据醴陵、萍乡一带农民反映,20年前他们的双季稻多是连作,就因为连作晚稻的收获较迟,刚好遇着螟虫盛发,往往成灾减产;後来将连作改成间作,虽然产量低些,但螟害不重,可以得到稳定的收成。目前政府号召改制增产,湘、赣间作稻区农民纷纷改间作为连作。一般改制後可增产100—150斤。但农民对於连作晚稻螟害的顾虑仍旧存在,迫切要求解决。为深入了解间改连後螟虫消长及其为害情况,进而寻求防治办法,华中农科所宜春水稻工作组虫害部分结合宜春农业试验站於1955年开始在宜春、萍乡及醴陵等间改连地区进行了调查。兹将初步结果整理如下: According to Liling and Pingxiang peasants, most of their double cropping rice was continuous cropping 20 years ago because of late harvesting even in late rice cropping, which happened to happen when the stem borers flourished. Yields are lower, but stem borer is not heavy, you can get a stable harvest. At present, the government has called for a system reform to increase production. Farmers in the rice-planting areas in Hunan and Jiangxi have successively changed their production to make successive operations. After the general restructuring can increase 100-150 pounds. However, the peasants’ concerns about the late rice borer crop persists and an urgent solution is needed. In order to gain a better understanding of the growth and decline of post-stem borers and their pests, and then to seek ways of prevention and treatment, the pest part of the Spring Rice Working Group in Huazhong Agricultural Branch should be combined with Yichun Agricultural Experimental Station in Yichun, Pingxiang and Liling areas The investigation. The preliminary results will be collated as follows: