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Effect of temperature on the survival and infectivity of Pseudotheraptus devastans vector

dc.contributor.authorFokunang, C.
dc.contributor.authorDixon, A.
dc.contributor.authorIkotun, T.
dc.date.accessioned2019-12-04T11:36:29Z
dc.date.available2019-12-04T11:36:29Z
dc.date.issued2004
dc.identifier.citationFokunang, C.N., Dixon, A. G. & Ikotun, T. (2004). Effect of temperature on the survival and infectivity of Pseudotheraptus devastans vector. Mycopathologia, 158(3), 385.
dc.identifier.issn0301-486X
dc.identifier.urihttps://hdl.handle.net/20.500.12478/6260
dc.description.abstractThe aim of this study was to investigate under a controlled environment, the effect of temperature on the survival and infectivity of Pseudotheraptus devastans Distant, a cassava anthracnose disease vector. The insect P. devastans was collected from young cassava (Manihot esculenta Crantz) field plots, at the International Institute of Tropical Agriculture, (IITA), Ibadan, Nigeria. A mixture of the different developmental stages of eggs, first to fifth instar nymphs, and adults, were incubated in controlled environment chambers, under various constant temperatures of: 15, 17, 22, 25, 27, 30, and 35°C. Relative humidity at different temperature conditions were recorded and maintained at 90%, 85%, 80%, 75%, 70%, 65%, and 60%, respectively. A significant increase in insect survival was observed between 22 and 27°C temperature conditions while a significant decrease in survival was observed at 15°C and above 30°C. Lesion number, lesion diameter and infectivity among the insect stages varied as a function of temperature and relative humidity. Infectivity was highest at 22–25°C maintained at 75–80% RH and lowest at 15°C and above 30°C maintained respectively, at 65% RH and 90% RH. There was considerable low vector infectivity due to low survival of the insects at extreme temperatures.
dc.language.isoen
dc.subjectCassava
dc.subjectBugs
dc.subjectCoreidae
dc.subjectHeteroptera
dc.subjectVectors
dc.titleEffect of temperature on the survival and infectivity of Pseudotheraptus devastans vector
dc.typeJournal Article
cg.contributor.affiliationUniversity of Ibadan
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Health
cg.iitasubjectDisease Control
cg.iitasubjectCassava
cg.iitasubjectPests Of Plants
cg.accessibilitystatusLimited Access
cg.reviewstatusPeer Review
local.dspaceid107542
cg.identifier.doihttps://doi.org/10.1007/s11046-004-8667-z


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