Abstract: The fall armyworm (FAW), Spodoptera frugiperda (Lepidoptera: Noctuidae), native to the Americas, was confirmed in West and Central Africa in 2016 and reported in almost all countries of sub-Saharan Africa in 2017, becoming thereafter one of the major constraints on the production of maize, the main staple food crop in the region. Cereals depend on silicon (Si)-based defences to fight off herbivores. Both FAW strains, namely rice and corn strains, have been found to be present in Ke...
Abstract: Edible insects are currently promoted worldwide as an alternative animal protein source, but they are mostly still harvested from the wild where they are predisposed to contamination with agrochemicals. This study analysed six species of edible insects (Ruspolia differens, Rhynchophorus phoenicis, Schistocerca gregaria, Oryctes sp, Pachnoda ephippiata and Acanthoplus sp) collected from different habitats and/or reared in the laboratory in Kenya and Uganda for safety from agrochemic...
Abstract: Phosphorus (P) is one of the essential macronutrients for plant growth and development, and it is an integral part of the major organic components, including nucleic acids, proteins and phospholipids. Although total P is abundant in most soils, a large amount of P is not easily absorbed by plants. Inorganic phosphate (Pi) is the plant-available P, which is generally immobile and of low availability in soils. Hence, Pi starvation is a major constraint limiting plant growth and produ...
Abstract: Fall armyworm (FAW)Spodoptera frugiperda(J.E. Smith), damagewas monitored at a regional scale using time series data inWestern and Southern African countries. The study employed thenormalized difference vegetation index (NDVI) computed fromLandsat 8 imagery using the Google Earth Engine (GEE) usingimage composites for the years 2013 to 2020 for the study areas.The index was then reclassified based on the NDVI threshold val-ues into low, sparse, moderate, and dense classes. FAW prev...
Abstract: Worldwide, French beans (Phaseolus vulgarisL.), tomato (Solanum lycopersicumL.), andkales (Brassica oleraceaL.var. acephala) are considered economically important foodcrops. There is a rapid decline in their yield due to severe soil degradation. Thus, highcommercial fertilizer inputs are crucial, though they remain expensive and inaccessibleto resource poor farmers. We investigated the comparative performance of compostedblack soldier fly frass fertilizer (BSFFF), conventionallycom...
Abstract: Plant color is a key feature for estimating parameters of the plant grown under different conditions using remote sensing images. In this case, the variation in plant color should be only due to the influence of the growing conditions and not due to external confounding factors like a light source. Hence, the impact of the light source in plant color should be alleviated using color calibration algorithms. This study aims to develop an efficient, robust, and cutting-edge approach f...
Abstract: The performance of the Bombyx mori Linnaeus bivoltine hybrid, Shaanshi BV-333, was evaluated on six mulberry cultivars of Morus spp. based on economic characters in rearing and mulberry leaf quality. The growth rate and morphological characteristics for all the cultivars were studied using several parameters. Specific characters such as disease resistance, survival percentage, cocoon weight, cocoon shell weight and single cocoon filament length were recorded during the rearing of s...
Abstract: We evaluated the potential role of greenleaf desmodium, Desmodium intortum (Mill.) Urb., in the combined management of Striga hermonthica and cereal stemborers in finger millet (Eleusine coracana (L.) Gaertn.) in western Kenya between 2007 and 2008. Treatments comprised finger millet planted either as monocrop stands or intercropped with D. intortum. S. hermonthica counts were significantly lower in the intercrop than in the monocrop plots. Similarly, multi-season analyses showed t...
Abstract: Climate change is a key emerging threat to the lives and livelihoods of smallholder farmers in Ethiopia. This study examines small-scale farmer adaptation strategies to climate change and climate variability, and the factors affecting adaptation choice inJimma, Southwestern Ethiopia. This research used a ‘bottom-up’ approach, which seeks to capture insights from the farmers. Primary data was collected through a household survey, focus group discussions and key informant intervi...
Abstract: This study sought to examine the collaborative participation approach and technology adoption. The objective of this study was to determine the linkage between socio-economic factors in collaborative participation and technology adoption and diffusion among Trans Nzoia district resource-limited farmers. Collaborative participation involves farmers, researchers, and extension agents in developing and disseminating technology. The study reviewed the push/pull’ technology of control...
Cocoa (Theobroma cacao) contributes significantly to Ghana’s GDP and has made Ghana a recognized leader in the cocoa industry. However, there are myriad problems associated with Ghana’s cocoa bean quality. One such problems stems from farmers paying less attention to the required postharvest activities (fermentation and drying) which contributes significantly to bean quality losses. *is study investigated the effect of the duration of the traditional heap fermentation period and differ...
Under rain-fed conditions, perfumed rice production in Northern Ghana is associated with high paddy cracking during milling. In this study, 4 perfumed rice varieties, 6 staggered planting times, 6 staggered harvesting cycles, and staggered storage duration from harvest to six months of storage were used in a randomized complete block design to identify the best combination of factors that are associated with low cracking in rice production. )e experiment was laid out in a randomized comple...
An experiment was conducted at the University of Education, Winneba, Mampong-Ashanti campus to determine the effect of some cowpea lines as green manure on the growth and yield of carrot in root-knot nematode infested soil. Randomized complete block design with five treatments and four replications was used. Thetreatments were cowpea lines IT97K-570-18; IT97K-566-18; and IT00K-1150 as green manure, N.P.K (15, 15,15) and control. The results showed negative correlation between root-knot nema...
Under rain-fed conditions, perfumed rice production in Northern Ghana is associated with high paddy cracking during milling. In this study, 4 perfumed rice varieties, 6 staggered planting times, 6 staggered harvesting cycles, and staggered storage duration from harvest to six months of storage were used in a randomized complete block design to identify the best combination of factors that are associated with low cracking in rice production. )e experiment was laid out in a randomized complete ...
Decline in yields and frequent failure of major crops in Embu and Kiambu counties, Kenya, is linked to inadequate or unevenly distributed rainfall and poor agronomic practices, among other factors. The main objective of this study was to evaluate the effect of using mulch and hydrogel in production of yellow passion fruit in Embu and Kiambu Counties, Kenya. The study was set up specifically to (i) determine the effect of mulch and hydrogel on soil moisture and nutrients in a yellow pass...