J. Bio. Env. Sci.3(1), 54-60, January 2013
Number of eggs population was used to measure initial infestation of Callosobruchus maculatus on cowpea seeds treated with Piper guineense and Eugenia aromatic powder. The treatment involves the use of P. guineense and E. aromatic of particle sizes of 150µm and 300 µm at the rate of 0.4g per 20g of cowpea seeds infested with different insect densities (0, 1, 3, 5, 8 and 10 pairs). The eggs laid on the seeds increased with increase in insect density. Significantly more eggs were laid on untreated seeds compared to seeds treated with botanical powder. Adult emergence increased significantly with increase in insect density on the seeds with P. guineense, irrespective of the particle size of powder applied. In E. aromatic treated seeds there were no adult emergence in seeds treated with 150µm particle size, except in the seeds with highest insect population treated with 300µm. seeds treated with 10 pairs of insect with 300µm also had low number of adult emergence irrespective of the particles size. The percentage weight loss of the treated and untreated seeds increased with increase in insect population in P. guineense treated seeds. However, no seed weight loss was recorded in 150 µm and 300µm particle sizes of E. aromatic except in the seeds infested with 10 pairs. Also the seed weight loss was significantly higher than that of seeds infested with different levels of insect population. This study shows the dependent of insect population and botanical particle size on control of C. maculatus.
Adedire CO, Lajide L. 2001. Efficacy of powders of some tropical plants in the control of the pulse beetle, Callosobruchus maculatus (F.) (Coleoptera: Bruchidae). Applied Tropical Agriculture 6, 11-15.
Boeke SL, Loon van JJA, Huis van A, Kossou DK, Dicke M. 2001. The use of plant materials to protect stored leguminous seed against seed beetles: A review. Backhuys Publishers, The Netherlands, 108.
Busungu DG, Mushobozy DMK. 1991. The efficacy of various protectants against Zabrotes subfasciatus (Boh) Coleoptera, Bruchidae in common beans. Bean Research 6, 62–67.
Caswell GH. 1981. Damage to stored cowpea in the northern part of Nigeria. Samaru Journal of Agricultural Research 1, 1–11.
De Oliveira SJ, Vendramim J, Ribeiro EJ, Barbosa M. 2003. Bioatividade de diversos pós de origem vegetal em relaçao a Sitophilus zeamais Mots. (Coleoptera: Curculionidae). Ciência e Agrotecnologia 27, 1231-1236.
FAO (Food and Agricultural Organisation) 1999. Botanical oils as grain protectants, In: The use of spices and medicinals as bioactive protectants for grains. FAO Agricultural Services Bulletin No. 137. FAO,Vialle delle Terme di Caracalla, 00100 Rome, Italy.
Halstead DGH. 1963. External sex differences in stored-products Coleoptera. Bulletin of Entomological Research 54,119-134.
IITA. 1989. Research brief, 9: International Institute of Tropical Agriculture, Ibadan, Nigeria.
Jackai LEN, Asante SK. 2001. A case for the standardization of protocols used in screening cowpea Vigna unguiculata for resistance to Callosobruchus maculatus (Fabricus) (Coleoptera: Bruchidae). Journal of Stored Product Research 39, 251-263
Lale NES. 1995. An overview of the use of plant products in the management of stored product Coleoptera in the tropics. Post Harvest News Information 6, 69–75.
Mazzonetto F, Vendramim EJ. 2003. Efeito de pós de origem vegetal sobre Acanthoscelides obtectus (Say) (Coleoptera: Bruchidae) em Feijao armazenado. Neotropical Entomology 32,145-149.
Ofuya TI, Dawodu EO. 2002. Aspects of Insecticidal Action of Piper guineense Schum and Thonn Fruit Powders against Callosobruchus maculatus (F.) (Coleoptera: Bruchidae). Nigerian Journal of Entomology 19, 40 – 50.
Ofuya TI. 1986. Use of wood ash, dry chilli pepper fruits and onion scale leaves for reducing Callosobruchus maculatus (F.) damage in cowpea seeds during storage. Journal of Agricultural Science Cambridge 107, 467- 468.
Ofuya TI. 2001. Biology, Ecology and Control of Insect Pests of stored Legumes in Nigeria. In: Pests of Stored cereals and Pulses in Nigeria: Biology, Ecology and Control, Edited by T. I. Ofuya and N. E. S. Lale, Dave Collins Publication, Nigeria, 24 – 58.
Ofuya TI. 2003. Beans, insect and man. Inaugural Lecture Series 35, The Federal University of Technology, Akure, Nigeria 45.
Ogunkoya, MO, Ofuya TI. 2001. Damaged to cowpea by Callosobruchus maculatus (F.) in a humid tropical environment in Nigeria. Applied Tropical Agriculture 6(1), 45-50.
Ogunwolu EO, Idowu O. 1994. Potential of Powdered Zanthoxylum zanthoxyloides (Rutaceae) root bark and Azadirachta indica (Meliaceae) seed for the control of cowpea seed bruchid, Callosobruchus maculatus (Bruchidae) in Nigeria. Journal of African Zoology 108, 521–528.
Olotuah OF, Ofuya TI, Aladesanwa RD. 2007. Effect of particle size on insecticidal activity of dusts of Eugenia aromatica and Piper guineense against Callosobruchus maculatus (Fabricius). In: Formulation of Medicinal Plant in Plant and Animal Production in Nigeria. Proceedings Humboldt Kellog/5th SAAT Annual conference, Federal University of Technology, Akure, Nigeria, 47–50
Olotuah OF, Ofuya TI, Aladesanwa RD. 2010. Effect of particle size on insecticidal activity of dusts of Eugenia aromatica and Piper guineense against Callosobruchus maculatus. Nigeria Journal of Plant Protection 2, 34–39.
Ramzan M. 1994. Efficacy of edible oils against pulse beetle, Callosobruchus maculatus. Journal of Insect Science 7, 1: 37–39.
SAS 1998. Language guide for personal computer release. 6.03 ed. SAS (Statistic Analysis Systems) Institute, Cary, North Carolina, USA 1028p.
Schoonhoven VA. 1978. Use of vegetable oils to protect stored beans from bruchid attack. Journal Economic Entomology 71, 245–256.
Swella GB, Mushobozy DMK. 2007. Evaluation of the efficacy of protectants against cowpea bruchid Callosobruchus maculatus (F) on cowpea seeds (Vigna unguiculata (L.) Walp.). Plant Protection Science 43, 68–72.