The cocoa mirid (Hemiptera: Miridae) problem: Evidence to support new recommendations on the timing of insecticide application on cocoa in Ghana

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dc.contributor.authorAdu-Acheampong, R.
dc.contributor.authorJiggins, J.
dc.contributor.authorVan Huis, A.
dc.contributor.authorCudjoe, A.R.
dc.contributor.authorJohnson, V.
dc.contributor.authorSakyi-Dawson, O.
dc.contributor.authorOfori-Frimpong, K.
dc.contributor.authorOsei-Fosu, P.
dc.contributor.authorTei-Quartey, E.
dc.contributor.authorJonfia-Essien, W.
dc.contributor.authorOwusu-Manu, M.
dc.contributor.authorNana Karikari Addo, M.S.
dc.contributor.authorAfari-Mintah, C.
dc.contributor.authorAmuzu, M.
dc.contributor.authorNyarko Eku-X, N.
dc.contributor.authorQuarshie, E.T.N.
dc.date.accessioned2018-11-02T16:07:32Z
dc.date.available2018-11-02T16:07:32Z
dc.date.issued2014
dc.description.abstractThe government's cocoa spraying gangs in Ghana treat about two million hectares of the crop against black pod disease and mirids, the key insect pests of cocoa in West Africa, each August through to December, based on recommendations issued in the 1950s. A few cocoa farmers use additional pesticides. We studied the temporal distribution of two important mirid species, Distantiella theobroma (Dist.) and Sahlbergella singularis Hagl., in 1991, 1999, 2003 and 2012 to determine the appropriate timing for the application of control measures in current farming systems. There was a significant correlation between mirid abundance and pod availability on trees, as well as the number of basal shoots and the cocoa variety grown. Mirid populations peaked between January and April and from September to October. Surveys (interviews and focus group discussions involving over 300 farmers in 33 cocoa-growing districts) on pesticide use, sources of recommendations, and perceived successes and failures of current cocoa pest treatments suggested that the 1950 recommendations on the timing of insecticide application need revising. Copyright © ICIPE 2014.en_US
dc.identifier.other10.1017/S1742758413000441
dc.identifier.urihttp://ugspace.ug.edu.gh/handle/123456789/25210
dc.language.isoenen_US
dc.publisherInternational Journal of Tropical Insect Scienceen_US
dc.subjectblack pod diseaseen_US
dc.subjectcocoaen_US
dc.subjectGhanaen_US
dc.subjectmirid populationen_US
dc.subjecttiming of insecticide applicationsen_US
dc.titleThe cocoa mirid (Hemiptera: Miridae) problem: Evidence to support new recommendations on the timing of insecticide application on cocoa in Ghanaen_US
dc.typeArticleen_US

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