PLoS ONE (2019) 14 (1 - e0208058)

Qiuling Tang, Kangsheng Ma, Hsin Chi, Youming Hou and Xiwu Gao (2019)
Transgenerational hormetic effects of sublethal dose of flupyradifurone on the green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae)
PLoS ONE 14 (1 - e0208058)
Abstract: Both inhibitory and stimulatory (known as hormesis) effects of the sublethal flupyradifurone, a butenolide insecticide, on Myzus persicae Sulzer (Hemiptera: Aphididae) were investigated for incorporating it into integrated pest management (IPM). A leaf-dip bioassay showed that flupyradifurone was very toxic against adult M. persicae with a 48 h LC₅₀ of 8.491 mg/L. Using the age-stage two-sex life table approach, we assessed the effects of LC₂₅ of flupyradifurone on adult M. persicae and its progeny (F₁ and F₂). On the one hand, aphids exposed to flupyradifurone had significantly negative effects on the life history traits acrossing the generations, such as reduced the adult longevity and fecundity of F₀, shortened the duration of third instar and fourth instar nymphs, preadult period and the pre-reproductive period of F₁, and decreased the reproductive days and adult longevity of F₂. On the other hand, stimulatory effects on the duration of pre-adult, adult reproductive days, and reproduction of F₁ were observed in the flupyradifurone-treated aphids. Consistently with the stimulation on individual traits, a higher net reproductive rate (R₀) of F₁ and a shorter mean generation time (T) of F₂ were observed in the flupyradifurone-treated aphids, although the other population parameters including the intrinsic rate of increase (r), finite rate of increase (λ) and T of F₁ and R₀, r and λ of F₂ were not significantly affected. These results revealed that adult M. persicae exposed to sublethal concentration of flupyradifurone can induce hormetic effects on F_1, and also cause negative effects on F₂. Our results would be useful for assessing the overall effects of flupyradifurone on M. persicae and the hormetic effects should take into consideration when use flupyradifurone for control M. persicae.
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Database assignments for author(s): Xi-Wu Gao, Hsin Chi

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Myzus persicae