Acta Entomologica Sinica (2009) 52, 52-58
Yan-Hui Lu, Ting Yang and Xi-Wu Gao (2009)
[Establishment of baseline susceptibility data to various insecticides for aphids Rhopalosiphum padi (Linnaeus) and Sitobion avenae (Fabricius) (Homoptera: Aphididae) by the method of residual film in glass tube]
Acta Entomologica Sinica 52 (1), 52-58
Abstract: [Aim] The objective of this research was to establish susceptible toxicity baselines of two wheat aphids Rhopalosiphum padi and Sitobion avenae to 22 insecticides.
[Methods] The method of the residual film in glass tube with 3 h exposure to insecticides was employed for determining toxicity of insecticides to both wheat aphid species, which were originally collected from different provinces of China during 2005-2007 and reared on wheat seedlings in the laboratory for more than 30 generations.
[Results] In R. padi, the LC50 values of susceptible toxicity baselines were 0.02 and 0.007 µg/cm2 for neonicotinoid insecticides, imidacloprid and acetamiprid respectively; 0.124 µg/cm2 for pymetrozin; 0.0026-0.70 µg/cm2 for carbamate insecticides, carbosulfan, thiodicarb, methomyl, pirimicarb and carbaryl; 0.005-0.065 µg/cm2 for organophosphate insecticides, triazophos, profenofos, omethoate, dimethoate, malathion, phoxim, dichlorvos and chlorpyrifos; 0.033-0.240 µg/cm2 for pyrethroid insecticides, lamba-cyhalothrin, beta-cypermethrin, deltamethrin, bifenthrin, fenvalerate and cypermethrin. In S. avenae, the LC50 values of susceptible toxicity baselines were 0.15 µg/cm2 and 0.12 µg/cm2 for neonicotinoid insecticides, imidacloprid and acetamiprid respectively; 0.41 µg/cm2 for pymetrozin; 0.005-0.76 µg/cm2 for carbamate insecticides carbosulfan, thiodicarb, methomyl, pirimicarb and carbaryl; 0.018-0.36 µg/cm2 for organophosphate insecticides, triazophos, profenofos, omethoate, dimethoate, malathion, phoxim, dichlorvos and chlorpyrifos and 0.20-2.94 µg/cm2 for pyrethroid insecticides, lamba-cyhalothrin, beta-cypermethrin, deltamethrin, bifenthrin, fenvalerate and cypermethrin.
[Conclusion] Susceptible toxicity baselines of both R. padi and S. avenae to 22 insecticides established in this study could be used as a reference for resistance monitoring or other related researches. The insecticide susceptibility is higher in R. padi than in S. avenae for most of insecticides.
(original language: Chinese)
Database assignments for author(s): Xi-Wu Gao
Research topic(s) for pests/diseases/weeds:
control - general
pesticide resistance of pest
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
|---|---|---|---|---|
| Sitobion avenae | ||||
| Rhopalosiphum padi |
