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根据1977年全国褐稻虱联合测报网获得的资料证明,褐稻虱不仅有向北迁移的规律,在秋季还有向南回迁的迹象。为进一步探明褐稻虱的回迁规律,为今后开展异地测报提供依据,1978年9月至10月,我们在凤阳县城西乡公社,在凤阳县植保站大力支持下,对褐稻虱的回迁问题,作了一些调查和卵巢解剖等分析工作。由于我们开展这项工作时间较短,加之水平有限,只能提出一些粗略的数据和看法。现小结如下:
According to the information obtained from the National Joint Test Network of Brown Planthopper in 1977, it is proved that the brown planthopper not only has the rule of migrating northward, but also shows signs of moving southward in the autumn. In order to further ascertain the law of the return of brown planthopper, and to provide the basis for carrying out the remote measurement in the future, from September to October 1978, we supported the commune of Xixiang in Fengyang County and the Plant Protection Station in Fengyang County, The relocation issue, made some investigations and ovarian anatomy analysis. Due to the short duration of our work and the limited level, we can only provide some sketchy data and opinions. Now summarized as follows: