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Johnson Nyangeri

Publications (4)

Assessing the Incidences of Late Blight Disease on Irish Potato Varieties in Kisii County, Kenya

Micah Ongoro Mariita, Johnson Nyangeri & Jacqueline Kubochi Makatiani · Annual Research & Review in Biology · 2016

Background: Late Blight Disease, caused by the fungal pathogen, Phytophthora infestans, is a major constraint of Irish potato production in Kenya. The disease can destroy a crop, causing up to 100% yield loss. Small scale holder farmers in Kisii County continuously grow Irish pot...

Open access Research Article 10.9734/ARRB/2016/23617

Effect of Host Resistance on Foliar Late Blight Severity, Disease Development and Progress on Selected Irish Potato Varieties in Kenya

Micah Ongoro Mariita, Johnson Nyangeri & Jacqueline Kubochi Makatiani · Annual Research & Review in Biology · 2016

Background: Late Blight Disease, caused by the fungal pathogen, Phytophthora infestans, is a major constraint of Irish potato production in Kenya. The disease can destroy a crop, causing up to 100% yield loss. Small scale holder farmers in Kisii County continuously grow Irish pot...

Open access Research Article 10.9734/ARRB/2016/23616

Effect of Artificial Shading on Severity of Coffee Berry Disease in Kiambu County, Kenya

Ruth Kerubo Kebati, Johnson Nyangeri, Chrispine O. Omondi & Jacqueline Makatiani Kubochi · Annual Research & Review in Biology · 2016

Coffee Berry Disease (CBD), caused by the fungus Colletotrichum kahawae, is a major constraint that hinders Arabica coffee production in Kenya. The disease causes up to 80% coffee losses thus affecting export earnings and food security in Kenya. Colletotricum kahawae is spread by...

Open access Research Article 10.9734/ARRB/2016/23326

Influence of Selected Factors on the Choice of Agriculture Subject among Secondary School Students in Kisii and Nyamira Counties

Elizabeth Makori, Samson Maobe & Johnson Nyangeri · Asian Journal of Agricultural Extension, Economics & Sociology · 2019

The purpose of the study was to determine the influence of selected factors on the choice of agriculture subject among secondary school students in Kisii and Nyamira Counties. With the objective of determining the influence of teachers on the choice of agriculture subject among s...

Open access Research Article 10.9734/ajaees/2019/v31i330135