A laboratory-based method to measure relative pesticide and spray oil efficacy against broad mite, Polyphagotarsonemus latus (Banks)(Acari: Tarsonemidae) |
| |
| Authors: | Grant Herron Laura Jiang Robert Spooner-Hart |
| |
| Institution: | (1) Biological and Chemical Research Institute, NSW Agriculture, PMB 10, 2116 Rydalmere, Australia;(2) Hawkesbury, School of Horticulture, University of Western Sydney, Bourke Street, 2753 Richmond, Australia |
| |
| Abstract: | Six pesticides and two spray oils were tested against Polyphagotarsonemus latus. The chemicals were evaluated under laboratory conditions, requiring the development of a novel bioassay method, which is reported here. The pesticide toxicities fell into three distinct groups, namely abamectin, conventional pesticides and oils. The relative pesticide toxicities at the LC50 level were abamectin 4.9×10-8 g ai l-1, endosulfan 1.1×10-3 g ai l-1, fenpyroximate 2.3×10-3 g ai l-1, pyridaben 4.1×10-3 g ai l-1, tebufenpyrad 4.4×10-3 g ai l-1, dicofol 4.5×10-3 g ai l-1, petroleum spray oil 3.4×10-1 g ai l-1 and canola oil 4.1×10-1 g ai l-1. The calculation of the LC99.9 values allows for resistance monitoring in P. latus and the suggested discriminating concentrations are abamectin 1.0×10-4 g ai l-1; endosulfan, pyridaben and dicofol 1.0×10-1 g ai l-1 fenpyroximate and tebufenpyrad 5.0×10-1 g ai l-1. |
| |
| Keywords: | Bioassay log-dose probability resistance testing discriminating-concentration IPM broad mite Polyphagotarsonemus latus |
| 本文献已被 SpringerLink 等数据库收录！ |
|
