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吴荣宗同志在昆虫知识第7卷第1期中提出“广东晚稻粘虫大发生虫源的探讨”一文,对作者“南方粘虫之研究”等文发表了不同的见解,作者重新再列举一些资料,提出几点意见,与吴荣宗同志商榷,并提出共同讨论。 央荣宗同志在上述文章内提出以下几个主要论点: 1.广东夏季普遍有粘虫、幼虫、踊及成虫,只是密度较低,这可能是大发生的主要虫源。 2.晚稻粘虫发生数量与夏季旱地作物虫口密度关系密切。 3.各地或同一县内不同环境条件地区大发生年份及猖獗期不完全一致,是由本地由源在不同环境条件下,虫口数量积累不平衡所致,与“寒露风”无关。 4.在地理上存在粘虫的历史发生区,这是由于历史发生区的环境条件,适于本地虫源的发育和繁殖,及利于群体增长所形成的。
Comrade Wu Rongzong put forward a paper entitled “Discussion on the Occurrence of Larvae of Mythimna separata in Guangdong Province” in Insect Knowledge Volume 7, Number 1, and gave different opinions on the author, such as “The Study on Southern Armyworm”. The author re-enumerated some information, Put forward some opinions, discuss with Comrade Wu Rongzong and put forward joint discussions. Comrade Yang Rongzong put forward the following major points in the above article: 1. The widespread population of armyworms, larvae, leprosy and adults in Guangdong in summer is only at a lower density, which may be the major source of large-scale occurrence. The occurrence of late-stage rice armyworms and summer dry-land crop population density are closely related. 3. The occurrence and rampancy of major occurrences and rampant periods in different parts of the same or different environmental conditions in the same county are caused by the imbalance in the quantity of insects population caused by the local sources under different environmental conditions and are not related to the “cold and dew winds”. 4. There is geographically the historical occurrence area of armyworm, which is due to the environmental conditions in the historical area, suitable for the development and reproduction of the local insect source, and beneficial to the growth of the group.