ABSTRACT Insecticide bio as 3 ays were carried out on JD. thoracica (a) adults by topical application of 1 pi drop of toxicant on their nota; and Ob) eggs by dipping them into insecticidal solutions for 30 min. LC50 values obtained from the tests on the adults were: Gamma BHC, 26.4Ctog/l; Pirimiphos methyl (PP511) 28.00 mg/l; Serin, 67.00 mg/l and Malathion, 580.00 mg/l. Values obtained from the eggs tests were: PP511, 1.30 mg/l; Sevin, 5.30 mg/l; gamma BHC, 18.30 mg/l andMalathion, 83.00 mg/...
ABSTRACT This study investigated the concentration of heavy metals and vegetation around the Korle Lagoon Reclamation site in Accra (Ghana). The dispersion of heavy metals such as Pb, Hg, Cd, As, Zn, Sn, Ni, Cu and Cr within the soil profile from a depth of 0 – 60cm (at 20cm intervals) were assessed. A total of ninety (90) soil samples were taken from the ewaste zone (EW), central gardens zone (GZ), recreational zone (KD), reclaimed zone (RZ) and estuary zone (ES) and eighteen (18...
ABSTRACT This aim of the study was to conduct an environmental assessment of three irrigation systems in the Kassena-Nankanna East Municipality and determine microbiological quality of tomato crops grown on farms irrigated from study schemes and water used for irrigation. A structured questionnaire and direct observation was used to gather background information from a total of 120 farmers from the study area in order to identify environmental conditions that may be contributing to the contam...
ABSTRACT The use of materials that contain radioactive substances has gained grounds in Ghana due to numerous benefits derived from them. These radioactive materials can be found in the areas of medicine, agriculture and industries such as mining. Though there are strict measures to ensure such material do not find its way into the environment, improper management of the waste poses a threat to the environment. To be able to understand the impact the radioactive material has on the environmen...
ABSTRACT Ten clones and 10 hybrids each of four cocoa populations; Nanays (Na), IMCs, Trinidad introduction (Ts) and Parinaris (Pa), were screened for attractiveness and resistance/tolerance to the capsid, Sahlbergella singularis (Hagl.). Two screening methods; a laboratory ‘microtest’ and an insectary test were used to determine the attractiveness of the genotypes to capsids. In addition, seedlings exposed to capsids in the insectary were observed under ‘ semi-field’ conditions to as...
ABSTRACT A field study was conducted on the Assessment of Ground Water Quality around Abandoned Quarry Ponds near Lower Benue Trough, Nigeria. Water samples were collected using 1liter amber glass bottles each fitted with a screw cap and lined with foil from the four abandoned quarry pits measured fifty meters (50m) (165ft) deep. These were labeled ABP1, ABP2, ABP3, ABP4, while the wells were labeled HDW (hand dug wells) measured eighty meters (80m) (264ft) deep and BH (borehole), measured t...
ABSTRACT Mycobacterium ulcerans disease (Buruli ulcer) is increasing worldwide but there is currently no effective chemotherapeutic treatment. Prevention and control has also not been possible because the mode of transmission remains illusive and at best speculative. Recent investigation however points to the possible involvement of aquatic bugs belonging to the familily Naucoridae in the transmission process. In the laboratory, infected Naucorid species have been shown to transmit the bacter...
ABSTRACT Due to high poverty levels coupled with high patients to doctor ratio in Ghana, most people especially the urban poor and rural dwellers resort to herbal medicines which are quite cheap for their primary healthcare. Developing measures to maximize the medicinal potentials of indigenous plants will reduce the number of lives lost through diseases. A major setback is that most herbal products sold in public places lack scientific evidence for safety, quality and efficacy. As the safety...
ABSTRACT Toxicity and protectant potential of isoeugenol, limonene and essential oil of Hyptis spicigera against Sitophilus zeamais (Motsch.), Callosobruchus maculatus F. and Tribolium castaneum (Herbst.) and the effect of the oils on germination of maize and cowpea were investigated in the laboratory using contact toxicity, grain treatment and repellency assays. The effects of acetone extracts from leaf and seed of Hyptis spicigera on oviposition and adult emergence of C. maculatus were also...
Abstract A year-long investigation has been carried out on atmospheric particulate matter (APM). Elemental composition,mass concentration, sources contributions and their fingerprints were determined in APM samples collected, in Agbogbloshie scrap market, between May 2010 and April 2011. PM2.5 and PM102.5 size fractions of APM were collected 24-hourly on 47 mm diameter nuclepore filters of pore sizes 0.4 µm and 8 µm respectively, using the Gent sampler. Gravimetric analyses were carried out...
ABSTRACT This study investigated the level of awareness and knowledge of climate change, factors influencing risk perception pertaining to climate change and variability, and factors influencing the adoption of adaptation strategies in three communities around the MuniPomadze Ramsar site. Primary data were collected through a questionnaire survey, FGDs and in-depth interviews. Descriptive statistics such as frequencies and percentages were employed to assess the level of knowledge and awarene...
ABSTRACT Cowpea [Vigna ungriculata (L.) Walp] is a leguminous plant and is one of the staple crops much cultivated in Benin and neighboring countries and in Africa as a whole. Cowpea production is hindered by many biotic and abiotic factors, with the flower bud Thrips, Megalurothrips sjostedti (Trybom) being the most damaging pest at flowering stage causing yield losses of 20 to 80%. Control of flower bud thrips in the field is difficult due to its cryptic behaviour. Thus, the combination of ...
ABSTRACT The purpose of this study was to determine and compare the prevalence of obesity among private and public basic school pupils in the Asante Akim central municipality using a cross sectional survey. A total of 200 children from private and public schools were selected using the simple random sampling technique. Data were collected using a structured questionnaire, a food frequency questionnaire, the Physical Activity Questionnaire for Children (PAQ-C) and anthropometry. The data obtai...
ABSTRACT This research was an attempt to investigate the effects of agricultural activities of rural women on the soil, water bodies and vegetation in Sota, in the Greater Accra Region. The aim of the research was to collect and analyze data on the effect of agricultural practices of female fanners in Sota on the soil, water bodies and vegetation; their level of awareness of major environmental issues, factors which influence behavioural changes of the female farmer with regards to the susten...
ABSTRACT A study to determine the species range of parasitoids of Sesamia calamistis on maize in some selected maize farms in Accra was conducted on small holder farms at the University of Ghana. Legon, and its environs. Collections of stembororers were made in pre-selected fields and farms. These were then reared on freshly cut pieces of maize stem in 500-ml storage bottles in the laboratory, and observed for the emergence of parasitoids or stemborers. Emerging parasitoids were identified an...