Browsing by Author "Anda, D.A."

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    COMPARATIVE EFFICACY OF EDIBLE PLANT POWDERS OBTAINED FROM PIPER GUINEENSE AND MORINGA OLEIFERA IN THE CONTROL OF THE COWPEA BRUCHID, CALLOSOBRUCHUS MACULATUS INFESTING COWPEA SEEDS IN STORAGE
    (Department of Agronomy, Nasarawa State University Keffi, 2012-09-16) Anda, D.A.; Ajayi, Folorunso A.
    Two edible plant product powders, West Africa black pepper (Piper guineense Schum and Thorn) and Horseradish (Moringa oleifera Lam) were studied for effectiveness in controlling the cowpea seed bruchid (CSB) Callosobruchus maculatus (F.) in the Agronomy Laboratory, Collage of Agriculture, Lafia. A completely randomized design (CRD) consisting of three treatments (root–bark, leaf and seed powders) each at three dosage rates of 0.5, 0.75, 1.00 g were admixed with 30 g of cowpea seeds in three replications contained in plastic cups with a lid. Untreated control was also provided. 10 pairs of 3 day old adult C. maculatus were introduced into each plastic container and allowed to mate and oviposit. Adult mortality was taken at 24 hourly for a period of 7 days. Number of eggs laid was taken from 10 randomly selected seeds from each treatment and replicate. The entire plant product powders significantly (p < 0.05) reduced oviposition by C. maculatus. Also, significant (p < 0.05) result was observed in grains treated with seed powders of the two plants. Adult emergence decreased with time among seeds treated with the plant products and increased in time among the seeds without treatment (control). There were however significant differences (p < 0.05) between the edible plant powders and the control treatment at all dosage rates tested. The effectiveness of the seed powders for the two edible plants was significantly higher when compared with the leaf powder and the root bark. Thus, can be ranked as follows: seed powder > root–bark > leaf powder.
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    FACTORS MILITATING AGAINST THE REALIZATION OF CITRUS FRUIT YIELD IN NASARAWA STATE, NIGERIA.
    (Department of Agronomy, Nasarawa State University Keffi, 2016-01-01) Anda, D.A.; Abimuku, O.E.; Yohanna, J.K.; Ajayi, Folorunso A.
    The study examined some biotic and abiotic factors militating against citrus production in Nasarawa State. The data were collected using structured questionnaire which dwelled on the socio-economic characteristics of the farmers, problems and prospects of citrus production. Three hundred questionnaires were administered randomly to obtain the relevant information. Simple percentages were used as basis of data analysis. A range of the citrus farmers (both men and women) (50%) were grouped between 31-40 years old. A proportion of both men and women were randomly selected. The results showed that the farm size (53.33%) of the farmers is between 2-4 hectares. Also, 83.33% and 16.67% of the farmers produced citrus for market and consumption purposes, respectively. About 66.67% of the farmers produced sweet orange type that matured during dry season which are often predisposed to insect pest attack. Poor storage facilities (83.33%), lack of trained extension workers (66.67%), poor marketability of citrus fruit and citrus products (66.67%), lack of capital, poor soil fertility and lack of interest by the farmers (33.33%) are some of the constraints that have crippled citrus production activities in the study area. It was suggested among others that harvesting of fruits should be when they are mature and are about to ripen instead of waiting for majority of fruits to ripen before harvesting thereby increasing susceptibility to insect pest attack.
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    he Use of Three Edible Oils in the Management of Caryedon serratus (Olivier) (Coleoptera: Bruchidea) Infesting Stored Groundnut Seed Pods in Lafia, Nigeria.
    (Department of Agronomy, Nasarawa State University Keffi, 2014-01-01) Anda, D.A.; Ajayi, Folorunso A.; Olomisakin, A.; Jibril, H.
    hree edible plant product oils, West African Black Pepper (WABP) Piper guineense Schum and Thonn, Clove, Syzgium aromaticum (L.) Merril and Percy, Ethiopian pepper oil, Xylopia aethiopica (Dum) A. Rich, were studied for their effectiveness in the control and management of the Caryedon serratus Olivier. The oil was used at different dosage rates of 0.5, 1.0, 1.5, and 2.0 mg/70 g of unshelled groundnut pods against the groundnut bruchid C. serratus. The experiment was carried out as treatment before infestation (TBI) in the laboratory. The entire plant product oil significantly (P<0.05) reduced oviposition by C. serratus when compared with oviposition in the control treatments. Clove and WABP oil at the highest dosage rate completely reduced oviposition and hence deterred adult emergence at the F1 generation respectively while Clove oil deterred adult emergence of the F2 generation at the dosage rates of 1.5 and 2.0mg and WABP oil also completely deterred F2 adult emergence at the dosage rates of 0.5, 1.0 and 2.0mg respectively. The potential effectiveness of all the three edible plant product oils implies that stored unshelled groundnut pods could be adequately protected against Caryedon serratus, thus reducing their infestation and damage on groundnut.
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    Laboratory Evaluation of the Toxic and Repellent Effects of Three Edible Oils on Cowpea Bruchid, Callosobruchus maculatus (F.) [Coleoptera: Bruchidae].
    (Department of Agronomy, Nasarawa State University Keffi, 2008-03-03) Ajayi, Folorunso A.; Anda, D.A.
    Toxicity and repellency of the oil extracted from benniseed (Sesamum indicum L.), olive (Olea europaea L.), and horseradish (Moringa oleifera Lam.) were evaluated in the laboratory on cowpea bruchid, Callosobruehus maeulatus (F.), at 28- 31°C and 41-72% RH. The tests were laid in completely randomized design with four replications per treatment. The rates of oil tested for toxicity were 0 (control), 0.10,0.20,0.30,0.40 and 0.50 gl10 g cowpea seeds. The repellency test was conducted in Petri dish containing treated and untreated Whatman No.1 filter paper; the rates of oil tested were 0 (control), 0.5, 1.0, 1.5 and 2.0 g/30 em". LCso was calculated from probit analysis of toxicity data while repellency data were analyzed with GENSAT 2005 programme. The oil from each of benniseed, olive, and horseradish caused significantly higher (P<0.05) mortality to C maculatus adults at 24 h post-treatment compared to the control treatment; the olive oil was the most potent (LCso of 0.125 gl10 g seed) and benniseed oil the least potent (LC," of 0.279 gll 0 g seed). At the highest rate of application, the three oils evoked Class V repellency (81.0% for horseradish; 81.0% for olive, and 91.8% for benniseed). The toxicity and repellent effects of the oils imply that stored cowpea seeds can be adequately protected against C. Maculatus.
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    NSECTICIDAL EFFICACY OF THREE EDIBLE PLANT PRODUCT OILS GAINST THE COWPEA BRUCHID, Callosobruchus maculates (FAB.)
    (Department of Agronomy, Nasarawa State Univesity Keffi, 2011-10-09) Ajayi, Folorunso A.; Olomisakin, A.; Anda, D.A.; Ewete, O.; Ogundiran, E.O.
    Three edible plant product oils, West African Black Pepper (WABP) Piper guineense Schum and Thonn; Claot, '