Kamil Ayo FASASI
@uniosun.edu.ng
Senior Lecturer, Department of Zoology, Faculty of Basic and Applied Sciences.
Osun State Uninersity
RESEARCH INTERESTS
Environmental and Economic Entomology, Apiculture and Conservation, Pests and Diseases of Honeybees.
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
K. A. Fasasi, O. F. Awodiran, D. J. Ayeni, O. I. Awoniyi, and S. H. Awojide
Sri Lanka Journals Online
Purpose: Honey are produced by honeybees which are expected to be free from contaminants or pollutants in the environment. But different degrees of anthropogenic activities in regions where apiaries domiciles have raised issues of primary health importance because of the increasing contents of pesticide residues, polycyclic aromatic hydrocarbons (PAHs), and other related hydrocarbon compounds in honey. Osun State is an agrarian state where agricultural herbicides and insecticides are used. The study focused on organophosphate and organochlorine compounds and PAHs. Research Method: Honey samples sourced from selected zones in Osun State, were screened for organophosphate, organochlorine compounds, PAHs as well as other related hydrocarbon compounds using Gas Chromatography-Mass Spectrometry (GC-MS). Finding: There were no traces of highlighted pesticide residues except for PAHs and other related compounds. Ninety-two PAHs and other related hydrocarbon compounds were identified. The number of PAHs and related compounds per sample ranged from 9 to 35. While Cyclohexane, Decodane and Naphthalene were the most common with higher concentrations in all the samples. The Mn±S.D values of Cyclohexane, Naphthalene and Decodane obtained were 0.2976±0.1253µgkg-1, 0.471±0.119µgkg-1, and 12.516±3.120µgkg-1 respectively. Other PAHs and other related hydrocarbon compounds identified had insignificant concentrations. Originality/value: The study recommends that bee farmers should locate their apiaries 3km to 5km away from regions where there are serious hazardous anthropogenic activities including industrial areas. Also, there is need for strong understanding between the bee farmers and crop farmers on tolerable uses of agricultural pesticides, and herbicides on field crops during the flower bloom period where there are no options. Lastly, harvested honey should undergo quality assurance and control for safety reasons. All packaged honey for retail should bear labels including the compositions after quality analysis.
Lateef. O. Busari, Haleemah O. Raheem, Zarat O. Iwalewa, Kamilu A. Fasasi, and Monsuru A. Adeleke
Public Library of Science (PLoS)
The study evaluates the resistance and susceptibility of adult female Anopheles gambiae s. l., Aedes aegypti and Culex quinquefasciatus mosquitoes sourced within Osogbo metropolis, Osun State, Nigeria to four groups of insecticides [Permethrin, Deltamethrin, Pirimiphos-methyl and DDT (Dichlorodiphenyltrichloroethane)] and the distribution of their larval habitat within the metropolis. Mosquito larvae of the three genera were collected during the wet season and reared to adult stage in the laboratory. Emerged adult female mosquitoes were exposed to insecticide impregnated papers of the four insecticide groups for 60mins using WHO kits to determine the knock down rate (kdr). Thereafter, they were transferred into holding tubes and left for 24hrs to assess their resistance and susceptibility according to the WHO protocol. Four types of larval habitats were identified (tires, ground pools, gutters and plastic containers). Anopheles gambiae s. l. showed the highest resistance to Permethrin (49%) (p = 0.04, p<0.05) while the highest susceptibility was recorded with Pirimiphos-methyl (69%) with the lowest against Permethrin (16%) (P = 0.002; p<0.05). The highest resistance of A. aegypti was against OC-Control (45%) (p = 0.031; p<0.05). Permethrin had the highest susceptibility (60%) against A. aegypti while OC-control had the lowest (11%) (p = 0.005; p< 0.05). Culex quinquefasciatus had a lower resistance to OC-control (38%) as compared with Aedes aegypti (45%). However, it was least susceptible to Pirimiphos-methyl (52%) and DDT (17%) respectively (p = 0.013; p<0.05). The susceptibility of A. gambiae s. l. and C. quinquefasciatus to Pirimiphos-methyl and A. aegypti to Permethrin is an indication of the possibility of success if employed for vector control of A. gambiae s. l., C. quinquefasciatus and A. aegypti respectively. This could be through their inclusion as active ingredients in insecticide treated nets (ITNs) and indoor residual spray (IRS) with a view to abating malaria and other life-threatening mosquito-borne diseases constituting global public health scourge.
L. O. Busari, M. Adeleke, O. Surakat, A. Akindele, K. Fasasi and O. Ojurongbe
Background and objectives This study reports knowledge of residents of Alabameta community, Osun State, Nigeria on the bioecology and socio-economic burden of black flies and onchocerciasis. Methods Using structured questionnaires and Focus Group Discussion (FGD), a total of 150 community respondents participated in the study. Results The knowledge of the residents on the existence of black flies in the community was significant (p<0.05) as all the 150 respondents confirmed the presence of black flies with the local name ‘Amukuru’ i.e causing itching. However, their lack of knowledge of the flies breeding site (104) (69%), prevention (134) (89%), cause (132) (88%), and treatment (133) (89%) of onchocerciasis was profound. Majority 147(98%) of the respondents reported that flies bite more in the wet season as against dry season 3(2%) and have a higher affinity (124) (82%) for biting the leg than any other part of the body. A larger percentage (89%) of the respondents are unaware of any medication for the treatment of onchocerciasis while 11% are aware. There had been no sensitization on onchocerciasis according to 89% of the respondents. Conclusion Due to lack of resident’s knowledge on black flies bioecology which may continuously expose them to the bite of the flies and ultimately infection, it is paramount that the Osun State government and the NTD implementing partner map out new public health education strategies during routine Mass Administration of Medicines with Ivermectin with a view to preventing onchocerciasis infection as well as man-vector contact.
M. Rufai, A. Wahab, K. Fasasi, Quadri Olusegun Adeshina and Mary Tolulope Awotidebe
Fasasi Ka
Nigerian honey competes globally in the world honey market. The physicochemical parameters of honey samples sourced from colonies of Apis mellifera adansonii were studied with the effect of storage-time over a period of two years. This was done by analyzing and evaluating eleven common physicochemical parameters including colour, moisture content, ash content, sugar content, acidity, pH value, hydroxymethylfurfural, diastase activity, nitrogen content, insoluble matter and viscosity of honey samples with the effect of storage-time on the physicochemical parameters using Association of Official Analytical Chemists methods. Most of the honey samples showed proper maturity considering the moisture content (17.9 +/- 2.0%). The total acidity (21.5 +/- 5.6 meq kg(-1)) indicated absence of undesirable fermentation after harvest and extraction. The Mean +/- SD pH value (3.9 +/- 0.2) of the honey samples was within acceptable standards of Economic European Community (EEC) and Codex. The ash content (0.4 +/- 0.2%) (0.2-0.6%) was slightly higher than 0-0.50% of EEC and Codex standards. The fructose and glucose mean values were 38.9 +/- 0.8% and 28.3 +/- 2.4%, respectively. The Mean +/- S.D value of hydroxymethylfurfural content (8.5 +/- 2.7 mg kg(-1)) was low, while the Mean +/- SD value of diastase activity was high depicting freshness. The evaluated physicochemical parameters of two years old honey samples exhibited no significant deviation (p > 0.05) from that of the fresh samples. This study showed that natural honey if properly harvested, extracted hygienically, preserved and stored can maintain their stability relatively for at least two years at room temperature without undue interference.