Influence of Pymetrozine on Feeding Behaviors of Three Rice Planthoppers and a Rice Leafhopper using Electrical Penetration Graphs
文献类型: 外文期刊
第一作者: He, Yueping
作者: He, Yueping;Zhang, Juefeng;Chen, Jianming;Chen, Li;Chen, Liezhong;Xiao, Pengfei;Wu, Quancong;Zhu, Yu Cheng
作者机构:
关键词: pymetrozine;Nilaparvata lugens;Sogatella furcifera;Laodelphax striatellus;Nephotettix cincticeps
期刊名称:JOURNAL OF ECONOMIC ENTOMOLOGY ( 影响因子:2.381; 五年影响因子:2.568 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Pymetrozine reportedly inhibits feeding of plant sap-sucking insects, such as aphids and brown planthopper (Nilaparvata lugens (St?l)). By using electrical penetration graph (EPG), this study was conducted to investigate any differential effect of pymetrozine on the feeding behaviors of four major rice sap-sucking insect species, 1) N. lugens, 2) white-backed planthopper (Sogatella furcifera (Horva' th)), 3) small brown planthopper (Laodelphax striatellus (Falle' n)), and 4) green rice leafhopper (Nephotettix cincticeps Uhler). On pymetrozine-free TN1 rice plants, white-backed planthopper and small brown planthopper showed a signiTcantly less activity in the phloem phases than brown planthopper or green rice leafhopper while green rice leafhopper engaged in relatively more xylem ingestion than brown planthopper, white-backed planthopper, and small brown planthopper. On the plants treated with 100 mg liter 1 of pymetrozine, all four insect species showed signiTcant increases, in total duration of nonprobing and signiTcant decreases in the activities in phloem tissue, while all species showed similar feeding behavior during the pathway and xylem phases. This study revealed that, regardless of whether the insects on untreated plants spent more time feeding on phloem than xylem (brown planthopper) or more time on xylem than phloem (green rice leafhopper) or similar times on phloem and xylem (white-backed planthopper and small brown planthopper), their feeding behavior was disturbed by pymetrozine and exhibited similar patterns of sharp decline in activity in the phloem tissue and a signiTcant increase the nonprobing.
分类号: Q969.9
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