icipe Digital Repository: Recent submissions

Now showing items 761-780 of 1967

Behavioural responses of bean flower thrips (Megalurothrips sjostedti) to vegetative and floral volatiles from different cowpea cultivars.

Diabate, S.; Deletre, E.; Murungi, L. K.; Fiaboe, K. K. M.; Subramanian, S.; Wesonga, J.; Martin, T. (Springer, 2019)

Bean flower thrips (Megalurothrips sjostedti) is a key pest of cowpea (Vigna unguicalata) in Africa. To better understand the interaction of M. sjostedti to cowpea cultivars to improve management efforts, we investigated ...
Effect of crop diversification and mulching on termite damage to maize in western Ethiopia.

Demissie, G.; Mendesil, E.; Diro, D.; Tefera, T. (Elsevier, 2019)

Termites are major biotic factors that contribute to crop damage and yield losses to maize (Zea mays L.) in western Ethiopia. This study evaluated mulching maize stover, intercropping maize with soybean (Glycine max (L.) ...
Short communication: Portia’s capacity to decide whether a detour is necessary.

Cross, F. R.; Jackson, R. R. (The Company of Biologists Ltd, 2019)

Proficiency at planning is known to be part of the exceptionally complex predatory repertoire of Portia, a genus of jumping spiders (Salticidae) that specialize in preying on other spiders. This includes proficiency at ...
First report of Meloidogyne hapla and M. javanica coinfection on Parthenium hysterophorus in Kenya.

Chitambo, O.; Haukeland, S.; Fiaboe, K. K. M; Grundler, F. M.W. (APS, 2019)

Parthenium hysterophorus (Asteraceae) is an annual or short-lived perennial herbaceous noxious weed native to North and South America. Parthenium has spread in Kenya and has become a menace to agriculture. Stunted and ...
Egg-laying decisions based on olfactory cues enhance ofspring ftness in Stomoxys calcitrans L. (Diptera: Muscidae)

Baleba, Steve B. S; Torto, Baldwyn; Masiga, Daniel; Weldon, ChristopherW; Getahun, Merid N (2019)

Selection of oviposition substrate is critical in holometabolous insects. Female stable fies, Stomoxys calcitrans, locate and select vertebrate herbivore dung in which they lay their eggs. However, the preference for ...
Serological evidence of Flavivirus circulation in human populations in Northern Kenya: an assessment of disease risk 2016–2017

Chepkorir, E.; Tchouassi, D. P.; Konongoi, S. L.; Lutomiah, J.; Tigoi, C.; Irura, Z.; Eyase, F.; Venter, M.; Sang, R. (BMC, 2019)

Background: Yellow fever, Dengue, West Nile and Zika viruses are re-emerging mosquito-borne Flaviviruses of public health concern. However, the extent of human exposure to these viruses and associated disease burden in ...
Dim-light vision in jumping spiders (Araneae, Salticidae): identification of prey and rivals.

Cerveira, A. M.; Jackson, R. R.; Nelson, X. J. (The Company of Biologists Ltd, 2019)

Jumping spiders (family Salticidae) are known for their intricate vision-based behavior during encounters with prey and conspecific individuals. This is achieved using eyes specialized for discerning fine detail, but there ...
Description of Eniacomorpha hermetiae Delvare sp. n. (Hymenoptera, Chalcidoidea, Chalcididae) a pupal parasitoid of Hermetia illucens (L.) (Diptera, Stratiomyidae), and a potential threat to mass production of the fly as a feed supplement for domestic animals.

Delvare, G.; Copeland, R. S.; Tanga, C. M. (Zootaxa, 2019)

Eniacomorpha hermetiae Delvare sp. n. (Hymenoptera, Chalcididae, Dirhininae), reared from pupae of black soldier fly (BSF), Hermetia illucens (Linnaeus, 1758) (Diptera, Stratiomyidae), is described and illustrated from ...
Evidence of aggregation–sex pheromone use by longhorned beetles (Coleoptera: Cerambycidae) species native to Africa

Bobadoye, B.O; Torto, B; Fombong, A; Zou, Y; Adlbauer, K; Hanks, L. M; Millar, J. G (Oxford University Press, 2019)

During field bioassays in Kenya of 10 chemicals that are common pheromone components of cerambycid beetles, six species in the subfamily Cerambycinae were significantly attracted to 3-hydroxyhexan-2-one, and one species ...
Theileriosis In mountain bongo repatriated to Kenya: A clinical and molecular investigation

Bishop, R. P; Odongo, D. O; Dolan, T. T; Dolan, R. B; Skilton, R. A; Sayer, P. D (BioOne, 2019)

Mountain bongo (Tragelaphus euryceros isaaci) from Kenya were exported to zoological institutions in North America and Europe in the 1970s and 1980s. In the following 20–30 years bongo numbers declined in Kenya and the ...
Ample glycosylation in membrane and cell envelope proteins may explain the phenotypic diversity and virulence in the Mycobacterium tuberculosis complex

Birhanu, A.G.; Yimer, S.A.; Kalayou, S.; Riaz, T.; Zegeye, E.D; Holm-Hansen, C.; Norheim, G.; Aseffa, A.; Abebe, M.; Tanjum, T. (Nature, 2019)

Multiple regulatory mechanisms including post-translational modifcations (PTMs) confer complexity to the simpler genomes and proteomes of Mycobacterium tuberculosis (Mtb). PTMs such as glycosylation play a signifcant role ...
Bio-efficacy and physical integrity of piperonylbutoxide coated combination net (PermaNet® 3.0) against pyrethroid resistant population of Anopheles gambiae sl and Culex quinquefasciatus mosquitoes in Ethiopia.

Birhanu, A.; Asale, A.; Yewhalaw, D. (BMC, 2019)

Background: PermaNet® 3.0 is a deltamethrin-treated combination long-lasting insecticidal net with the addition of synergist piperonylbutoxide (PBO) on its roof section. It is designed to overcome the challenge posed by ...
Different ways to cut a cake: Comparing expert-based and statistical typologies to target sustainable intensification technologies, A case-study in southern Ethiopia.

Berre, D.; Baudron, F.; Kassie, M.; Craufurd, P.; Lopez-Ridaura, S. (Cambridge University Press, 2019)

Understanding farm diversity is essential to delineate recommendation domains for new technologies, but diversity is a subjective concept, and can be described differently depending on the way it is perceived. Historically, ...
Endophytic Beauveria bassiana in foliar-treated Citrus limon plants acting as a growth suppressor to three successive generations of Diaphorina citri Kuwayama (Hemiptera: Liviidae).

Bamisile, B. S.; Dash, C. K.; Akutse, K. S.; Qasim, M.; Ramos Aguila, L. C.; Wang, F.; Keppanan, R.; Wang, L. (MDPI, 2019)

Entomopathogenic fungi are commonly applied as inundative sprays to protect plants against insect pests. Their artificial establishment as fungal endophytes to provide other benefits to the host plants aside mere protection ...
Larval experience of stable fly, Stomoxys calcitrans Linneaus, 1758 (Diptera: Muscidae) does not influence oviposition preference in gravid females.

Baleba, S.B.S; Torto, B; Masiga, D; Weldon, C. W; Getahun, M (The Royal Entomological Society, 2019)

1. Hopkins' host selection principle (HHSP) proposes that, in holometabolous insects, gravid females prefer to oviposit on their developmental substrate. This hypothesis is widely explored in phytophagous insects, but few ...
Egg-laying decisions based on olfactory cues enhance offspring fitness in Stomoxys calcitrans L. (Diptera: Muscidae).

Baleba, S.B.S; Torto, B.; Masiga, D.; Weldon, C. W.; Getahun, M. (Nature, 2019)

Selection of oviposition substrate is critical in holometabolous insects. Female stable fies, Stomoxys calcitrans, locate and select vertebrate herbivore dung in which they lay their eggs. However, the preference for ...
Effect of larval density and substrate quality on the wing geometry of Stomoxys calcitrans, Linneaus 1758 (Diptera: Muscidae).

Baleba, S.B.S; Masiga, D; Torto, B; Weldon, C. W; Getahun, M. N (BMC, 2019)

Background: In insects, oviposition decisions may lead to egg deposition in substrates with diferent larval density and nutritional levels. Individuals developing in such substrates may present plasticity in their phenotype. ...
Lemon Terpenes Influence Behavior of the African Citrus Triozid Trioza erytreae (Hemiptera: Triozidae)

Antwi-Agyakwa, A. K.; Fombong, A. T.; Deletre, E.; Ekesi, Sunday.; Yusuf, A. A.; Pirk, C.; Torto, B. (Springer, 2019)

The African citrus triozid, Trioza erytreae Del Guercio (Hemiptera: Triozidae) is one of the primary vectors of the bacterium Candidatus Liberibacter spp. which causes citrus greening, a disease of global economic importance ...
Ovicidal effects of entomopathogenic fungal isolates on the invasive fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae).

Akutse, K. S.; Kimemia, J. W.; Ekesi, Sunday.; Khamis, F. M.; Ombura, O. I; Subramanian, S. (Blackwell Verlag GmbH, 2019)

Maize is a major staple food for over 300 million people in sub‐Saharan Africa. Sustainable productivity of this primary crop has been recently threatened by Fall armyworm (FAW), Spodoptera frugiperda invasion. Due to lack ...
First report of field population of Trioza erytreae carrying the huanglongbing-associated pathogen, ‘Candidatus Liberibacter asiaticus’, in Ethiopia.

Ajene, I.J; Khamis, F.; Mohamed, S.; Rasowo, B.; Ombura, F.L.; Pietersen, G.; van Asch, B.; Ekesi, Sunday. (APS Pubications, 2019)

African citrus greening is a destructive disease of citrus that has been reported in South Africa since the 1920s. The disease is associated with ‘Candidatus Liberibacter africanus’ (Laf) and is transmitted by Trioza ...

Now showing items 761-780 of 1967

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