Screening and Sensitivity of Pesticides for Controlling New Invasive Pest <i>Paracoccus marginatus</i> on Papaya Plants

LI Jian-yu; SHI Meng-zhu; WANG Qiu-yue; LUO Yu-ying; ZHENG Li-zhen; FU Jian-wei

doi:10.19303/j.issn.1008-0384.2020.01.011

Volume 35 Issue 1

Jan. 2020

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LI J Y, SHI M Z, WANG Q Y, et al. Screening and Sensitivity of Pesticides for Controlling New Invasive Pest Paracoccus marginatus on Papaya Plants [J]. Fujian Journal of Agricultural Sciences，2020，35（1）：74−79 doi: 10.19303/j.issn.1008-0384.2020.01.011

Citation:

LI J Y, SHI M Z, WANG Q Y, et al. Screening and Sensitivity of Pesticides for Controlling New Invasive Pest Paracoccus marginatus on Papaya Plants [J]. Fujian Journal of Agricultural Sciences，2020，35（1）：74−79 doi: 10.19303/j.issn.1008-0384.2020.01.011

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Screening and Sensitivity of Pesticides for Controlling New Invasive Pest Paracoccus marginatus on Papaya Plants

doi: 10.19303/j.issn.1008-0384.2020.01.011

LI Jian-yu^{1, 2, 3
,},
SHI Meng-zhu^{1, 2, 3},
WANG Qiu-yue^{1, 3},
LUO Yu-ying^{1, 3},
ZHENG Li-zhen¹,
FU Jian-wei^{1, 2, 3
,
,}

1.
Institute of Plant Protection, Fujian Academy of Agricultural Sciences/Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests/Fuzhou Scientific Observing and Experimental Station of Crop Pests, Ministry of Agriculture and Rural Affairs, Fuzhou, Fujian　350013, China
2.
Institute of Quality Standards & Testing Technology for Agro-products, Fujian Academy of Agricultural Sciences/Fujian Key Laboratory of Agro-products Quality & Safety, Fuzhou, Fujian　350001, China
3.
State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, Fujian　350002, China

Received Date: 2019-12-02
Rev Recd Date: 2020-01-05
Publish Date: 2020-01-01

Abstract

Abstract

Objective Tests to screen and determine sensitivities of insecticides for controlling Paracoccus marginatus Williams and Granara DE Willink, an important new invasive pest on papaya plants in China, were conducted. Method The sensitivities of 2^nd nymphs and female adults of P. marginatus to 15 insecticides were determined by means of leaf immersion for pesticide selection. Result Five applications of pesticides including 25 g·L⁻¹L lambda-cyhalothrin SC, 10% chlorfenapyr SC, 4.5% beta-cypermethrin EC, 15% pyridaben EW, and 15% tolfenpyrad SC with high toxicity to P. marginatus were selected for further evaluation. Among them, the lethal medium concentration (LC₅₀) of 25 g·L⁻¹ lambda-cyhalothrin SC was the lowest with LC₅₀ on the 2^nd nymphs and female adults being 0.243 0 mg·L⁻¹ and 0.782 1 mg·L⁻¹, respectively. It was followed by 10% chlorfenapyr SC, 4.5% beta-cypermethrin EC, 15% pyridaben EW and 15% tolfenpyrad SC in that order. The 2^nd nymphs were significantly more sensitive to the insecticides than the female adults. Conclusion It appeared that 25 g·L⁻¹ lambda-cyhalothrin SC, 10% chlorfenapyr SC, 4.5% beta-cypermethrin EC, 15% pyridaben EW or 15% tolfenpyrad SC could be used to control or prevent a P. marginatus outbreak.
- new invasive pest,
- Paracoccus marginatus,
- pesticides,
- sensitivity determination

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References(28)

References

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