callosobruchus maculatus scientific journal

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. Journal of Tropical Science. Infestation may start in the pods before harvest and carry over into storage where substantial losses may occur. 10.4.6.2.3 Weevils. Insecticidal activity of alstonia booni de wild powder against cowpea bruchid, Callosobruchus maculatus (Fab.) stream /Filter /FlateDecode %PDF-1.4 International Journal of … 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. Callosobruchus spp. Evaluations of Bacillusspecies against Callosobruchus chinensis , Callosobruchus maculatus(Coleoptera: Tenebrionidae ) under laboratory and store conditions. 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. are important pests of pulses. These cultures represent a geographic biotype of C. maculatus that is widely distributed in the state of Tamil Nadu, India and is stable in culture. In Nigeria, it has been estimated that 3% of the annual production in 1961/62 was lost due to attack by C. maculatus. Its oviposition and growth are continuous. C. maculatus is a significant stored-crop pest because the larvae develop inside the pods of mature cowpeas (Vigna unguiculata), thus destroying them. 120 mixed sex adult C. maculatus were introduced, along with 30 g of cowpeas. International Journal of Scientific Technology Research 3(8) 371-376. 4 0 obj Geographical distribution: Cosmopolitan, probably of West Africa origin, whence it was distributed around the globe with the trade in legumes. /F6 21 0 R {The genus Callosobruchus was formerly in the family Bruchidae}. (COLEOPTERA: BRUCHIDAE) TO COUMARIN EXTRACTS Ismail, I. S. E. El-Gengaihi A. Affifi Medicinal and Aromatic Plants Dept., National Research Centre, Dokki, … Key words: Cowpea, Callosobruchus maculatus, Cultivars, Tannin, Saponin,Seed coat it. endobj /MediaBox [0 0 612 792] Echendu, T.N.C. Fecundity varies greatly within and between cultures. /F5 18 0 R pest is the most serious insect threat to cowpea seeds during storage. /F1 6 0 R Callosobruchus maculatus (Fabricius). Cowpeas are rich in sugars and proteins, and in addition produce protease inhibitors … Common name: Cowpea weevil. Females cement eggs to the surface of the host seeds. %�� (1991). >> Copyright © 1991 Published by Elsevier Ltd. https://doi.org/10.1016/0022-474X(91)90004-V. (2017). IJSER © 2015 http://www.ijser.org. 1991; Stoll, Bean beetles, Callosobruchus maculatus (Coleoptera: Chrysomelidae: Bruchinae), are agricultural pest insects of Africa and Asia that presently range throughout the tropical and subtropical world. << Ten varieties of cowpea grains were infested with Callosobruchus maculatus. 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. 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. >> By continuing you agree to the use of cookies. A. Pests and Plant Protection Dept. /F2 9 0 R 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. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Bean beetles, Callosobruchus maculatus (Coleoptera: Chrysomelidae: Bruchinae), are agricultural pest insects of Africa and Asia that presently range throughout the tropical and subtropical world. International Journal of Scientific & Engineering Research, Volume 6, Issue 8, August -2015 1816 ISSN 2229-5518. 3 0 obj >> /Parent 2 0 R Taxonomic placing: Insecta, Holometabola, Coleoptera, Chrysomelidae. These weevils cause loss of quality, quantity and seed viability. We use cookies to help provide and enhance our service and tailor content and ads. Edwin, I.E., Jacob, I.E. 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. This species also is known as the southern cowpea weevil. The insect census taken at one, two and three months showed a progressive increase in insect population from one month to three months. These cultures represent a geographic biotype of C. maculatus that is widely distributed in the state of Tamil Nadu, India and is stable in culture. x^�=k��+��R��.o0��r_N��D�-'�W�ru�gwK�ZKZ��Ň~=��R3`�ή��it7ݍ��>{��_�4�fU��|��{��ڶ��ڕ�u��\�x��,�+�v��>�l�*��,�$\>�ۓ8��}��ٟ?�ᶬV��u�|�]�˗YQ.��WY�ӳ/��,��]~Ͼ��ϡ�"�.��[|�=~^��s��5��P�� ֬ʢG�� ߖٵ%��4n��s�4��H�f�)�5�GeaW�i4y~�Ц��̀�UӜǭ^9�NB1E��r�C�v j��KS�/O<8_�.�!ǧO��F�\�� 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. 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). These cultures represent a geographic biotype of C. maculatus that is widely distributed in the state of Tamil Nadu, India and is stable in culture. /F4 15 0 R Ambayeba Muimba-Kankolongo, in Food Crop Production by Smallholder Farmers in Southern Africa, 2018. The insecticidal activity was compared with two pesticides, Phostoxin and Primo-ban-20. /Length 10029 �:=��T &��̶E:_mc��j�. (Coleoptera: Chrysomelidae) in stored cowpea seeds. /Contents 4 0 R /Resources << 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. << Bio-insecticidal potency of five plant extracts against cowpea weevil, Callosobruchus maculatus (F.), on Stored Cowpea, Vigna unguiculata (L). Ileke, K., Odeyemi, O. and Ashamo, M. 2012. ��YU�@�R��,�S:�m��|�DA�@L&�Y�ӊ��Ya]��)�o�e��4S�U|� W��e�]~��r�w��B��ߖ��-��<0�b��v��5�{�)�U�:/W�� ~�[��0L��UcWu=�.Vm:��X�t(�I�@q�%�[��w..�ݼ� w˶N��T�2J]^��e�.�ݲt�ள��-.�]�^��Ƭ��Q�{�3�k��y��ue��[��֖�tr /F3 12 0 R 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 . /F7 24 0 R ESTs were recently produced from the larval midgut of the cowpea weevil (Callosobruchus maculatus), 73 allowing further comparison among these three phytophagous species. /ProcSet [/PDF /Text ] This was to determine the level of quality deterioration of the cowpea varieties caused to the grains by the insects. /Font << 31: 209-211. cashew and neem as surface protectants of cowpea against infestation and damage by Callosobruchus maculatus (Fab.) Copyright © 2020 Elsevier B.V. or its licensors or contributors. /Type /Page European Scientific Journal September 2014 /SPECIAL/ edition Vol.3 ISSN: 1857 ± 7881 (Print) e - ISSN 1857- 7431 229 BIOLOGICAL RESPONSE OF COWPEA BRUCHID, CALLOSOBRUCHUS MACULATUS (FAB.) >> 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.

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