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dc.contributor.authorLarayetan, A.A.
dc.contributor.authorAdedire, C.O.
dc.contributor.authorUmeh, V.
dc.contributor.authorGoergen, G.
dc.date.accessioned2024-01-09T14:28:11Z
dc.date.available2024-01-09T14:28:11Z
dc.date.issued2021
dc.identifier.citationLarayetan, A.A., Adedire, C.O., Umeh, V. & Goergen, G. (2021). Seasonal abundance of Paracoccus marginatus (Williams and Granara de Willink)(Hemiptera: Pseudococcidae) and damage to papaya seedlings in three agroecological zones in Southwestern Nigeria. Nigerian Journal of Entomology, 37, 54-71.
dc.identifier.issn0331-0094
dc.identifier.urihttps://hdl.handle.net/20.500.12478/8371
dc.description.abstractThe Papaya Mealybug, Paracoccus marginatus Williams and Granara de Willink, is an invasive species. The abundance of the papaya mealy bug and its damage to seedlings were investigated in the field at three agro-ecological zones: which includes Akure (Rainforest), Ogbomoso (Guinea savannah), Ibadan (Derived savannah) in the 2016 growing seasons. At each site, 10 healthy mother plants with fruit (> 17cm GBH) were randomly selected from which five infested and non-infested leaves (fifth to the 13th leaf from the top) were randomly selected. Number of infesting larvae were counted manually. Infestation, typified by woolly presence of the larvae on the leaves was 80.08% on the leaves and 75.58. 6% on the fruits. The most susceptible papaya was recorded for Ogbomoso in March. This was done to determine the combined effects of time of the year (period) and geographical location (Agroecology) on populations and infestations of adult and immature P. marginatus on fruits and leaves of Pawpaw, and it was not significantly different (p> 0.05) from the other levels of infestation at the other locations in the same month of March. The highest population of P. marginatus on Pawpaw leaves (60.33) and fruits (59.83%) was recorded for Akure in March. Results showed that there was general reduction in mean number of healthy leaves of papaya seedlings as the age of the seedlings increased. It could be concluded that P. marginatus were able to establish colonies on papaya seedlings, it is only in rare cases on a few susceptible genotypes, that mealybugs colonize plants during vegetative stage.
dc.format.extent54-71
dc.language.isoen
dc.subjectCarica Papaya
dc.subjectMealybugs
dc.subjectParacoccus Marginatus
dc.subjectAgroecology
dc.subjectDisease Control
dc.subjectPlant Health
dc.titleSeasonal abundance of Paracoccus marginatus (Williams and Granara de Willink) (Hemiptera: Pseudococcidae) and damage to papaya seedlings in three agroecological zones in Southwestern Nigeria
dc.typeJournal Article
cg.contributor.affiliationFederal University of Technology Akure
cg.contributor.affiliationNational Horticultural Research Institute, Nigeria
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemePlant Production and Health
cg.identifier.bibtexciteidLARAYETAN:2021
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectDisease Control
cg.iitasubjectFood Security
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Health
cg.journalNigerian Journal of Entomology
cg.notesOpen Access Article
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.36108/NJE/1202/73.0150
cg.iitaauthor.identifierGeorg Goergen: 0000-0003-4496-0495
cg.futureupdate.requiredNo
cg.identifier.volume37
cg.contributor.acknowledgementsSincere thanks to the National Horticultural Research Institute, Ibadan, for the technical and financial support.


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