/Resources << (2017). Taxonomic placing: Insecta, Holometabola, Coleoptera, Chrysomelidae. Insecticidal activity of alstonia booni de wild powder against cowpea bruchid, Callosobruchus maculatus (Fab.) cashew and neem as surface protectants of cowpea against infestation and damage by Callosobruchus maculatus (Fab.) Bio-insecticidal potency of five plant extracts against cowpea weevil, Callosobruchus maculatus (F.), on Stored Cowpea, Vigna unguiculata (L). 10.4.6.2.3 Weevils. %PDF-1.4 Ileke, K., Odeyemi, O. and Ashamo, M. 2012. (1991). Geographical distribution: Cosmopolitan, probably of West Africa origin, whence it was distributed around the globe with the trade in legumes. The pulse beetle, Callosobruchus maculatus F. (Coleoptera: Bruchidae), is an economically important pest of stored chickpeas, which produces losses up to 30% in a short period of two months . pest is the most serious insect threat to cowpea seeds during storage. /Type /Page By continuing you agree to the use of cookies. stream ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. 1991; Stoll, << >> Insecticidal activity of essential oil extracted from Morinda lucida was tested on pulse beetle Callosobruchus maculatus , which is a pest that causes serious damage to several pulses. Ten varieties of cowpea grains were infested with Callosobruchus maculatus. 120 mixed sex adult C. maculatus were introduced, along with 30 g of cowpeas. /F5 18 0 R Life history parameters of beetle strains from three different origins in West Africa were compared on two susceptible varieties of cowpea, Vigna unguiculata (L.) Walp. C. maculatus is a significant stored-crop pest because the larvae develop inside the pods of mature cowpeas (Vigna unguiculata), thus destroying them. This was to determine the level of quality deterioration of the cowpea varieties caused to the grains by the insects. Edwin, I.E., Jacob, I.E. The South India strain of Callosobruchus maculatus (F.), which has been in culture for 10 yr, cannot be distinguished from three cultures established from beetles collected in South India in 1989. The extremes of fecundity have less effect on the contribution of offspring to the next generation than the elimination of intraspecific competition by selective oviposition. 31: 209-211. Bambara groundnut seeds are liable to a simultaneous attack by two species of Bruchidae, Callosobruchus subinnotatus (Pic) and particularly by Callosobruchus maculatus (F.) (Coleoptera: Bruchidae). Bean beetles, Callosobruchus maculatus (Coleoptera: Chrysomelidae: Bruchinae), are agricultural pest insects of Africa and Asia that presently range throughout the tropical and subtropical world. are important pests of pulses. International Journal of Scientific Technology Research 3(8) 371-376. Biological Journal of the Linnean Society, Volume 56, Issue 3, November 1995, ... Local populations of Callosobruchus maculatus, the cowpea seed beetle, are established annually from small numbers of founders and the species has been distributed to many parts of the world where isolated populations may have been founded by very small numbers of individuals. >> The South India strain of Callosobruchus maculatus (F.), which has been in culture for 10 yr, cannot be distinguished from three cultures established from beetles collected in South India in 1989. (COLEOPTERA: BRUCHIDAE) TO COUMARIN EXTRACTS Ismail, I. endobj Copyright © 1991 Published by Elsevier Ltd. https://doi.org/10.1016/0022-474X(91)90004-V. /MediaBox [0 0 612 792] The insect (C. maculatus) lays its eggs on the seeds of cowpea, which hatch and produced larvae that bore into the seed cotyledons on which they feed (Kitch et al. Females of the biotype disperse their eggs uniformly, lay eggs on larger beans first, have their oviposition inhibited if beans already carry eggs, and the larvae exhibit contest competition. The South India strain of Callosobruchus maculatus (F.), which has been in culture for 10 yr, cannot be distinguished from three cultures established from beetles collected in South India in 1989. Cowpeas are rich in sugars and proteins, and in addition produce protease inhibitors … In Nigeria, it has been estimated that 3% of the annual production in 1961/62 was lost due to attack by C. maculatus. /Length 10029 /F2 9 0 R Common name: Cowpea weevil. Abstract: The reproductive success of Callosobruchus maculatus Fabricius, the main insect pest of stored cowpea, may vary between strains of this beetle and between varieties of the host seeds. >> /Font << Copyright © 2020 Elsevier B.V. or its licensors or contributors. ����YU�@�R��,�S:�m���|�DA�@L&�Y�ӊ��������Ya]��)�o�e��4S�U|�
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���~�[��0L���UcWu=�.Vm:��X�t(�I�@q�%�[���w..�ݼ� w˶N���T�2J]^��e�.�ݲt�ள��-.�]�^��Ƭ��Q�{�3�k�����y���ue��[��֖�tr These weevils cause loss of quality, quantity and seed viability. The insecticidal activity was compared with two pesticides, Phostoxin and Primo-ban-20. /F6 21 0 R /Parent 2 0 R �:=��T &����̶E:_mc��j�. /ProcSet [/PDF /Text ] 4 0 obj A. Pests and Plant Protection Dept. Journal of Tropical Science.