A5105407069- Agricultural pest management studies
- Legume Nitrogen Fixing Symbiosis
- Agronomic Practices and Intercropping Systems
- Insect Pest Control Strategies
- Plant Parasitism and Resistance
- Insect-Plant Interactions and Control
- Allelopathy and phytotoxic interactions
- Soil erosion and sediment transport
- Rangeland Management and Livestock Ecology
- Plant Micronutrient Interactions and Effects
- Genetic and Environmental Crop Studies
- Soil Carbon and Nitrogen Dynamics
- Banana Cultivation and Research
- Insect and Pesticide Research
- Ecology and Vegetation Dynamics Studies
- Heavy metals in environment
- Plant and animal studies
- African Botany and Ecology Studies
- Plant pathogens and resistance mechanisms
- Ethnobotanical and Medicinal Plants Studies
- Nematode management and characterization studies
- Genetics and Plant Breeding
- Plant tissue culture and regeneration
- Soybean genetics and cultivation
- Insect behavior and control techniques
Nelson Mandela African Institution of Science and Technology
2016-2025
International Institute of Tropical Agriculture
2024
KU Leuven
2024
African Institute of Science and Technology
2018-2020
Ministry of Agriculture, Food Security and Cooperatives
2019
University of Benin
2016
Cape Peninsula University of Technology
2006-2008
Tanzania Wildlife Research Institute
2006
In the fight against arthropod crop pests using plant secondary metabolites, most research has focussed on identification of bioactive molecules. Several hundred candidate species and compounds are now known to have pesticidal properties a range pest species. Despite this growing body research, few natural products commercialized for management whilst on-farm use existing botanically-based pesticides remains small, but growing, component protection practice. Uptake is at least partly...
Vermicompost contains plant nutrients including N, P, K, Ca, Mg, S, Fe, Mn, Zn, Cu and B, the uptake of which has a positive effect on nutrition, photosynthesis, chlorophyll content leaves improves nutrient different components (roots, shoots fruits). The high percentage humic acids in vermicompost contributes to health, as it promotes synthesis phenolic compounds such anthocyanins flavonoids may improve quality act deterrent pests diseases. Key words: Phenolic acid,...
Sustainable methods to control insect pests that affect crop yield have become a great challenge mainly smallholder farmers. Beneficial insects in agricultural fields play an important role natural pest and pollination. The use of synthetic botanical pesticides has detrimental effects both enemies pollinators fields. the survival range life cycle stages, reductions reproductive capacity, changes suitability hosts for parasitising or predation, reduced emergence parasitoids from sprayed host...
Plants with pesticidal properties have been investigated for decades as alternatives to synthetics, but most progress has shown in the laboratory. Consequently, research on plants is failing address gaps our knowledge that constrain their uptake. Some of these are evaluation efficacy under field conditions, economic viability and impact beneficial organisms. Extracts made from four abundant weed species found northern Tanzania, Tithonia diversifolia, Tephrosia vogelii, Vernonia amygdalina...
Increased soil erosion is one of the main drivers land degradation in East Africa's agricultural and pastoral landscapes. This wicked problem rooted historic disruptions to co-adapted agro-pastoral systems. Introduction growth policies by centralised governance resulted temporal spatial scale mismatches with complex dynamic African environment, which subsequently contributed exhaustion, declining fertility increased erosion. Coercive use, privatisation, sedentarisation, exclusion...
The worldwide increase in population continues to threaten the sustainability of agricultural systems since output must be optimized meet global rise food demand. Sub-Saharan Africa (SSA) is among regions with a fast-growing but decreasing crop productivity. Pests and diseases, as well inadequate nitrogen (N) levels soils, are some biggest restrictions production SSA. N one most important plant-limiting elements its deficit usually remedied by using nitrogenous fertilizers. However,...
Production and consumption of vegetable crops has seen a sharp increase in the recent past owing to an increasing recognition their nutraceutical benefits. In tandem, there been unwarranted application agrochemicals such as insecticides enhance productivity quality, at cost human health, fundamental environmental ecosystem functions services. This study was conducted evaluate efficacy neem gliricidia botanical extracts managing harmful insect pest populations leaf mustard. Our results report...
Phenolics are low molecular compounds ubiquitous in all tissues of higher plants with great significance plant development. Our understanding some phenolic the last few decades has greatly improved. However, their biological, ecological and agronomical rhizosphere most symbiotic legumes is much less clear. Further these biomolecules will increase our knowledge contribution soil water conservation, weed management, mineral element nutrition, impact as signal molecule certain relationships,...
Implementation of socially acceptable and environmentally desirable solutions to soil erosion challenges is often limited by (1) fundamental gaps between the evidence bases different disciplines (2) an implementation gap science-based recommendations, policy makers practitioners. We present integrated, interdisciplinary approach support co-design land management tailored needs specific communities places in degraded pastoral East African Rift System. In a northern Tanzanian case study site,...
Intercropping with maize (Zea mays L.) and common bean (Phaseolus vulgaris is one of the widely used practices producing food crops on smallholder farms in Sub-Saharan Africa (SSA). However, knowledge options toward intensification available order to optimize systems productivity using intercrops generally lacking. Therefore, this study evaluated effects intercropping, cropping seasons, different varieties maize-common based intercrop through 5 seasons from 2015 2017. Experimental site...
Biomonitoring of pesticides exposure has currently become a matter great public concern due to the potential health effects pesticides. This study assessed levels acetylcholinesterase (AChE) inhibition and associated in uncontrolled smallholder farming systems rural Tanzania. A cross-sectional was conducted 90 exposed farmers 61 nonexposed controls from horticultural zones. structured questionnaire administered, capillary blood sample 10 μl used measure AChE activity using an Erythrocyte...
Soil bacteria1 called rhizobia are gram-negative capable to colonize the soil immediately surrounding roots under influence of plant “rhizosphere” and reduce atmospheric nitrogen into form available plants through fixation process. Nitrogen is most limiting supplied nutrient plants, determinant growth. Legumes differ with because they have access from both mineral symbiotic sources. Small-scale farmers who major legume producers in Africa rarely apply fertilizers during production. Hence,...
Field margin and non-crop vegetation in agricultural systems are potential ecosystem services providers because they offer semi-natural habitats for both below above ground animal groups such as soil organisms, small mammals, birds arthropods that service supplying units. They considered a target area enhancing farm biodiversity.To explore the multiple benefits of these to identify research trends knowledge gaps globally, review was carried out following Preferred Reporting Items Systematic...
Weeds and insect pests are among the serious constraints in common bean production most rural communities. A survey of 169 smallholder farmers was conducted two bean-growing districts northern Tanzania. The aim to assess farmers’ knowledge, perceptions, current management practices challenges order develop sustainable weed pest strategies. results revealed that 83% perceived as major constraint production, while 73% reported weeds main drawback. Insect mainly achieved through use synthetic...
The most common destructive insect pests affecting cabbages in African smallholder farmers include Plutella xylostella, Helula undalis, Pieris brassicae, Brevycoryne Trichoplusia ni and Myzus persicae. Those infest at different stages of growth, causing huge damage resulting into yield losses. use cultural synthetic pesticides to control minimize infestations. practices like crop rotation, weeding handpicking are used the invasion cabbage pests. However, those not sufficiently enough...
This study was carried out to investigate the risks of simultaneous exposure pesticide residues and bacteria contaminants in locally produced fresh vegetables Tanzania. A total 613 samples were analyzed for residues, which 250 also bacterial contamination. Overall, 47.5% had 74.2% exceeded Maximum Residue Levels (MRLs). Organophosphorus (95.2%), organochlorines (24.0%), pyrethroids (17.3%), carbamates (9.2%) dominated. MRL values mostly tomatoes, onions, watermelons, cucumbers, Chinese...
East Africa has the potential to boost its urban food production through adoption of soilless farming techniques. The case study assessed benefits and drawbacks allied with hydroponic vegetable among peri‑urban farms in Northern Tanzania Central Uganda. Snowball sampling was used identify 150 farms/farmers farmers' groups recommendations from agricultural organizations Uganda Tanzania. Based on complexity distinctiveness this system, only 51 individuals engaging took part responding...
The build-up of heavy metals (HM) in agricultural soils accelerates the HM uptake by plants, which could potentially affect food quality and safety. Here we studied status bioaccumulation from to plant parts (roots, stem, grains) Usangu agro-ecosystem-Tanzania. In total 68 soil samples 42 rice six irrigation schemes were studied. concentrations cadmium-Cd, chromium-Cr, copper-Cu, lead-Pb, zinc-Zn, nickel-Ni, iron-Fe determined estimate accumulation, distribution, bioconcentration. Total...
Habitat condition is a vital ecological attribute in wildlife conservation and management protected areas, including the Burunge areas Tanzania. Traditional techniques, satellite remote sensing ground-based techniques used to assess habitat condition, have limitations terms of costs low resolution platforms. The Normalized Difference Vegetation Index (NDVI) Green NDVI (GNDVI) potential for assessing e.g., forage quantity quality, vegetation cover degradation, soil erosion salinization, fire,...