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1956年内,华北农研所虫害部分包括下列诸课题、兹将主要成果一并报导如下: 1.蝗虫防治研究 明确了内蒙、华北及东北部分地区蝗虫发生的种类、分布及与环境的依赖关系。明确了筱麦蝗的发生时期、迁移规律及防治适期。 2.草地螟防治研究 明确了草地螟的生活史及其在内蒙、华北及东北的分布情况,改进了拉纲防治法。 3.粘虫防治研究 明确了粘虫在河北大部地区
1956, North China Institute of Pest Insects include the following topics, the main results will be reported together as follows: 1. Locust prevention and control studies have identified the Inner Mongolia, North China and some parts of Northeast China locust occurrence, distribution and dependence on the environment. Clarify the occurrence of Locusts Locust, the law of migration and control of the right period. 2. Meadow borer prevention and control studies have clearly defined the life history of Meadow Stem and its distribution in Inner Mongolia, North China and Northeast China, and improved Lajang control law. 3. Mythimna separata Walker Studies have clearly identified the armyworm in most parts of Hebei