Effect of temperature on the survival and infectivity of Pseudotheraptus devastans vector
| dc.creator | Fokunang, C.N. | |
| dc.creator | Dixon, A. | |
| dc.creator | Ikotun, T. | |
| dc.date | 2004-10 | |
| dc.date | 2019-08-21T14:12:57Z | |
| dc.date | 2019-08-21T14:12:57Z | |
| dc.date.accessioned | 2026-06-27T16:04:24Z | |
| dc.description | 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.identifier | https://hdl.handle.net/10568/103325 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/121718 | |
| dc.language | en | |
| dc.publisher | Springer | |
| dc.rights | Limited Access | |
| dc.source | 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.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 |