{"title":"Mass Production of the Insect-Pathogenic Fungus, Metarhizium anisopliae (Metchnikoff) Sorokin (Deuteromycota: Hyphomycetes), on Different Cereal Grains.","authors":"B. I. Ahmed, M. A. Ansarl, F. A. Shah, T. Butt","doi":"10.36108/nje/0102/72.0120","DOIUrl":"https://doi.org/10.36108/nje/0102/72.0120","url":null,"abstract":"Five cereal grains. namely. maize (Zea mays L.). rice (Oryza sativum L.). sorghum (Sorghum bicolar (L.) Moench). millet (Pennisetum glaucum (L.) R. Br), and wheat (Triticum aestivum L.) were crushed and evaluated for their potentials to support growth and sporulation of the insect-pathogenic fungus. Metarhizium anisopliae (Metchnikoff) Sorokin (isolates V275 and ARSEF 3297). The conidia produced were tested for viability and virulence against Galleria mellonella Met. and Tenebrio molitor L using immersion bioassay and spore bound Pr1 assay. Percentage germination of conidia at 24 h was high (95-100%). Both immersion bioassay and spore bound Pr1 assay showed that inocula made from all substrate grains were virulent with those from millet being significantly (P=0.05) more virulent. Millet would be a cheaper substitute to rice previously recommended as solid substrate for mass production of M. anisopliae","PeriodicalId":183712,"journal":{"name":"Nigerian Journal of Entomology","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116345989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. C. Ewuim, C. E. Akunne, A. Anumba, H. O. I. Etaga
{"title":"Insects Associated with Palmwine from Oil Palm (Elaeis guineensis Jacq.) In Alor, Southeastern Nigeria","authors":"S. C. Ewuim, C. E. Akunne, A. Anumba, H. O. I. Etaga","doi":"10.36108/nje/0102/72.0130","DOIUrl":"https://doi.org/10.36108/nje/0102/72.0130","url":null,"abstract":"A study to determine the insects associated with palmwine tapped from oil palm (Elaeis guineensis, Jacq.) was conducted at three villages, namely, Ide, Okebuonye, and Umuokwu, in Alor town, southeastern Nigeria, between Feb. and Mar. 2008. Unsieved palmwine in 10 L containers were collected simultaneously from tappers at the three villages for examination. Fifteen insect species in 12 genera and eight families were recovered. Some were attracted by palmwine odour while others got trapped while foraging or prospecting for nectar, mate, oviposition site, or they accidentally dropped into the collecting gourds. Camponotus maculatus (Fab.) was the most preponderant followed by unidentified dipterous larvae, Mycodrosophilla sp., C. acvapimensis Mayr. Apis mellifera L., Cryptarcha sp., and unidentified lepidopterous larvae. Collections of A. mellifera and lepidopterous larvae were limited to Ide village. Species at low levels of abundance included Carpophilus fumatus (Boh.), C. perrisi (For.), Megaponera foetans (Fab.), Oecophylla longinoda (Latr.), Musca domestica (L.), Forficula senegalensis (Serville), Brachypeplus pilosellus (Murr.), Megalurothrips sp. and Blatella sp. Numerically higher number of insects were collected from Ide (263) compared with Umuokwu (195) or Okebunoye (181) but the differences were due to random variation.","PeriodicalId":183712,"journal":{"name":"Nigerian Journal of Entomology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130948565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Potential of Momordica charantia (L.) Bitter Gourd and Garlic-Pepper Spray Extracts for the Control of Myzus persicae (Sulzer) and Cercospora Leaf Spot on Pepper, Capsicum annuum (L.).","authors":"O. A. Oke, E. A. Adesegun, R. O. Illokhoria","doi":"10.36108/nje/0102/72.0150","DOIUrl":"https://doi.org/10.36108/nje/0102/72.0150","url":null,"abstract":"The trials were conducted at the National Horticultural Research Institute, lbadan, during the rainy seasons of 2007 and 2008 to determine the potential of 5 % aqueous extracts of the leaves of Momordica charantia (L.), bulb of garlic, Allium sativum (L.), plus fruit of chilli pepper, Capsicum annum (L.) [15 g : 3 gin 1 L of water l and lambda cyhalothrin (Karate x EC ; 0.5L/ ha) for controlling the green peach aphid [Myzus persicae (Sulzer)] and Cercospora leaf spot on three varieties of pepper: Kano. Katsina, and Gombe local, in a 3 x 4 factorial experiment. In the two years of study. there were insignificant varietal differences in aphid infestation and also insignificant interaction between varieties and spray treatments on aphid infestation and leaf spot severity. M charantia and garlic-pepper sprays were significantly (P=0.05) more effective in reducing the green peach aphids on pepper than lambda cyhalothrin which had mean aphid infestation score of 3.20 in 2007 and 3.13 in 2008. Sprayed plots had significantly less severe disease than the control plots. There were significant (P=0.05) varietal differences in leaf spot severity score with Katsina local variety showing tolerance (severity score of 3.98 in 2007 and 4.05 in 2008); the highest number of fruits/plant (4.97 in 2007 and 4.33 in 2008): and the highest mean weight of fruits/ plant (0.98 kg in 2007 and 0.55 kg in 2008).","PeriodicalId":183712,"journal":{"name":"Nigerian Journal of Entomology","volume":"816 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116086056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Developmental Biology of the Flea Beetle, Podagrica uniforma (Jacoby) [Coleoptera: ChrysomelidaeJ, on Okra, Abelmoschus esculentus (L.) Moench.","authors":"O. A. OK£, J. A. Odebiyi","doi":"10.36108/nje/0102/72.0110","DOIUrl":"https://doi.org/10.36108/nje/0102/72.0110","url":null,"abstract":"The developmental biology of the okra flea beetle. Podagrica uniforma (Jac.), was studied in the laboratory under ambient conditions (24-28°C, 79-92 % RH: 12 hour photoperiod) and the various life cycle stages were described. Females laid 159 ± 33.6 eggs over 40.20 ± 8.3 days. The pre-oviposition period was 8.4 ± 1.5 days and the post-oviposition period was 5.1 ± 2.6 days. The eggs were creamy and elliptical, 0.08 ± 0.01 mm in length and 0.03 ± 0.03 mm in width. Larvae were oligopod and elongate with off-white thoracic and abdominal regions and brown head and anal disc. The head-capsule width of the 1st, 2nd and 3rd instars averaged 0.20,0.30 and 0.43 mrn, respectively. Average growth rate for the three larval instars was 1.49. There was a high significant correlation (r = 0.997: P = 0.05).between the mean width of the head-capsules and elapsed developmental period. The pre-pupa was a non-feeding, sluggish larval stage. The means of pre-pupal length and width were 3.6mm and 0.7mm. Pupa was exarate, off-white, and looked like a mummified adult. Pupal length and width averaged 2.9 mm and 1.1 mm, respectively. Sex ratio was 1.5: 1. The head, thorax and elytra of adult were golden brown. Females were significantly larger than males (P= 0.05).","PeriodicalId":183712,"journal":{"name":"Nigerian Journal of Entomology","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125053476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Pod Sucking Bugs (Hemiptera: Coreidae, Alydidaei Infestation on Yield of Intercropped Cowpea (Vigna unguiculata (L.) Walp.] in Maiduguri, Nigeria.","authors":"U. Zakka, B. M. Sastawa, N. Lale","doi":"10.36108/nje/9002/62.0190","DOIUrl":"https://doi.org/10.36108/nje/9002/62.0190","url":null,"abstract":"An experiment was carried out at the University of Maiduguri Teaching and Research Farm to assess damage caused by pod sucking bugs [Anoplocnemis curvipes (Fab.), Cluvigralla shadabi Doll., C. tomentosicollis Stall, Riptortus dentipes (Fab.), Mirperusjaculus (Thun.), and Nezara viridula L.] on cowpea [Vigna unguiculata (L.) Walp.] between Jul. and Nov. 2002. Treatments were set up as 4x3x2 factorial arrangement in a strip-split design with planting date (Jul.3 1. Aug. 7. 14 and 21 ) as the main plot factor. cropping pattern of pearl millet [Pennisetum glaucutn (L.) R. Br.] and cowpea (3: 1: 2: 1: 1: 1) as subplot factor, and cropping system (millet-cowpea and millet-cowpea-soybean-groundnut intercrop) as sub-subplot factor. Results for planting date showed that the number of bugs/plant and percentage pod damage were significantly lower (P<0.05) while pod yield/plant was significantly higher for the cowpea planted on Jul. 31 compared with those planted on other dates. There were significantly (P<0.05) fewer numbers of bugs/plant for the 2: 1 cropping pattern, lower percentage pod damage for the I: 1 cropping pattern. and higher pod yield/plant for the 3: 1 cropping pattern. For the cropping system. millet-cowpea-groundnut-soybcan had lower number of bugs/plant and higher pod yield/plant than the millet-cowpea cropping system. Planting cowpea early in the season using the cropping pattern 3: 1 in conjunction with the millet-cowpea-groundnut soybean cropping system offered a more effective means of escaping from the yield-depressing effect of pod-sucking bug infestation.","PeriodicalId":183712,"journal":{"name":"Nigerian Journal of Entomology","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114368384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Repellent Effects of Five Monoterpenoid Odours Against Two Stored Product Insect Pests","authors":"D. A. Ukeh","doi":"10.36108/nje/9002/62.0120","DOIUrl":"https://doi.org/10.36108/nje/9002/62.0120","url":null,"abstract":"Five monoterpenoids, (R)-linalool. 1,8-cineole. (S)-2-heptyl acetate, (S)-2-heptanol, and citral, which are natural components of the essential oils of Afratnomum melegueta (K. Schum) and Zingiber officinale (Roscoe), were tested at the ratios in which they occur naturally against Tribolium castaneutn (Herbst.), and Rhyzopertha dominica (Fab.) in a 4-way olfactometer. The results showed the repellent properties of the compounds as both beetles spent less time in the olfactometer arm containing the test stimuli. Linalool and (S)-2-heptanol were stronger repellent compounds than the others. With linalool, T. castaneum significantly preferred the control arms (spending 2.78 ± 0.22 min in them) compared to the test arms (1.22 ± 0.22 rnin.). For R. dominica the times spent were 2.87 ± 0.26 min in the control anTISand 0.89 ± 0.28 min in the test arm. With (S)-2-heptanol, T. castaneum spent 1.23 ± 0.27 min in the test arm compared to 2.83 ± 0.23 min in the control arms. R. dominica spent 1.61 ± 0.24 min in the test arm and 2.69 ± 0.23 min in the control arms. For the number of entries or visits made. R. dominica made significantly fewer visits to linalool-treated arm (P= 0.018) and (S)-2-heptanol treated arm (P=0.038) compared to the control arms. These compounds could be suitable as repellents or fumigants against stored product pests in a small-scale farmer level.","PeriodicalId":183712,"journal":{"name":"Nigerian Journal of Entomology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131771460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Monitoring Population of the African Invader Fly, Bactrocera invadens (Drew, Tsuruta & White) [Diptera: Tephritidae] with Methyl Eugenol and Nulure on Citrus in Ikwuano Local Government Area of Abia State. Nigeria","authors":"E. Asawalam, S. Ekesi, O. K. Ibeabuchi","doi":"10.36108/nje/9002/62.0170","DOIUrl":"https://doi.org/10.36108/nje/9002/62.0170","url":null,"abstract":"Fruit flies cause economic yield losses in fruit production through direct damage to fruits. They also limit export market opportunities through the imposition of strict quarantine regulations by importing countries. This study was conducted in lkwuano Local Government Area (LGA) of Abia State, Nigeria to determine the incidence of the new invasive fruit fly, Bactrocera invadens, on Citrus. Adult B. invadens were monitored in four randomly Selected locations (Oboro, Ibere, Ariam, and Oloko) in the LGA using Lynfield traps baited with para-pheromone (Methyl eugenol) or synthetic food bait (Nulure). Mass trapping showed the presence of the new fruit fly in the study area. Oboro had a significantly (P< 0.05) higher mean number of trapped B. invadens (82.7) than other locations. The results indicate the possibility of using para-pheromone for mass trapping the fruit fly to reduce infestation on Citrus plants.","PeriodicalId":183712,"journal":{"name":"Nigerian Journal of Entomology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129799988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Suitability of Four Smoked Fish Species to Dermestes maculatue (De Geer) [Coleoptera: Dermestidae].","authors":"U. Zakka, J. Ayertey, Cobblah","doi":"10.36108/nje/9002/62.0150","DOIUrl":"https://doi.org/10.36108/nje/9002/62.0150","url":null,"abstract":"The suitability of four smoked fish species. namely. the Trigger fish (Balistes capriscus Gmelin). Catfish (Synodontis sp.), African catfish (Clarias gariepinus Burchel), and Nile tilapia (Orcochromis niloticus Linnaeus), for hide beetle. Dermestes maculatus (De Geer). development was investigated in the laboratory over a 90-day period. Significant (P<0.05) weight losses were recorded in the two multiple-choice and one no-choice tests with the highest weight loss (78.50±7.15 %) occurring in Synodontis sp. and the lowest weight loss (46.7±2.92 %) occurring in O. niloticus. Interactions between fish species and test methods were significant (P<0.05). The number of D. maculatus which emerged when the pest had free movement from one fish jar to another jar was significantly (P<0.05) higher compared with the test where the pest was confined to ajar containing a single fish species. Significantly higher number of adults developed on Clarias in the no-choice test.","PeriodicalId":183712,"journal":{"name":"Nigerian Journal of Entomology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130121217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Influence of Fruit Acidity on Infestation and Damage to Sweet Orange (Citrus sinensis Osbeck)· Varieties by Ceratitis Species (Diptera: Tephritidae) at Ibadan, Nigeria.","authors":"V. Umeh, S. O. Babalola, E. Egbufor","doi":"10.36108/nje/9002/62.0160","DOIUrl":"https://doi.org/10.36108/nje/9002/62.0160","url":null,"abstract":"In 2003 and 2004 fruits of 12 sweet orange varieties: Pineapple, Parson Brown, Hamlin. Washington Navel. Carter Navel, Valencia Late. Lue Gin Gon, Agege, Etinam. Meran, Bende and Umudike were evaluated for susceptibility to fruit fly. Ceratitis spp., infestation. Fruit drop beneath tagged trees (4/variety), resulting from fruit fly damage, was recorded and 10 randomly selected fruits were held in cages for emergence of adult fruit flies. Ten mature fruits of each variety were analyzed for rind and fruit acidity which were correlated with fruit fly infestation. The results showed that Parson Brown, Washington Navel and Carter Navel. which were moderately acidic (PH 4.4 – 4.5), were more susceptible to fruit flies as they had more dropped fruits per tree (2.3 – 3.8) compared to the highly acidic (pH = 3.9), local varieties (Agege, Etinam, Meran. Bende and Umudike) with 0.8 – 1.7 dropped fruits/tree. Positive and significant correlations were respectively established in 2003 and 2004 between fruit fly infestation and acidity of the rind (r = 0.88 and 0.447; P<0.05) and juice (r = 0.88 and 0.655;P<0.05): between fruit fly emergence from infested fruits and acidity of juice (r = 0.905 and 0.90: P<0.01); and between fruit fly infestation and number of dropped fruits (r = 0.76 and 0.77; P<0.05).","PeriodicalId":183712,"journal":{"name":"Nigerian Journal of Entomology","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123161084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Repositioning Insect Science for Sustainable Food Security and Economic Growth in Nigeria.","authors":"A. Adesiyun","doi":"10.36108/nje/9002/62.0110","DOIUrl":"https://doi.org/10.36108/nje/9002/62.0110","url":null,"abstract":"The paper defines entomology and gives the characteristics of. and reasons for studying insects. The roles played by insects at all stages of the food chain (production, processing, marketing and storage) and their impact on agriculture and sustainable food security in Nigeria are described. The areas needing reforms to reposition insect science for food security and economic growth in Nigeria include entomology curricula at all levels of education: electronic-based teaching and research in entomology: extension entomology: and pest control service. The reforms needed at the pre-college and college levels have to do more with delivery than with adequacy or relevance of the curriculum; teachers need to be more equipped with teaching aids. Whereas at the undergraduate level, the reform should include introduction of new courses such as entrepreneurship in entomology. at the post-graduate level the needed reforms are in the areas of adequacy. relevance and delivery of existing curricula. Entomological research conducted should be guided by each institution’s relative strengths in personnel and facilities. Extension entomology education should emphasize integrated pest management and the practice of pest control should no longer be left in the hands of illiterates. Finally, the paper advocates the establishment of a National Museum of Natural History to foster creation of scientific awareness among the youths. evolve a national policy on environmental conservation. and provide identification service on natural history objects.","PeriodicalId":183712,"journal":{"name":"Nigerian Journal of Entomology","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123298100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}