Publications by authors named "John W Kimenju"
Cabbage and Onion production in sub-Saharan Africa face numerous pest constraints that needs to be overcome to feed the rapidly growing population. This study aimed to establish the occurrence, incidence, and severity of soil-dwelling pests of cabbage and onions, and current management practices in five Counties of Kenya. Our findings revealed that most farmers grew hybrid vegetables on a small scale, which were highly dominated by various pest species (Delia platura, Maladera sp.
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- Coffee production in Kenya is declining despite rising global demand, with plant-parasitic nematodes posing a significant yet often overlooked threat to coffee plantations.
- Two biocontrol agents were tested over two years in seven Arabica coffee field trials, showing a decline in nematode populations in treated trees and an improvement in soil health and microbial diversity.
- While the treatments showed promise, stresses in the soils likely delayed their effectiveness, suggesting that longer studies might provide clearer benefits for managing nematode threats sustainably.