沈阳地区大豆田蛴螬在土壤中的分布调查  

Distribution of White Grub in Soybean Field in Soil in Shenyang Region

作　　者：赵彤华[1] 徐蕾[1] 许国庆[1] 钟涛[1] 王哲[1] ZHAO Tong-hua;XU Lei;XU Guo-qing;ZHONG Tao;WANG Zhe(Institute of Plant Protection, Liaoning Academy of Agricultural Sciences, Shenyang, Liaoning 110161)

机构地区：[1]辽宁省农业科学院植物保护研究所,辽宁沈阳110161

出　　处：《辽宁农业科学》2019年第2期85-87,共3页Liaoning Agricultural Sciences

基　　金：国家重点研发计划项目(2018YFD020100407)

摘　　要：为调查大豆田蛴螬分布情况,采用九宫格法,分别于春季、大豆苗期和秋季开展实地挖土调查。结果表明,4月30日蛴螬还潜于土深30 cm以下,至大豆播种时最浅已上行至土深5～10 cm处;在大豆幼苗阶段,蛴螬的为害区域集中在土壤深度0～5 cm范围内,5 cm以下虫量为0;9月末开始,蛴螬逐渐下潜,至10月10日大豆采收时集中在土深10 cm以上范围内活动,抓住此时机进行调查,即可作为预测当年越冬基数的理论依据。In order to investigate the distribution of soybean field ridges, the Jiugong grid method was used to conduct field excavation surveys in spring, soybean seedling and autumn. The results showed that on April 30, the locust was still buried below 30 cm in depth, and the shallowest at the time of soybean planting had reached 5~10 cm deep;in the soybean seedling stage, the damage area of cockroach was concentrated in soil depth 0~5. Within the range of cm, the amount of insects below 5 cm is 0;at the end of September, the sputum gradually dive, and when the soybeans are harvested on October 10, they concentrate on the soil depth of 10 cm or more, and seize the opportunity to investigate. As a theoretical basis for predicting the wintering base of the year.

关 键 词：蛴螬 分布调查 迁移 

分 类 号：S435.651[农业科学—农业昆虫与害虫防治]