曾对当地虫源作过一些调查研究,现将初步结果简报如下。 1977、1978年两年冬春,曾对赣州市郊区低丘陵稻田禾蔸、红花草田和沟、圳边禾本科杂草作了间歇性调查。结果都查到了一些越冬虫源。如1977年1月17日于本所铁丝网内禾蔸中获五令若虫1头(当时仅1.5℃,前一天下午还下了小雪)。同年12月1、7、12、23日在本所一队红花草田先后查到长翅型成虫5头,若虫12头。1978年1月23日又在本所红花草田获长翅型雌虫1头。2月28日在石城县观下公社河坑大队白水生产队查到长翅型雄虫1头,五令若虫1头。3月9日又在本所红花田查获长翅型雄虫1头。
Our district is located in the south of Jiangxi Province, connected to Jiulianshan Hill in the south, Wuyishan Hill in the east and Loess Hill in the west. The whole area is between latitude 24 ° 30’-27 ° 10’N and longitude 113 ° 52’-116 ° 40 ’between. Since 1977, we carried out some studies on the occurrence of white-backed planthoppers in the law of occurrence of white-backed planthoppers. We present the preliminary results as follows. In 1977 and 1978, two years of winter and spring, we conducted intermittent surveys on grassland weeds, safflower grassland and ditch, and Shenzhen border grass weeds in the low-hilly rice fields in the suburbs of Ganzhou. The results have found some overwintering source. For example, on January 17, 1977, one nymphal of nymphaea naturopotentida was found in the grading of the barbed wire fence of our firm (only 1.5 ℃ at the time and the afternoon before that afternoon, light snow was also consumed). In December the same year on December 1, 7, 12, 23 in our team safflower grassland has found long-winged adult 5, 12 nymphs. On January 23, 1978, we also got one winged female in our safflower field. February 28 in Shicheng County Commune River Creek Brigade Baishui production team found long-winged male 1, 5 nymphs. On March 9, another 1 long-winged male was found in Honghua Tian.