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Onzo, A.Hanna, R.Zannou, I.Sabelis, M.W.Yaninek, John S.[Dynamics of refuge use: diurnal vertical migration of predatory and herbivorous mites within cassava plants]Dynamics of refuge use: diurnal vertical migration of predatory and herbivorous mites within cassava plants

Cassava green mite, Mononychellus tanajoa (Bondar) has been a major pest of cassava since its accidental introduction in Africa. Studies conducted recently on its biological control in the major cassava growing areas in Kenya demonstrate definite establishment of Typhlodromalus aripo in Kenya. Th...


Kariuki, C.W.Hanna, R.Toko, M.Ngari, B.M.[The spread and persistence of exotic phytoseiid, typhlodromahs aripo de leon (acari: phytoseiidae) and its effect on cassava green mite in Kenya]The spread and persistence of exotic phytoseiid, typhlodromahs aripo de leon (acari: phytoseiidae) and its effect on cassava green mite in Kenya

Two surveys were conducted in Tanzania in May- June 2003 and June-August 2004 to determine the incidence and severity of several cassava arthropod pests including cassava green mite, cassava mealybug, spiralling whitefly, Bemisia spp., cassava scale, red mite, Zonocerus elegans, and several speci...


Gnanvossou, D.Hanna, R.Pallangyo, B.Toko, M.Nsami, E.Mfugale, O.[Distribution and abundance of cassava pests in Tanzania with a note on the spiralling whitefly]Distribution and abundance of cassava pests in Tanzania with a note on the spiralling whitefly

The tiny size of eriophyoid mites is a key feature regarding their status as herbivorous pests. Many eriophyoid species are highly host specific and live in concealed sites (refuges) on their hosts, which are difficult to access by natural enemies. We explored the spatial refuge used by one of th...


Lawson-Balagbo, L.M.Gondim, M.G.C.Moraes, G.J. deHanna, R.Schausberger, P.[Refuge use by the coconut mite Aceria guerreronis: fine scale distribution and association with other mites under the perianth]Refuge use by the coconut mite Aceria guerreronis: fine scale distribution and association with other mites under the perianth

Two Brazilian isolates and one Benin (indigenous) isolate of Neozygites floridana were released against the cassava green mite, Mononychellus tanajoa , in January 1999 in the Adjohoun district, Ouémé administrative region, Republic of Benin. Post-release monitoring conducted 8, 14, 22 and 36 week...


Hountondji, F.C.C.Lomer, C.Hanna, R.Cherry, A.Dara, S.K.[Field Evaluation of Brazilian isolates of Neozygites foridana (Entomophthorales: Neozygitaceae) for the microbial control of cassava green mite in Benin, West Africa]Field Evaluation of Brazilian isolates of Neozygites foridana (Entomophthorales: Neozygitaceae) for the microbial control of cassava green mite in Benin, West Africa

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