| dc.contributor.author | Hansen, L.S. |
| dc.contributor.author | Skovgard, L. |
| dc.contributor.author | Hell, K. |
| dc.date.accessioned | 2019-12-04T11:36:36Z |
| dc.date.available | 2019-12-04T11:36:36Z |
| dc.date.issued | 2004 |
| dc.identifier.citation | Hansen, L.S., Skovgård, H. & Hell, K. (2004). Life table study of Sitotroga cerealella (Lepidoptera: Gelichiidae), a strain from West Africa. Journal of Economic Entomology, 97(4), 1484-1490. |
| dc.identifier.issn | 0022-0493 |
| dc.identifier.uri | https://hdl.handle.net/20.500.12478/6302 |
| dc.description.abstract | Life table studies for the Angoumois grain moth, Sitotroga cerealella (Olivier), a pest on stored maize, Zea mays L., in West Africa, were conducted as part of the expansion of a mathematical simulation model that has been developed for two pests of stored maize. The effects of four temperatures (20, 25, 30, and 35°C) and two relative humidity levels (44 and 80%) on developmental time, age-specific survivorship and fecundity, sex ratio, and intrinsic rate of natural increase (rm) of S. cerealella were investigated. Sex ratio was close to 1:1 at all temperatures and humidity. Minimum development time occurred close to 32°C and 80% RH for both males and females, and developmental time of females was significantly shorter than that of males. Immature survivorship was highest between 25 and 30°C and 80% RH and lowest at 35°C under both humidity conditions. A similar low level was found at 20°C and 44% RH. The greatest fecundity (124 eggs per female) occurred at 20°C, 80% RH. The maximum rm value was 0.086 d−1 at 30°C and 80% RH, but the growth rate declined dramatically at 35°C. If compared with the few other life table studies conducted on this species on maize in India and North America, some variation among the strains becomes evident. A common conclusion for the current study and previous ones is that optimal population development for S. cerealella occurs at ≈30°C and at high humidity. |
| dc.language.iso | en |
| dc.subject | Sitotroga Cerealella |
| dc.subject | Angoumois Grain Moth |
| dc.subject | Life Tables |
| dc.subject | Maize |
| dc.title | Life table study of Sitotroga cerealella (Lepidoptera: Gelichiidae), a strain from West Africa |
| dc.type | Journal Article |
| cg.contributor.affiliation | Danish Institute of Agricultural Sciences |
| 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 advanced research institute |
| cg.iitasubject | Maize |
| cg.iitasubject | Pests Of Plants |
| cg.iitasubject | Plant Health |
| cg.iitasubject | Disease Control |
| cg.accessibilitystatus | Limited Access |
| cg.reviewstatus | Peer Review |
| local.dspaceid | 107584 |
| cg.identifier.doi | https://doi.org/10.1093/jee/97.4.1484 |
