Toxicity Test of Different Pesticides on Tobacco Root-knot Nematodes

• 作者: Enfa CHEN Fei DAI Peibo LI Quan ZHANG
• 来源期刊: 农业生物技术:英文版
• 学科: 农学
• 关键词: TOBACCO Root-knot nematode Medicament Virulence determination SCREENING
• 年，卷（期）: 2020,（5）
• 页码范围: 86-89
• 页数: 4页
• 分类号: S48

摘要

[Objectives]This study was conducted to quickly screen out effective and safe agents for controlling tobacco root knot nematode disease.[Methods]Six pesticides were tested and screened indoors at five different concentrations.[Results]The six pesticides all had toxic effects on the second-instar larvae of tobacco root-knot nematode,and the corrected mortality was positively correlated with the concentration and time of the pesticides,with the correlation coefficients above 0.8.From the perspective of inhibitory activity,the order was fosthiazate>abamectin>emamectin benzoate>cadusafos>ethoprophos>carbosulfan.Four pesticides that can be used in the field were selected.[Conclusions]This study provides a theoretical basis for field pesticide selection.