| dc.contributor.author | Kpindou, O. D. |
| dc.contributor.author | Djegui, D.A. |
| dc.contributor.author | Glitho, I. A. |
| dc.contributor.author | Tamo, M. |
| dc.date.accessioned | 2019-12-04T11:10:37Z |
| dc.date.available | 2019-12-04T11:10:37Z |
| dc.date.issued | 2011 |
| dc.identifier.citation | Kpindou, O. D., Djegui, D. A., Glitho, I. A. & Tamo, M. (2011). Dose transfer of an oil-based formulation of Metarhizium anisopliae (Hypocreales: Clavicipitaceae) sprays to cotton bollworm in an arena trial. International Journal of Tropical Insect Science, 31(4), 262-268. |
| dc.identifier.issn | 1742-7584 |
| dc.identifier.uri | https://hdl.handle.net/20.500.12478/2214 |
| dc.description.abstract | A cotton field was used to set up an arena trial for investigating the dose transfer of oil-based ultra-low-volume sprays of Metarhizium anisopliae (Metchnikoff) Sorokin to the cotton bollworm Helicoverpa armigera (Hübner). Two doses of conidia (75 and 50 g/ha, being 3.75 × 1012 and 2.5 × 1012 conidia/ha, respectively) formulated in 2 litres (70:30, kerosene–peanut oil) were applied using a Berthoud ‘Micro Ulva’ to three groups of larvae of cotton bollworms positioned in three rows downwind of a single spray line. Both the distribution of the droplets and the effect of direct contact with spray droplets were quantified. The mean number of droplets decreased from 416 ( ± 60) droplets per cm2 (line 1; 0.4 m) to 45 ( ± 36) droplets per cm2 (line 3; 5 m). To achieve 50% mortality, >10 and >13 days were necessary for 75 and 50 g/ha, respectively. From day 15, the difference in mortality rates was significant between the two treatments. At line 3 (5 m), at 12 days after application, the mortality rate reached 52% for 75 g/ha and 47% for 50 g/ha. The results are discussed in view of optimizing the application of the biopesticides. |
| dc.description.sponsorship | Government of the Netherlands |
| dc.language.iso | en |
| dc.subject | Helicoverpa Armigera |
| dc.subject | Metarhizium Anisopliae |
| dc.subject | Biopesticides |
| dc.subject | Ultralow Volume Spraying |
| dc.title | Dose transfer of an oilbased formulation of Metarhizium anisopliae (Hypocreales: Clavicipitaceae) sprays to cotton bollworm in an arena trial |
| dc.type | Journal Article |
| dc.description.version | Peer Review |
| cg.contributor.affiliation | International Institute of Tropical Agriculture |
| cg.contributor.affiliation | Université de Lomé |
| cg.coverage.region | Africa |
| cg.coverage.region | West Africa |
| cg.coverage.country | Benin |
| cg.isijournal | ISI Journal |
| cg.authorship.types | CGIAR and developing country institute |
| cg.iitasubject | Pests Of Plants |
| cg.journal | International Journal of Tropical Insect Science |
| cg.howpublished | Formally Published |
| cg.accessibilitystatus | Limited Access |
| local.dspaceid | 90945 |
