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Effect of temperature on the survival and infectivity of Pseudotheraptus devastans vector
dc.contributor.author | Fokunang, C. |
dc.contributor.author | Dixon, A. |
dc.contributor.author | Ikotun, T. |
dc.date.accessioned | 2019-12-04T11:36:29Z |
dc.date.available | 2019-12-04T11:36:29Z |
dc.date.issued | 2004 |
dc.identifier.citation | Fokunang, 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.issn | 0301-486X |
dc.identifier.uri | https://hdl.handle.net/20.500.12478/6260 |
dc.description.abstract | The 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.iso | en |
dc.subject | Cassava |
dc.subject | Bugs |
dc.subject | Coreidae |
dc.subject | Heteroptera |
dc.subject | Vectors |
dc.title | Effect of temperature on the survival and infectivity of Pseudotheraptus devastans vector |
dc.type | Journal Article |
cg.contributor.affiliation | University of Ibadan |
cg.contributor.affiliation | International Institute of Tropical Agriculture |
cg.coverage.region | Africa |
cg.coverage.region | West Africa |
cg.coverage.country | Nigeria |
cg.isijournal | ISI Journal |
cg.authorship.types | CGIAR and developing country institute |
cg.iitasubject | Plant Diseases |
cg.iitasubject | Plant Health |
cg.iitasubject | Disease Control |
cg.iitasubject | Cassava |
cg.iitasubject | Pests Of Plants |
cg.accessibilitystatus | Limited Access |
cg.reviewstatus | Peer Review |
local.dspaceid | 107542 |
cg.identifier.doi | https://doi.org/10.1007/s11046-004-8667-z |
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