icipe Digital Repository: Recent submissions

Now showing items 861-880 of 1967

Soil‐dwelling insect pests of tree crops in Sub‐Saharan Africa, problems and management strategies—A review

Ambele, F.C.; Bisseleua Daghela, H. B.; Babalola, O. O.; Ekesi, Sunday. (Wiley Online Library, 2018)

This review aims to draw the attention of researchers, ecologists and farmers to the threats of soil-dwelling insect pests on important tree crops in sub-Saharan Africa, with a special focus on termites. It synthesizes ...
ICIPE quarterly e-bulletin Vol. 9 issue No. 3-4

International Centre of Insect Physiology and Ecology (Icipe Science Press, 2019)
Size and shape analysis of Trioza erytreae Del Guercio (Hemiptera: Triozidae), vector of citrus huanglongbing disease

Aidoo, O. F.; Tanga, C. M.; Paris, T. M.; Allan, S. A; Mohamed, S. A.; Khamis, F. M.; Sétamou, M.; Borgemeister, C.; Ekesi, Sunday. (Wiley Online Library, 2019)

BACKGROUND: The African citrus triozid (ACT) Trioza erytreae Del Guercio (Hemiptera: Triozidae) is one of the most devastating pests of citrus with a well-known role as a vector of the phloem-limited bacteria (Candidatus ...
Study on the Biology and Some Ecological Aspects of Chilo partellus (Swinhoe) (Lepidoptera: Crambidae) in Relation to its Altitudinal Expansion

Abamo, Amanuel Tamiru (Addis Ababa University, 2005)

Survey was carried out during 2004 main cropping season to investigate the abundance and distribution of stemborers, with emphasis on C. partellus in central and eastern Ethiopia. Three species of stemborers, Chilo partellus ...
Acceptability and suitability of Spodoptera exigua (Hübner) for Cotesia icipe Fernandez‐Triana & Fiaboe on amaranth

Agbodzavu, M. K.; Gikungu, M.; Lagat, Z. O.; Rwomushana, I.; Ekesi, Sunday.; Fiaboe, K. K. M. (Wiley Online Library, 2018)

The beet armyworm Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae) is a polyphagous insect that is distributed worldwide and was recently reported as an important pest on African indigenous vegetables. Cotesia icipe ...
Performance of the newly identified endoparasitoid Cotesia icipe Fernandez‐Triana & Fiaboe on Spodoptera littoralis (Boisduval)

Agbodzavu, M. K.; Lagat, Z. O.; Gikungu, M.; Rwomushana, I.; Ekesi, Sunday.; Fiaboe, K. K. M. (Wiley Online Library, 2018)

Cotesia icipe Fernandez‐Triana & Fiaboe is a solitary koinobiont larval endoparasitoid, recently discovered in Kenya and new to science, that parasitizes select lepidopteran herbivores of amaranth. We investigated its host ...
Relationship between virulence and repellency of Metarhizium anisopliae and Beauveria bassiana towards Macrotermes michaelseni and chemical identification of the mediating signals

Mburu, David M. (Jomo Kenyatta University of Agriculture and Technology, 2009)

It is not well understood how termites survive in hemiedaphic habitats with diverse array of potentially infective fungi. In the present study, it was initially found that Macrotermes michaelseni detected a virulent isolate ...
Bacterial diversity in the Interstinal Tracts of the Fungus-Cultivating Termites Macrotermes michaelseni (Sjostedt) and Odontotermes somaliensis (Sjostedt

Mackenzi, Lucy M. (Jomo Kenyatta University of Agriculture and Technology, 2005)

Termites are an important group of insects that harbor a complex community of gut microbes, which contribute to digestion, termite nutrition and gas (methane, carbon dioxide and hydrogen) emission. The abundance of ...
Oviposition and Feeding Allelochemicals for Chilo partellus from Sorghum and Maize Cultivars; Bioassay, Isolation and Characterization

Bogita, Richard K. (University of Nairobi, 1994)

A study was carried out to isolate and identify the chemicals from sorghum and maize that determine the oviposition and feeding responses, respectively, of the moth and larvae of Chilo partellus a serious pest of these ...
Interaction between Pheromons and Hormones in Phase Dynamics of the Desert gregaria (Forskal)

Tawfik, Amer I. (Assiut University, 1995)
Studies on the nymphal aggregation pheromone of Malagasy Migratory Locust, Locusta migratoria capito (Saussure, 1884) and its effects on adult maturation

Razafindranaiv, Victor (Jomo Kenyatta University of Agriculture and Technology, 2010)

The Malagasy migratory locust, Locusta migratoria capito (Saussure, 1884), is the most destructive pest in the Malagasy agricultural production system. The recent plague between 1996 and 2000 during which economic losses ...
Changes in Lipophorin Structure and Function during Phase Transition in Schistocerca gregaria (Forskal) (Orthoptera: Acrididae)

Ogoyi, Dorington O. (University of Nairobi, 1993)

The desert locust, Schistocerca gregaria is a major agricultural pest especially in the gregarious phase when it can cover an infestation area of approximate!~ 20% of the total land mass. The solitary phase on the other ...
Odour detection in the desert locust, Schistocerca gregaria: antennal structure and function

Ochieng', Samuel A. (University of Lund, 1997)

Insects are among the most successful organisms in the animal Kingdom. Their capacity to survive and reproduce depends greatly on their ability to identify and respond selectively to cues from a heterogeneous environment. ...
Identification between Schistocerca gregaria (Forskal) and Locust Migratorioides (Riech &Farmaire) in Relation to Phase Polymorphism

Niassy, Abdoulaye (Oklahoma State University, 1996)

Cross pheromone-mediating releaser effects between the desert locust, Schistocerca gregaria gregaria, and the African migratory locust, Locusta migratoria migrator_ioides, were investigated in olfactometer bioassays. ...
Morphometric and Molecular Comparisons of Two isolated Populaions of the Desert Locust, Schistocerca gregaria (Orthoptera: Arcididae)

Mohammed, Abdel F. (Ain Shams University, 1996)

In Africa, there are two well known subspecies of the desert locust: the sahara subspecies, Schistocerca gregaria gregaria (Forskal) and the southern west subspecies, Schistocerca gregaria flaviventris (Burmeister) . The ...
Reproductive Behaviour of the Solitarious Desert Locust Schistocerca Gregaria (Forskal) in Relation to Semiochemical Attributes of Desert Plants

Ely, Sidi O. (University of Khartoum, 2003)

Sexual attraction in the desert locust was investigated by monitoring sexual behaviour of solitary-reared, gregarizing and gregarious locusts. Gregarizing males were significantly more attracted to volatiles from solitarious ...
Biochemical Studies on the Accessory Reproductive Gland Secretions of the Male Desert Locust , Schistocera gragaria Forskal

Dhadialla, Tarlochan S. (University of Nairobi, 1977)

The two initial objectives of this research project were (1) to obtain a detailed chemical description of secretions from the accessory reproductive glands CARGs) of the male desert locust, . Schistocerca gregaria Forskal, ...
Studies on some Factors that Influence Phase Dynamics of the Desert Locust, Schistocera gragaria (Forskal) (Orthoptera: Acrididae)

Deng, Arop Leek (University of Khartoum, 1995)

The rate and the degree of reversible change in the phase characteristics of the desert locust, Schistocerca gregaria (Forskal), on crowding and uncrowding have been compared by two new parameters, aggregation pheromone ...
Diurnal and Seasonal activity of Unfed Adults of Rhipicephalus Appendiculatus, Neumann 1901 in Relation to some Factors in the Micro-Environment

Punyua, Daniel K. (University of Nairobi, 1978)

A study was conducted on the activity response of unfed adults of Rhipicephalus appendiculatus to some of the environmental changes during the three main seasons here in East Africa. Ticks of two different ages were ...
A Model of Parasitism by Trichogramma Species near Mwanzai Schulten & Feijen (Hymenoptera: Trichogrammatidae) on the Stalk Borer, Chilo Patellus Swinhoe (Lepidoptera: Pyralidae) on Sorghum

Ngi-Song, Adele Josee (University of Yaounde, 1990)

Effects of the sequence of parasitoid release and three ' . ecological factors, i.P. parasito1d densities, pest densities, and climatic conditions, on the rate of Chilo partellus (Swinhoe) egg parasitism by Trichogramma ...

Now showing items 861-880 of 1967

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