摘要
2015~2021年选择有二点委夜蛾幼虫发生,麦茬高度(15 cm左右)相当,人工常规尺量麦秸粉碎长度分别为≤5 cm、5.1~10 cm、10.1~15 cm的3种田块,采用五点取样法调查虫量,顺垄调查被害株率,以麦秸粉碎长度10.1~15 cm田块虫量和被害株率为对照(景县以未进行麦秸粉碎的田块为对照),分析了麦秸粉碎长度对二点委夜蛾的控制效果。结果表明:麦秸粉碎长度≤5 cm时,麦秸可以自然沉降于麦茬之间,不能形成"麦茬上覆盖麦秸"的生态环境,防虫效果平均为97.4%,保苗率高达100%,值得大面积推广应用;麦秸粉碎长度为5.1~10 cm时,防虫效果平均为80.3%,保苗率平均为70.1%,虽然有一定的防控效果,但并不理想,玉米播种时需要结合清除玉米播种行麦秸、灭茬、秸秆离田利用等生态调控防控。
From 2015 to 2021,three kinds of fields were selected with wheat stubble heights of about 15 cm and wheat straw crushing length of≤5 cm,5.1-10 cm and 10.1-15 cm,respectively,where Athetis lepigone larval occurred,five point sampling method was used to investigate the amount of pests,and the rate of damaged plants were investigated along the ridge,taking the amount of pests and the rate of damaged plants in the fields with wheat straw crushing lengths of 10.1-15 cm as control,while taking fields without wheat straw crushing as control in Jingxian County.The control effect of wheat straw crushing length on A.lepigone was analyz ed.The results showed that when the wheat straw crushing length was≤5 cm,the wheat straw could naturally settle among the wheat stubbles,and could not form an ecological environment of covering the wheat stubble with wheat straw.The average pest control effect was 97.4%,and the seedling protection rate was 100%,which was worth promoting and applying in a large area.When the wheat straw crushing length was 5.1-10 cm,the average control effect was 80.3%,and the average seedling protection rate was 70.1%.Although there was a certain prevention and control effect,it was not ideal.When corn is sown,it is necessary to combine ecological regulation and control such as removing the wheat straw from the corn sow ing line,stubble eradication,and straw utilization off the field.
作者
李秀芹
陈立涛
刘莉
崔彦
韩晓辉
蔡晓玲
陈哲
韩玉芹
程瑞玲
李树洋
张志英
张颖
张立娇
王永芳
董志平
LI Xiu-qin;CHEN Li-tao;LIU Li;CUI Yan;HAN Xiao-hui;CAI Xiao-ling;CHEN Zhe;HAN Yu-qin;CHENG Rui-ling;LI Shu-yang;ZHAGN Zhi-ying;ZHANG Ying;ZHANG Li-jiao;WANG Yong-fang;DONG Zhi-ping(Hebei Provincial Plant Protection and Inspection Station,Shijiazhuang 050035,China;Guantao County Plant Protection and Inspection Station,Guantao 057750,China;Jingxian County Plant Protection and Quarantine Station,Jingxian 053500,China;Xinji City Plant Protection and Inspection Station,Xinji 052360,China;Wuqiao County Plant Protection and Inspection Station,Wuqiao 061800,China;Cixian County Plant Protection Station Cixian,Cixian 056500,China;Zhengding County Plant Protection and Inspection Station,Zhengding 050800,China;Luquan District Plant Protection and Quarantine Station of Shijiazhuang,Luquan 050200,China;Institute of Millet,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050035,China)
出处
《河北农业科学》
2023年第1期42-46,共5页
Journal of Hebei Agricultural Sciences
基金
河北省农林科学院创新工程项目(2022KJCXZX-GZS-3)
河北省重点研发计划乡村振兴技术创新专项(22326505D)
河北省农业农村厅科技计划项目(冀农科20013)。
关键词
二点委夜蛾
麦秸粉碎长度
防治效果
Athetis lepigone
Wheat straw crushing length
Control effect
