Ajayi, O and Ajiboye, T O and Abubakar, B (1998) Yield loss caused by Coryna hermanniae Fabricius (Coleoptera: Meloidae) on pearl millet in Nigeria. International Sorghum and Millets Newsletter, 39. pp. 145-147.
![[img]](http://oar.icrisat.org/style/images/fileicons/application_pdf.png)
|
PDF
Download (71kB) | Preview |
Abstract
In 1997, field trials were conducted in Nigeria to determine pearl millet grain yield losses caused by C. hermanniae under free-choice and no-choice conditions. Head cages were used to artifically infest panicles with 5, 10, 15, 20, 25 or 30 C. hermanniae adults per panicle for 3 weeks from the beginning of flowering. Panicle weight at maturity declined from 43 g/25 cm panicle length in the control by 14.9% with 5 beetles per panicle to a decrease of 63% with 30 beetles per panicle. Grain yield decreased from 30 g/25 cm panicle length by 75% with 30 beetles per panicle. Yield loss on naturally infested panicles was calculated to be 19%. These results support the hypothesis that C. hermanniae is a potentially serious pest of pearl millet in West Africa.
| Item Type: | Article |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Subjects: | Mandate crops > Millets |
| Depositing User: | Library ICRISAT |
| Date Deposited: | 17 Sep 2011 04:32 |
| Last Modified: | 14 Sep 2013 11:45 |
| URI: | http://oar.icrisat.org/id/eprint/1685 |
| Official URL: | |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | UNSPECIFIED |
| Links: |
Actions (login required)
 |
View Item |
Altmetric
Altmetric