期刊文章详细信息
Studies on the Relationship between Occurrence Degree of Cotton Bollworm and Rainfall
棉铃虫发生程度与降雨量关系的研究(英文)
文献类型:期刊文章
机构地区:[1]鹿邑县气象局,河南鹿邑477200 [2]西华县气象局,河南西华466630 [3]泛区气象局,河南泛区466632
出 处:《Agricultural Science & Technology》
基 金:the Key Project of New Technology Innovation of China Meteorological Administration (CMATG2005Z02)~~
年 份:2008
卷 号:9
期 号:2
起止页码:139-142
语 种:中文
收录情况:CAB、CAS、CSA、CSA-PROQEUST、PROQUEST、普通刊
摘 要:[ Objective ] The aim of the study is to investigate the factors causing the outbreak of cotton bollworm and to provide effective measures for controlling cotton bollworm. [ Method] Based on the analysis of the data about insect and weather situation in Luyi County in 32 years, the meteorological, prediction model was established for monitoring the quarterly or monthly occurrence trend of cotton bollworm. [Result] The cotton boillworm occurred slightly in the years with rainfalls of 3 months over 500 nm and severely in the years with rainfalls of 3 months: less than 400 rim. The results of correlation analysis show that annual occurrence degrees of cotton bollworm and occurrence degrees of 4^th generation of cotton bollworm are extremely negatively correlated with rainfall during June - August; the occurrence degrees of 3^rd and 4^th generations of cotton bollworm are also extremely negatively correlated with rainfall in July. [ Conclusion] The occurrence of cotton bollworm in field is heavily influenced by rainfall in at its occurrence stage; moreover, the rainfall during June - August is the decisive factors influencing the occurrence of cotton bollworm.
关 键 词:Cotton bollworm Occurrence degree RAINFALL RELATIONSHIP
分 类 号:S435.622]
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