International Journal of Pest Management (2006) 52, 209-213

Shuijin Huang, Junfeng Xu and Zhaojun Han (2006)
Baseline toxicity data of insecticides against the common cutworm Spodoptera litura (Fabricius) and a comparison of resistance monitoring methods
International Journal of Pest Management 52 (3), 209-213
Abstract: A susceptible strain of Spodoptera litura (Fab.) was obtained and the baseline toxicity of more than 10 insecticides was established by both topical application and the leaf dipping method. Insecticide resistance was then monitored using insects collected from Nanjing, Jiangsu Province and Hexian, Anhui Province, China. Topical application was more sensitive for monitoring resistance to contact insecticides, and the leaf dipping method more sensitive for monitoring resistance to insecticides with stronger stomach action. The two field populations were shown to have high resistance to pyrethroids and moderate resistance to organophosphates and carbamates; however, the Nanjing population had low resistance to profenofos and methomyl. No resistance to monosultap, abamectin, hexaflumuron and fipronil was found in these populations. We propose that for control of this pest in these areas, pyrethroid insecticides should be prohibited, use of organophosphates and carbamates should be limited, and the other insecticides with no resistance, e.g., monosultap, abamectin, hexaflumuron and fipronil, should be used rationally and in rotation to delay resistance development.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Zhaojun Han

Research topic(s) for pests/diseases/weeds:
control - general
pesticide resistance of pest

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Spodoptera litura		China (south)
	Spodoptera litura		China (NE)