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The red locust (Nomadacris septemfasciata Serville) is one of the most devastating migratory pests of crops in several African countries south of the equator. It originates from small areas characterised by a mosaic of tall and short grass…
Soil nitrite (NO2-) and nitrate (NO3-) along the soil profile can be used as indicators of nitrogen loss by leaching. Preliminary studies have shown that excess usage of fertiliser is common amongst farmers who were aiming to increase crop…
Mango (Mangifera indica) is a tropical fruit adapted to a wide range of agro-ecological conditions. In Kenya, mango fruits are produced across various agro-ecological zones (AEZs); from sub-humid to semi-arid. The diverse production condit…
Sweet sorghums (Sorghum bicolor L. Moench) are sorghum varieties that accumulate high levels of sucrose in the parenchyma juicy stems. Sweet sorghum (SS) is a multifunctional crop. It that can be cultivated for simultaneous production of g…
Conventional cultivation in Western Kenya and Eastern Uganda over the years has resulted into decline in soil quality and food crop production. Studying soil biodiversity under Conservation Agriculture production systems (CAPS) will help u…
Fusarium head blight is a disease of small grain cereals that reduces yield and causes mycotoxin contamination. The role of agronomic practices on the occurrence of wheat agronomic practices was studied. In the experiment, a survey to dete…
Passionfruit viral pathogens limit passionfruit production and are non-persistently transmitted by aphid vectors, the diseases can reduce orchard life span to only a year resulting to 100% yield loss. 50-100% loss due to biotic stresses ha…
African indigenous vegetables form an integral part of the Kenyan diets, among the most commonly consumed being the African nightshade. These vegetables contain important phenolics that have medicinal values and good health attributes. The…
An 8 x 8 diallel cross mating design with the parents and F1s excluding the reciprocals was used to estimate gene action and combining ability analysis for yield and some yield components in sesame (Sesamum indicum). These genotypes were e…
Rust caused by the fungi Uromyces appendiculatus is considered as one of the most variable pathogens documented world-wide. In Uganda, rust has been identified as an emerging common bean disease and this has contributed to its being given …
Methanol extracts of Lion’s ear, Leonotis nepetifolia L. (LN) and African basil, Ocimum gratissimum L. (OG), were evaluated for their toxic and ovicidal effects against the female adult two-spotted spider mite, Tetranychus urticae Koch. La…
A field survey was carried out in Narok County, Kenya, at hard dough growth stage (GS 65- 69) during the 2013 cropping season and sampling done in 51 wheat farms in different agroecological zones. Samples of soil and crop residues were col…
The potential of crude plant extracts as antimicrobial agents has been demonstrated both in animal and plant health. Extracts with potential for control of plant pathogens such as Colletotrichum lindemuthianum (causal agent for bean anthro…
This research established aphid vectors and alternate hosts of Passiflora chlorotic mottle virus in Uganda. Aphids and host plants were collected from farmers’ fields in major passion fruit growing districts in Uganda. Transmission tests w…
Despite the fact that there is high usage of agrochemicals and use of urban waste water for irrigation, the concentration of potentially toxic metals in urban and peri-urban agriculture (UPA) farms has not been widely investigated in Botsw…
Low yields in rice (Oryza sativa) are attributed by many factors including diseases which represent one of the main constraints. The Brown spot disease (caused by Helminthosporium oryzae) in most rice growing areas cause’s considerable los…
Sunflower contributes about 40% of total national cooking oil requirement, ranking as one of the most important cooking oil with very high nutritional value in Tanzania. However, its production per unit area ranges between 800 to 1100 kg/h…
Urban farming practitioners face challenges like lack of quality irrigation water, poorly decomposed manure, diverse inputs of unknown sources, unhealthy farm environment and abject poverty. All these contribute to production of unsafe foo…
Tomato (Lycopersicon esculentum) has a great socio-economic importance in Mozambique, since it is one of the sources of income for many families. However, its continuous production throughout the year provides conditions for the overwinter…
Production of snap beans (French beans, Phaseolus vulgaris L.) in Kenya is severely constrained by diseases. Use of fungicides increases cost of production, reduces profitability and competitiveness of snap bean in domestic and export mark…
Mango (Mangifera indica) fruit production in Kenya is seasonal with peak and off seasons – one of the contributing factors to postharvest losses. Off-season flower induction is a strategy that can be used to address mango seasonality. Mani…
Mandates of universities in east, central and southern Africa have considerably changed from their traditional teaching and research roles, to greater active involvement in the development agenda of their countries, a phenomenon referred t…
Red-billed (Quelea quelea) is one of the most damaging pests of rice in Mozambique. For its control, smallholder farmers rely on different frightening techniques to scare birds from their crops. Apart from providing a temporary relief, thi…
Although runner bean (Phaseolus coccineus L.), also known as butter bean, is grown in high altitudes of eastern Africa where common bean (Phaseolus vulgaris L) is adapted, its productivity is poor because no improved short-day varieties ar…
Rice is an important food crop in Kenya’s drive to attain food security. However, its productivity remains low against an overall increase in national demand due to overdependence on rice monoculture leading to decline in soil fertility re…
