Umina Paul A, Lord Alan, Micic Svetlana, Edwards Owain
School of BioSciences, Bio21 Institute, The University of Melbourne, Parkville, Victoria, Australia.
Cesar, 293 Royal Parade, Parkville, Victoria, Australia.
Pest Manag Sci. 2017 Aug;73(8):1719-1724. doi: 10.1002/ps.4520. Epub 2017 Feb 7.
The redlegged earth mite (Halotydeus destructor) is an agricultural pest in Australia that attacks a wide variety of crops and pasture species. Chemicals remain an important part of control strategies for H. destructor, despite the existence of resistance to pyrethroid insecticides in this species. Recent chemical control failures involving a second insecticide class, organophosphates, were investigated using pesticide bioassays.
We confirmed, for the first time, resistance to organophosphates in H. destructor, and show that resistance is not confined to a single property, or region. There was no evidence that resistance to organophosphorus chemicals has evolved in Australian states outside of Western Australia.
These findings demonstrate the strong evolutionary capability of H. destructor and highlight the need for ongoing resistance surveillance within Australia. © 2017 Society of Chemical Industry.
红腿土螨（Halotydeus destructor）是澳大利亚的一种农业害虫，会侵袭多种农作物和牧草品种。尽管该物种已对拟除虫菊酯类杀虫剂产生抗性，但化学药剂仍是红腿土螨防治策略的重要组成部分。近期，利用农药生物测定法对涉及第二类杀虫剂（有机磷类）的化学防治失败情况进行了调查。
我们首次证实红腿土螨对有机磷类产生了抗性，并表明这种抗性并不局限于单一特性或区域。没有证据表明澳大利亚西澳大利亚州以外的其他州出现了对有机磷化学药剂的抗性进化。
这些发现证明了红腿土螨强大的进化能力，并突出了澳大利亚持续进行抗性监测的必要性。© 2017化学工业协会。
