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昆虫知识第8卷第5期刊登刘家仁同志的“我国小麦吸浆虫的地理分布”一文,对前人所作的小麦吸浆虫分布区域作了进一步论证和推断,这对研究农业昆虫的区划是一个良好启示。但在该文的“一、华北平原小麦吸浆虫很少分布的原因”一节中,有些地方说得不够清楚,有些地方则属于臆断的性质。现就下列问题提出补充和讨论,希刘家仁同志和共他同志给予指正。 一、对原文“江苏在淮阴以北小麦吸浆虫都很少”的补充:首先把“很少”是个什么标准弄清。农业部植物保护局编的《农作物病虫害发生规律及其预测预
Insect Knowledge Vol. 8, No. 5 Published by Comrade Liu Jia-ren, “Geographical distribution of Myzus persicae in China”, this paper makes further proofs and inferences about the distribution areas of Myzoglossus pulchricornis in the past. This is a good inspiration for studying the division of agricultural insects. However, in the section of “1, The reason why somaclone is scarcely distributed in the North China Plain”, some places are not quite clear enough, while others are of a conjectural nature. We hereby make supplements and discussions on the following issues. We hope that Comrade Liu Jiaren and a total of his comrades will give correct instructions. First, the original “Jiangsu in the North Huaiyin wheat midgear are very few” added: First of all, “very few” is a standard to find out. Plant Protection Institute of Agriculture, "Crop Pests and Diseases Occurrence and Prediction