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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
Yaninek, S.Hanna, R.[Cassava green mite in Africa - a unique example of successful classical biological control of a mite pest on a continental scale]Cassava green mite in Africa - a unique example of successful classical biological control of a mite pest on a continental scale

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

The role of infochemicals in mediating interactions between herbivores and their foraging natural enemies, mainly predators and parasitoids, is well established, but very little is known about infochemical use in interactions between herbivores and their sit-and-wait pathogens. This paper reviews...


Hountondji, F.C.C.Sabelis, M.Hanna, R.[Role of infochemicals in the interaction between cassava green mites and its fungal pathogen Neozygites tanajoae]Role of infochemicals in the interaction between cassava green mites and its fungal pathogen Neozygites tanajoae

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

The need to evaluate non-target effects of classical biological control of arthropod pests has received considerable attention in recent years. We determined with repeated field surveys the changes in abundance and distribution of the phytoseiid mite fauna in cassava fields resulting from the int...


Zannou, I.D.Hanna, R.Agboton, B.Moraes, G.J. deKreiter, S.Phiri, G.Jone, A.[Native phytoseiid mites as indicators of non-target eVects of the introduction of Typhlodromalus aripo for the biological control of cassava green mite in Africa]Native phytoseiid mites as indicators of non-target eVects of the introduction of Typhlodromalus aripo for the biological control of cassava green mite in Africa

Typhlodromallus aripo, a predatory phytoseiid species of the cassava green mite Mononychellus tanajoa was introduced to the Democratic Republic of Congo in 1998. It established easily and spread quickly to other areas from the sites of first release. But its dispersal was constrained by intense c...


Tata-Hangy, K.Hanna, R.Toko, M.Solo, M.[Effect of cassava leaf harvesting on a cassava green mite predator in the Democratic Republic of Congo]Effect of cassava leaf harvesting on a cassava green mite predator in the Democratic Republic of Congo

To improve biocontrol of the cassava green mite, Mononychellus tanajoa, a series of screenhouse experiments were conducted on cassava to determine the effects of single and combined releases of the predatory mite Typhlodromalus aripo and the entomopathogenic fungus Neozygites tanajoae on the supp...


Onzo, A.Bello, I.Hanna, R.[Effects of the entomopathogenic fungus Neozygites tanajoae and the predatory mite Typhlodromalus aripo on cassava green mite densities: screenhouse experiments]Effects of the entomopathogenic fungus Neozygites tanajoae and the predatory mite Typhlodromalus aripo on cassava green mite densities: screenhouse experiments

Interspecific predation and cannibalism are common types of interaction in phytoseiid predator guilds, but the extent and nature of these interactions have not been determined yet in phytoseiid guilds composed of African native and neotropical exotic phytoseiid predators found in cassava habitat ...


Zannou, I.D.Hanna, R.Moraes , G.J. deKreiter, S.[Cannibalism and interspecific predation in a phytoseiid predator guild from cassava fields in Africa: evidence from the laboratory]Cannibalism and interspecific predation in a phytoseiid predator guild from cassava fields in Africa: evidence from the laboratory

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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