Show simple item record

dc.contributor.authorKpindou, O. D.
dc.contributor.authorDjegui, D.A.
dc.contributor.authorGlitho, I. A.
dc.contributor.authorTamo, M.
dc.date.accessioned2019-12-04T11:10:37Z
dc.date.available2019-12-04T11:10:37Z
dc.date.issued2011
dc.identifier.citationKpindou, 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.issn1742-7584
dc.identifier.urihttps://hdl.handle.net/20.500.12478/2214
dc.description.abstractA 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.sponsorshipGovernment of the Netherlands
dc.language.isoen
dc.subjectHelicoverpa Armigera
dc.subjectMetarhizium Anisopliae
dc.subjectBiopesticides
dc.subjectUltralow Volume Spraying
dc.titleDose transfer of an oilbased formulation of Metarhizium anisopliae (Hypocreales: Clavicipitaceae) sprays to cotton bollworm in an arena trial
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversité de Lomé
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryBenin
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectPests Of Plants
cg.journalInternational Journal of Tropical Insect Science
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid90945


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record