Simon Idoko Okweche

University of Calabar | unical · Department of Forestry and Wildlife Management

A two-year field study investigated the effects of varying rates of fertilizer NPK 20.10.10 and timing of application on the vegetative growth and biomass yield of T. vogelii (Fish bean) at the study area in 2019 and 2020 cropping seasons. Treatments consisted of three rates of N.P.K 20.10.10. (0, 100 and 200 kg/ha) and two fertilizer application p...

Proper handling and retail dispensing of agropesticides by middle agents/trader have been an issue of concern in the society today. The research been reported was conducted to assess different level of pesticide traders’ understanding and adoption of pesticide safety standard practices in selected markets in Ivo Council Area of Ebonyi State Nigeria...

Brachytrupes membranaceus (Drury) is one of the edible crickets consumed in Nigeria as a source of nutrient proteins by majorly children, specifically during the wet seasons of the year. This study was conducted to compare the nutrient content of cricket and other animal protein sources. Majority of Nigerians are in dire need of alternative food so...

Proper handling and retail dispensing of agropesticides by middle agents/trader have been an issue of concern in the society today. The research been reported was conducted to assess different level of pesticide traders' understanding and adoption of pesticide safety standard practices in selected markets in Ivo Council Area of Ebonyi State Nigeria...

Termites provide ecosystem services and have been used as a biological index of soil quality and fertility because of their key role in soil nutrient cycling that enables trees associated with their activities to remain evergreen throughout the year. To gain further insight into this situation, we compared the soil physico-chemical properties of te...

The efficacy of Jatropha curcas in the management of wood termites, (Macrotermes bellicosus) was carried out in the Teaching and Research Farm of the Department of Forestry and Wildlife Resources Management. University of Calabar. The experiment consisted of 5 levels of J. curcas oil (0, 0.5, 1.0, 1.5 and 2.0) and a corresponding quantity in powder...

Studies were conducted in the Crop Science laboratory, University of Calabar to evaluate the insecticidal actions of essential oils (EOs) of Xylopia aethiopica, Dennetia tripetala, Pysostigma venenosum and Senna hirsuta in the management of Callosobruchus subinnotatus. The EOs were extracted using soxhlet apparatus with n-Hexane as the solvent. Fou...

Vigna unquiculata (cowpea) is among crops susceptible to Choanephora cucurbitarium, the occurrence of this infection contributes significantly to reduction in quality and yield of the crop. This study investigated effect of using leaf extracts of Anthocleistra vogelli and Leuceana leucocephylla (60g/200ml) as plant-based pesticides in vivo to contr...

This chapter еxplorеd thе crucial function of mammals as bioеcological indicators, highlighting thеir importancе in еvaluating еnvironmеntal wеll-bеing and thеir usеfulnеss in undеrstanding thе еffеcts of pollution and climatе changе. Mammals, duе to thеir widе rangе of еcological nichеs and hеightеnеd sеnsitivity, play a crucial rolе as important...

Brachytrupes membranaceus (Drury) is one of the edible crickets consumed in Nigeria as a source of nutrient proteins by majorly children, specifically during the wet seasons of the year. This study was conducted to compare the nutrient content of cricket and other animal protein sources. Majority of Nigerians are in dire need of alternative food so...

A field experiment was conducted at the Federal College of Forestry, Ibadan SouthWestern Nigeria, to evaluate the efficacy of ethanol plant extracts of neem (Azadirachta indica) seed and Cypermethrin synthetic pesticide (Cyperforce) as pest control strategies of the Adansonia digitata seedlings in the field. The experimental design used was Factori...

A field experiment was conducted at the Federal College of Forestry, Ibadan SouthWestern Nigeria, to evaluate the efficacy of ethanol plant extracts of neem (Azadirachta indica) seed and Cypermethrin synthetic pesticide (Cyperforce) as pest control strategies of the Adansonia digitata seedlings in the field. The experimental design used was Factori...

Changes in climate, land use, and other environmental factors have been and will continue to be potential threats to global biodiversity and the distribution of species. The severe danger that climate change poses to biodiversity at the local, regional, and global scale as well as species’ responses has been widely studied especially in developed c...

Food preference of Brachytrupes membranaceus and proximate analysis of the nymphal and adult stages of B. membranaceus was carried out in the Arboretum and laboratory of the University of Calabar. The nymphs of B. membranaceus were sourced from the wild. Materials used as feeds included Anarcadium occidentale leaf (AOL), Arachis hypogea leaves and...

Studies were conducted in Crop Science laboratory, University of Calabar to evaluate insecticidal activities of crude extracts (CE) of Xylopia aethiopica, Dennettia tripetala, Physostigma venenosum, Senna hirsuta and primiphos-methyl in the management of Sitophillus zeamais. The CEs were separately extracted with 50 mL distilled N- Hexane for 24 h...

Background Coptotermes sjostedti Holmgren (Isoptera:Rhinotermitidae) is one of the major termite species found infesting woods and other plant materials in Africa. Bioassays were carried out at the Arboretum of the Department of Forestry and Wildlife Resources Management, University of Calabar, Nigeria to investigate the effect of oils from the ker...

Apart from food, other important needs in the care of human bodies are cosmetics and drugs. For long the latter two are obtained from chemical formulations and phytochemicals (commonly used in Ethnomedicine), use of bioactive compounds from insects (i.e. “ento medicine” and “ento cosmetics”) is a recent development in research, even though the bioa...

Laboratory evaluation of the efficacy of three pesticidal plants: Senna alata Linnaeus., Hura crepitans Linnaeus., and Calophyllum inophyllum Linnaeus for the protection of Cola nitida (Schott & Endl.) against cola weevil (Balanogastris kolae Desbr.) was carried out in the Department of Forestry and Wildlife Resources Management, University of Cala...

Smallholder cassava farmers in Okwusonwu-atanga in Ikpo-Obibi have since more than 40 years ago been suffering from crop attack by the white curl grub (Phyllophaga spp., Coleoptera: Scarabaeidae) pests. Several attempts have been made in the past by the farmers to find solution to the pest-invasion, but none was discovered yet. This study aimed at...

Termites are important ecosystem engineers. Yet they are often difficult to identify due to the lack of reliable species-specific morphological traits for many species, which hampers ecological research. Recently, termitologists working with West African termites (West African Termite Taxonomy Initiative) convened for a workshop with the aim of beg...

Biological assays were carried out to determine the effectiveness of powders of three locally available plants, Dennettia tripetala (G. Backer), Xylopia aethiopica (A. Rich) and Aframomum melegueta (K. Schum), for the control of Cylas puncticollis a sweet potato weevil. Powders of the leaves and fruits of each plant were separately applied at conce...

Insecticidal efficacy of citrus (Citrus spp) peel powder (CPP) against Tribolium castaneum (Herbst) was carried out in the. Treatments constituted CPP (orange, tangerine, lemon, grape and lime) admixed separately with maize grain (popcorn) at different dosages of 1, 2, 3, 4, and 5 g per 50 g equivalent to 2, 4, 6, 8, and 10 % w/w laid out in comple...

Laboratory study was conducted to determine the efficacy of insecticidal plant extracts Azadirachta indica A. (Juss), Lantana camara L. (Verbenaceae), Eupatorium odoratum L. (Asteraceae), Tephrosia vogelii Hook, Afromomum melegueta K.M. (Schumann) and Ocimum gratissimum (L) leaves against groundnut bruchid beetle (Caryedon serratus), and a syntheti...

Stem borers are major insect pests of maize worldwide. In Nigeria, maize yields are threatened by stem borers such as Busseola fusca, Sesamia calamistis, Eldana saccharina, Coniesta ignefusalis, and Chilo partellus. Field experiments were conducted in the early and late seasons of 2009 and 2010 in the Guinea Agro-ecological zone of Cross River Stat...

Field experiments were conducted in the early and late planting seasons of 2009 and 2010 to evaluate the efficacy of two pesticidal plants namely, Azadiractha indica and Gmelina arborea against stem borers of maize in Nigeria. The treatments consisted of 2 levels of synthetic insecticide, Carbofuran (1.0 and 1.5 kg ai/ha) and 2 levels each of A. in...

The black cowpea aphid, Aphis craccivora, is a key pest of Vigna unguiculata in tropical and sub-tropical countries. Olfactometry experiments were conducted in the laboratory to study the effects of host plant odours on apterae and alatae forms of A. craccivora. The host plants were fresh leaves of cowpea, V. unguiculata and groundnut, Arachis hypo...

Two field experiments were conducted in July and August 2004 to determine the effect of date of planting and rate of application of carbofuran (Furadan 3G) on damage by stem borers to flint, sweet and pop maize (Zea mays L)genotypes. Each experiment was laid out in a randomized complete block design (RCBD), with a spilt plot arrangement of treatmen...

Two field experiments were conducted in July and August 2004 to determine the effect of date of planting and rate of application of carbofuran (Furadan 3G) on damage by stem borers to flint, sweet and pop maize (Zea mays L) genotypes. Each experiment was laid out in a randomized complete block design (RCBD), with a spilt plot arrangement of treatme...

Field experiments were conducted to determine the distribution of stem borers in two agro-ecological zones of Cross River State, Nigeria. The experiments were conducted Akamkpa (rainforest agro-ecological zone) and Bekwarra (guinea savanna agro-ecological zone) during the 2009 and 2010 cropping seasons. The survey shows that species of Busseola fus...