biostudies-literatureChuai HYAgricultural Product Quality safety and Nutrition Health Innovation team project of Fujian Academy of Agricultural SciencesBasic Research Special Foundation of Public Research Institutes of Fujian ProvinceOpen project of Fujian Key Laboratory of Agro-Products Quality and Safety804https://www.ebi.ac.uk/biostudies/studies/S-EPMC9505760biostudies-literatureUnknown13(9)The papaya mealybug, <i>Paracoccus marginatus</i> Williams and Granara de Willink (Hemiptera: Pseudococcidae), is a polyphagous invasive pest in China. The effect that the shifting of the host plant has on the fitness of a polyphagous pest is critical to its prevalence and potential pest control. In order to assess the fitness changes of <i>P</i>. <i>marginatus</i> after transferal from potato (<i>Solanum tuberosum</i> (Tubiflorae: Solanaceae)) to papaya (<i>Carica papaya</i> (Parietales: Caricacea)), sweet potato (<i>Ipomoea batatas</i> (Tubiflorae: Convolvulaceae)), and alligator weed (<i>Alternanthera philoxeroides</i> (Centrospermae: Amaranthaceae)), the life table data of three consecutive generations were collected and analyzed using the age-stage, two-sex life table method. The resuInsectsFitness of the Papaya Mealybug, <i>Paracoccus marginatus</i> (Hemiptera: Pseudococcidae), after Transferring from <i>Solanum tuberosum</i> to <i>Carica papaya</i>, <i>Ipomoea batatas</i>, and <i>Alternanthera philoxeroides</i>.PMC9505760CXTD2021002APQSKF2019012020R1022007, 2020R1024005, 2019R1024-1Shi MZZheng LZChuai HYLi JYFu JWfalseFitness of the Papaya Mealybug, <i>Paracoccus marginatus</i> (Hemiptera: Pseudococcidae), after Transferring from <i>Solanum tuberosum</i> to <i>Carica papaya</i>, <i>Ipomoea batatas</i>, and <i>Alternanthera philoxeroides</i>.The papaya mealybug, <i>Paracoccus marginatus</i> Williams and Granara de Willink (Hemiptera: Pseudococcidae), is a polyphagous invasive pest in China. The effect that the shifting of the host plant has on the fitness of a polyphagous pest is critical to its prevalence and potential pest control. In order to assess the fitness changes of <i>P</i>. <i>marginatus</i> after transferal from potato (<i>Solanum tuberosum</i> (Tubiflorae: Solanaceae)) to papaya (<i>Carica papaya</i> (Parietales: Caricacea)), sweet potato (<i>Ipomoea batatas</i> (Tubiflorae: Convolvulaceae)), and alligator weed (<i>Alternanthera philoxeroides</i> (Centrospermae: Amaranthaceae)), the life table data of three consecutive generations were collected and analyzed using the age-stage, two-sex life table method. The resu2022-01-01T00:00:00Z2022 Sep2025-04-18T20:54:37.475Z2025-04-07T09:01:12.006ZS-EPMC95057603613550510.3390/insects13090804