Now showing items 1-10 of 14
Assessment of genetic variation of selected spiderplant (Cleome gynandra L.) morphotypes from Western Kenya
(Academic Journals, 2009-06)
Effect of common wild crucifer species of Kenya on fitness of two exotic diamondback moth parasitoids, Cotesia plutellae and Diadegma semiclausum
Plutella xylostella is the most abundant and damaging pest of cruciferous crops in Kenya and has gained economic importance over the years. During a survey conducted in the major crucifer areas of Kenya a number of wild ...
Root rot resistance in new cassava varieties introduced to farmers in Nigeria
(Cambridge University Press, 2009-01)
In 2004 and 2005 through field trials in over 2500 locations in several agroecological zones, 40 new cassava varieties were introduced in Nigeria. The trials were managed by scientists, extension workers and farmers. The ...
Transfer and Development of Pasteuria Penetrans.
(The Society of Nematologists, 2007-03)
Pasteuria penetrans isolate P-20 has been attributed as the cause of soil suppressiveness to peanut root-knot nematode in Florida. In this study, P. penetrans was transferred from a suppressive site to a new site and ...
Zeldia spannata sp. n. (Nematoda: Cephalobidae) from the Mojave Desert, California
(Journal of Nematode Morphology and Systematics, 2005)
Zeldia spannata sp. n. is described from the Mojave Desert, California. The new species shares with congeners a single guard process in each primary axil and asymmetrical triangular-shaped lips; it differs from them by the ...
Improving food production using ‘best bet’ soil fertility technologies in the Central highlands of Kenya
(Springer Netherlands, 2007)
Declining crop productivity is a major challenge facing smallholder farmers in central highlands of Kenya. This decline is caused by continuous cultivation of soils without adequate addition of external inputs in form of ...
The International Journal for Microbiologists and Biotechnologists working on Issues Relevant to the Tropics
(Journal of Tropical Microbiology and Biotechnology, 2007)
Aggressiveness of fifteen isolates of Phaeoisariopsis griseola and variations in angular leaf spot symptom development in common bean were studied. The isolates were selected based on their virulence and genetic differences ...
Food Security in Africa: The Challenges of Researchers in the 21st Century
Food production in most of Sub-Saharan Africa (SSA) has not kept pace with the population increase over the past three decades. In many countries, food security remains a serious problem. It contributes both to high rates ...
Impact of an exotic parasitoid on Plutella xylostella (Lepidoptera: Plutellidae) population dynamics, damage and indigenous natural enemies in Kenya
(Cambridge University Press, 2007)
Diadegma semiclausum (Helle´n) (Hymenoptera: lchneumonidae), an exotic diamondback moth parasitoid, was released in two pilot areas (Werugha in Coast Region and Tharuni in Central Province) in Kenya. Fifteen month before ...
Can low release numbers lead to establishment and spread of an exotic parasitoid: The case of the diamondback moth parasitoid, Diadegma semiclausum (Hellén), in East Africa
(Science Direct, 2008-06)
From 2001 onwards, Diadegma semiclausum, an exotic parasitoid of the diamondback moth, was introduced and released in Kenya, Tanzania and Uganda. Contrary to common practice where thousands of parasitoids are released, we ...