Journal Articles: Recent submissions

Now showing items 481-500 of 516

Diversity and Abundance of Wild host Plants of Lepidopteran Stem borers in two Agro-ecological zones of Kenya

Otieno, Nicholas A.; Le Rü, Bruno Pierre; Ong’amo, George O.; Moyal, Pascal; Dupas, Stéphane (International Journal of Biodiversity Science & Management, 2008)

A survey was carried out between 2005 and 2006 in two ecologically different localities, Suam and Mtito Andei, to assess diversity and abundance of wild host plants of lepidopteran stem borers during the cropping and ...
Virulence of the Entomopathogenic Fungi Beauveria Bassiana and Metarhizium Anisopliae to Sweet Potato Weevil Cylas Puncticollis and Effects on Fecundity and Egg Viability

Ondiaka, S.; Maniania, N. K.; Nyamasyo, G.H.N.; Nderitu, J.H. (Association of Applied Biologists, 2008)

The virulence of eight isolates of Metarhizium anisopliae and four isolates of Beauveria bassiana (Ascomycota: Hypocreales) to adult Cylas puncticollis (Coleoptera: Curculionidae) was tested in the laboratory. Insects were ...
Location, acceptance and suitability of lepidopteran stemborers feeding on a cultivated and wild host-plant to the endoparasitoid Cotesia flavipes Cameron (Hymenoptera: Braconidae)

Obonyo, Meshack; Schulthess, Fritz; Gerald, Juma; Wanyama, Onesmus; Le Rü, Bruno; Calatayud, Paul-André (Elsevier, 2008)

Maize fields in Africa are usually surrounded by land occupied by wild plants many of which harbor lepidopteran stemborer species not found on crops. It is not known if the exotic braconid parasitoid Cotesia flavipes, which ...
Distribution of chemo- and mechanoreceptors on the antennae and maxillae of Busseola fusca larvae

Juma, Gerald; Chimtawi, Mathayo; Ahuya, Peter O; Njagi, Peter G. N.; Le Rü, Bruno; Magoma, Gabriel; Silvain, Jean-François; Calatayud, Paul-André (The Netherlands Entomological Society, 2008)

The stem borer Busseola fusca (Fuller) (Lepidoptera: Noctuidae) is a major pest of maize,Zea mays L.,and sorghum,Sorghum bicolor (L.) Moench (both Poaceae), in sub-Saharan Africa. Like in many other lepidopteran insects, ...
Laboratory Investigations on the Potential of Entomopathogenic Fungi for Biocontrol of Helicoverpa armigera (Lepidoptera: Noctuidae) Larvae and Pupae

Nguyen, Nguyen T. H.; Borgemeister, Christian; Poehling, Gisbert Zimmermann (Taylor & Francis, 2008)

The susceptibility of third instar Helicoverpa armigera to seven strains of three entomopathogenic fungal species, i.e. Metarhizium anisopliae, Beauveria bassiana and Paecilomyces fumosoroseus , was tested under laboratory ...
Host–parasitoid community model and its potential application in biological control of cereal stemborers in Kenya

Jiang, Nanqing; Zhou, Goufa; Overholt, William A.; Schulthess, Fritz (The Society of Population Ecology and Springer, 2008)

A two-host–two-parasitoid model was constructed to assess the effects of the introduced larval parasitoid, the braconid Cotesia flavipes, on its primary target host, the invasive crambid Chilo partellus, and on secondary ...
Green Oak Leaf Roller Moth Dynamics: An Application of Discrete time Mathematical Models

Nedorezov, Lev V.; Sadykova, Dinara L. (Elsevier, 2008)

Discrete mathematical model is selected for description of green oak leaf roller (Tortrix viridana L.) population dynamics. Experimental data set from Rubtsov [Rubtsov, V.V., 1992. Models of Oscillation Processes in Forest ...
Evaluation of the Impact of Diachasmimorpha longicaudata on Bactrocera Invadens and Five African Fruit Fly Species

Mohamed, S. A.; Ekesi, Sunday.; Hanna, R. (Blackwell Verlag, Berlin, 2008)

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, ...
Smallholder Access to the Export Market: the case of Vegetables in Kenya

Mithofer, Dagmar; Nang'ole, Eddah; Asfaw, Solomon (The British Library, 2008)

Vegetable export production is a major source of income and contributes to the alleviation of poverty in Kenya. However, emerging....(continue from the attached pdf)
Response of Ground-dwelling Arthropods to a ‘Push–pull’ Habitat Management System: Spiders as an Indicator group

Midega, C. A.O.; Khan, Zeyaur R.; Berg, J. van den; Ogol, C. K. P. O.; Dippenaar-Schoema, A. S. (Blackwell Verlag, Berlin, 2008)

Studies were conducted to assess the numerical response of grounddwelling arthropods to a habitat management system (‘push–pull’) developed to control maize stemborers using spiders (Araneae) as an indicator group. In ...
Abundance and Diversity of Lepidopteran Stemborers and their Parasitoids on Selected wild Grasses in Uganda

Matama-Kauma, Teddy; Schulthess, Fritz; Le Rü, Bruno Pierre; Mueke, Jones; Ogwang, James Apenyo; Omwega, Charles Omambia (Elsevier, 2008)

Surveys were conducted in four agroecological zones in Uganda to catalogue wild host plants of lepidopteran stemborers. Among those sampled, Panicum maximum, Pennisetum purpureum, Pennisetum polystachion and Sorghum ...
Effects of soil application of neem (NeemAzal®-U) on different life stages of Liriomyza sativae (Diptera: Agromyzidae) on tomato in the humid tropics

M.B., Hossain; H.-M., Poehling; G, Thöming; C, Borgemeister (Institute of Plant Protection, Leibniz Universität Hannover, 2008)

NeemAzal®-U, a formulation containing 17% azadirachtin developed for soil treatments, was tested in air conditioned laboratories and net greenhouses in Thailand to control Liriomyza sativae Blanchard (Diptera: Agromyzidae) ...
Role of Entomopathogenic Fungi in the Control of Tetranychus Evansi and Tetranychus Urticae (Acari: Tetranychidae), Pests of Horticultural Crops

Maniania, Nguya K.; Bugeme, David M.; Wekesa, Vitalis W.; Italo, Delalibera Jr.; Knapp, Markus (Springer Science+Business Media, 2008)

The spider mites Tetranychus urticae Koch and Tetranychus evansi Baker and Pritchard are important pests of horticultural crops. They are infected by entomopathogenic fungi naturally or experimentally. Fungal pathogens ...
Effects of Bio-pesticides on Eretmocerus warrae (Hym., Aphelinidae), a Parasitoid of Bemisia Tabaci (Hom., Aleyrodidae)

Kumar, P.; Whitten, M.; Thoeming, G.; Borgemeister, C.; Poehling, H.-M. (Blackwell Verlag, Berlin, 2008)

The sweet potato whitefly Bemisia tabaci (WF) can be controlled by two commercial neem products, NeemAzal-T/S (1% azadirachtin) for foliar application, and NeemAzal-U (17% azadirachtin) for soil application, alongwith two ...
Assessing yield and Efficiency Implications of Relying on Parasitoids for Control of Cereal Stemborers: The Case of Small-scale Maize Farmers in Kenya

Kipkoech, Anderson Kipruto; Mithofer, Dagmar; Yabann, Wilson K.; Maritim, Henry K.; Schulthess, Fritz (Elsevier, 2008)

As part of a region-wide classical biological control (BC) program, the exotic larval parasitoid Cotesia flavipes was released in coastal Kenya in 1993 for the control of the invasive crambid cereal stemborers Chilo ...
Economic Performance of the ‘Push–pull’ Technology for Stemborer and Striga Control in Smallholder Farming Systems in Western Kenya

Khan, Zeyaur R.; Midega, Charles A.O.; Njuguna, Esther M.; Amudavi, David M.; Wanyama, Japhether M.; Pickett, John A. (Elsevier, 2008)

The ‘push–pull’ technology (PPT), developed in Africa, offers effective control of cereal stemborers and Striga weed in maize-based cropping systems. It involves intercropping maize with desmodium, Desmodium uncinatum, ...
Desmodium Species and Associated Biochemical Traits for Controlling Striga species: Present and Future Prospects

Khan, Zeyaur R.; Pickett, John A.; Hassanali, A.; Hooper, A. M.; Midega, Charles A.O. (European Weed Research Society Weed Research, 2008)

We discovered serendipitously a new and highly effective intervention against Striga spp., including Striga hermonthica (African witchweed), in cereals, which involves intercropping with cattle fodder legumes, Desmodium ...
On-farm Evaluation of the ‘Push–Pull’ Technology for the Control of Stemborers and Striga Weed on Maize in Western Kenya

Khan, Zeyaur R.; Midega, Charles A.O.; Amudavi, David M.; Hassanali, Ahmed; Pickett, John A. (Elsevier, 2008)

The ‘push–pull’ technology is a novel pest management strategy developed for control of stemborers and striga weed, Striga hermonthica, in maize-based farming systems in eastern Africa, where maize is intercropped with ...
Chemical Ecology and Conservation Biological Control

Khan, Zeyaur R.; James, David G.; Midega, Charles A.O.; Pickett, John A. (Elsevier, 2008)

Elucidating the chemical ecology of natural enemies, herbivores and host plants is important in the development of effective and successful integrated pest management (IPM) strategies where abundance and distribution of ...
Integrated pest management: the push-pull approach forcontrolling insect pests and weeds of cereals, and its potential for other agricultural systems including animal husbandry

Ahmed, Hassanali; Hans, Herren; Zeyaur, R Khan; John, A Pickett; Christine, M Woodcock (Royal society, 2008)

This paper describes the ‘push–pull’ or ‘stimulo-deterrent diversionary’ strategy in relation to current and potential examples from our own experiences. The push–pull effect is established by exploiting semiochemicals to ...

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