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Onzo, A.Sabelis, M.W.Hanna, R.[Single versus multiple enemies and the impact on biological control of spider mites in cassava fields in WestAfrica]Single versus multiple enemies and the impact on biological control of spider mites in cassava fields in WestAfrica

Taro leaf blight disease has recently been reported in Cameroon to cause between 50 and 100% yields loss of taro in most of the agro-ecological crop growing regions. This has led to a significant reduction in disease-free planting materials, edible crop and increased. The Meristem culture techniq...


Manju, B.E.Mbong, A.G.Fokunang, N.C.Tembe-Fokunang, E.A.Hanna, R.[Application of in-vitro micropropagation technique for sustainable production of four local taro cultivars [Colocasia esculenta (L.) Schott] in Cameroon]Application of in-vitro micropropagation technique for sustainable production of four local taro cultivars [Colocasia esculenta (L.) Schott] in Cameroon

The issue of introducing single or multiple natural enemy species for classical biological control has been an area of intense inquiry by ecologists and biological control practitioners. This is particularly relevant to classical biological control of cassava green mite Mononychellus tanajoa (Bon...


Onzo, A.Hanna, R.Janssen, A.Sabelis, M.[Interactions between two neotropical phytoseiid predators and consequences for biological control of a shared prey]Interactions between two neotropical phytoseiid predators and consequences for biological control of a shared prey

In July 2011, banana and plantain that displayed stunting and leaf symptoms typical of banana bunchy top disease were observed to be widespread in Dangbo Commune, Ouémé Department, Benin. To identify the cause of the disease, a roving survey was conducted in December 2011 in nine locations in Avr...


Lokossou, B.Gnanvossou, D.Ayodeji, O.Akplogan, F.Safiore, A.Migan, D.Pefoura, A.Hanna, R.Kumar, P.L.[Occurrence of Banana bunchy top virus in banana and plantain (Musa sp.) in Benin]Occurrence of Banana bunchy top virus in banana and plantain (Musa sp.) in Benin

Introduction: Taro leaf blight disease cause by Phytophtora colocasiae has become an economic disease in Cocoyam growing regions of Cameroon. Aims: To screen for resistance 10 improved and 4 local cultivars of taro against taro leaf blight disease. Study Design: A randomized complete block design...


Fokunang, C.N.Mbong, G.Manju, E.Tembe-Fokunang, E.A.Hanna, R.[Screen house and field resistance of taro cultivars to taro leaf blight disease (Phytophtora colocasiae)]Screen house and field resistance of taro cultivars to taro leaf blight disease (Phytophtora colocasiae)

This article analysed farmers' perceptions of the effects of coconut mite in their livelihood and assessed crop diversification as a copping strategy for reduced coconut production. A socio-economic model of farmers' decisions on intercropping as an indicator for overall crop diversity was develo...


Oleke, J.M.Isinika, A.Manyong, Victor M.Hanna, R.Sabelis, M.[Farmers perception of coconut mite damage and crop diversification alternatives in the coastal belt of Tanzania]Farmers perception of coconut mite damage and crop diversification alternatives in the coastal belt of Tanzania

In tropical dry seasons, survival of small arthropods such as predatory mites is often negatively affected by low relative humidity (RH). For species that do not diapause or migrate to refuges, the ability of the habitat to mitigate climatic conditions becomes crucial. ...


Zundel, C.Nagel, P.Hanna, R.Korner, F.Scheidegger, Urs C.[Environment and hostplant genotype effects on the seasonal dynamics of a predatory mite on cassava in subhumid tropical Africa]Environment and hostplant genotype effects on the seasonal dynamics of a predatory mite on cassava in subhumid tropical Africa

Diachasmimorpha longicaudata (Ashmead), a solitary koinobiont larval–prepupal endoparasitoid of fruit flies, was introduced into Kenya for testing and final release against the recently discovered invasive species, Bactrocera invadens Drew, Tsuruta and White in Africa. Laboratory experiments were...


Mohamed, S.A.Ekesi, S.Hanna, R.[Evaluation of the impact of Diachasmimorpha longicaudata on Bactrocera invadens and five African fruit fly species]Evaluation of the impact of Diachasmimorpha longicaudata on Bactrocera invadens and five African fruit fly species

Neoseiulus baraki Athias-Henriot (Phytoseiidae) is one of the few predators associated with the coconut mite Aceria guerreronis Keifer (Eriophyidae), the most damaging pest of coconut fruits in the Americas, Africa and more recently in Oman, Sri Lanka and parts of India. As Brazil is presently co...


Negloh, K.Hanna, R.Schausberger, P.[Comparative demography and diet breadth of Brazilian and African populations of the predatory mite Neoseiulus baraki, a candidate for biological control of coconut mite]Comparative demography and diet breadth of Brazilian and African populations of the predatory mite Neoseiulus baraki, a candidate for biological control of coconut mite

Aceria guerreronis Keifer pode causar danos severos em coqueiro em vários países ao redor do mundo. Raros estudos têm sido conduzidos para determinar os ácaros predadores associados com A. guerreronis no Brasil. O objetivo deste estudo foi avaliar a prevalência de A. guerreronis e dos predadores ...


Reis, A.C.Gondim, M.G.C.Moraes, G.J.Hanna, R.Schausberger, P.Lawson-Balagbo, L.E.Barros, R.[Population dynamics of Aceria guerreronis Keifer (Acari: Eriophyidae) and associated predators on coconut fruits in Northeastern Brazil]Population dynamics of Aceria guerreronis Keifer (Acari: Eriophyidae) and associated predators on coconut fruits in Northeastern Brazil

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