中国水稻科学

中国水稻科学

• 研究报告 • 上一篇    下一篇

呋喃丹对白背飞虱的致死与拒食作用

刘光杰；R M WILKINS   

  1. 纽卡索大学农业及环境科学系， 英国纽卡索市
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1992-09-05 发布日期:1992-09-05

Lethal and Antifeeding Effects of Carbofuran against the Whitebacked Planthopper, Sogatella furcifera (Horvath) (Homoptera: Delphacidae)(in English)

Liu Guangjie; R M Wilkins   

  • Received:1900-01-01 Revised:1900-01-01 Online:1992-09-05 Published:1992-09-05

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被引次数

3

摘要： 就呋喃丹对白背飞虱雌成虫的致死与拒取食作用进行了研究。采用叶鞘涂抹接、点滴法和根部施药法施用呋喃丹以后，观测白背飞虱的死亡率和取食反应。呋喃丹对白背飞虱的致死中浓度(LD50分别为：0.51 μg／cm2 (叶鞘涂抹法)，0.86 μg／g(点滴法)和8.82μmol／L(根部施药法)。其中， 点滴呋喃丹对飞虱最有效。当白背飞虱在呋喃丹以0.016μg／cm2涂抹在感虫品种TN1稻株叶鞘上和将稻株根部浸入0.1 μmol／L药掖里，以及在每头飞虱上点滴0.002 ng后， 飞虱在这些处理过的稻株上取食后其蜜露排泄量明显减少。白背飞虱在用呋喃丹处理过TN1根部的稻株上的取食行为也采用一种电子装置进行了监测。

关键词: 拒食性, 呋喃丹, 致死作用, 白背飞虱

Abstract: Lethal and antifeeding effects of carbofuran against the adult females of Sogatella furcifera were studied by measuring insect mortality and feeding reduction with leaf sheath, topical and root-zone applications. The LD50 values for leaf sheath, topical and root-zone applications were 0.51μg/cm2, 0.86 μg/g, and 8.82 μmol/l, respectively. Among the application methods, topical application of carbofuran was most effective against S. furcifera. Honeydew excretion reduced significantly when S. furcifera fed on the leafsheaths of susceptible TN1 plants treated with carbofuran in 0.016 μg/cm2 and in 0.1 μmol/l at root zone, and when insects were treated topically at 0.002 ng/female. Feeding behaviour of S. furcifera on TN1 plants treated at the root zone was also investigated using an electronic device.

Key words: Antifeeding, Carbofuran, Lethal action, Sogatella furcifera, Toxicology