Description of the various stages is presented in the discussion. Xianhong Zhang, College of Agronomy, Shanxi Agricultural University, Taigu, Shanxi 030801, China. Economic importance: The Adzuki beetle is a major pest of stored lentils. 0000195152 00000 n The sophisticated olfactory system of insects has a key role in their growth and reproduction, and elucidating the molecular mechanisms of this system in economically important insect species will be useful for development of new and effective insecticides. The antennae of adult C. chinensis exhibited sexual dimorphism. It may cause substantial damage, coming to over 80% losses in weight and in germination rates. Powered by Hugo by This pest is commonly found in Africa, USA, China, Burma, Japan, Philippines and India. 0000014408 00000 n 0000079657 00000 n The female have serrated antenna and the male have pectinate morphology. 0000056364 00000 n Applied Entomology and Zoology 34: 547-550. Under optimal conditions complete development takes place in as little as 22-25 days. Chemical control: Organophosphates and neem compounds have been used in different countries. 0000107685 00000 n Somata, P., Ammaranan, C., Ooi, Peter A.-C. and Srinives, P. 2007. Please check your email for instructions on resetting your password. Taxonomic placing: Insecta, Holometabola, Coleoptera, Chrysomelidae. Website: 0000080072 00000 n 0000005314 00000 n 0000021177 00000 n 0000010356 00000 n The average duration of life cycle of C.chinensis on various pulses varied siginificantly. 0000001754 00000 n In America it is generally known as Cowpea weevil Marks of Identification. The time taken to complete the life cycle varies according to temperature and the nature of grains on which the pest breed. 0000022388 00000 n 0000214759 00000 n and Ellis, R.H. 1999. The average longevity of adults of C. chinensis was 120 days for males and 223 days for females when supplied with 5% solution of saccharose and yeast as food in the laboratory at 18°C and 75% RH. 0000105242 00000 n Islam, W. and Kabir, S.M.H. The beetle, when viewed from above, presents a heart shaped appearance like spots in the middle of the body and a posterior spot at the junction of head and thorax the dorsal surface. 0000015014 00000 n Development requires several weeks. %%EOF (In the past the pest was erroneously placed in the family Bruchidae). 0000006453 00000 n 0000016292 00000 n Before publishing your articles on this site, please read the following pages: 1. Copyright © 2020 Elsevier B.V. or its licensors or contributors. After copulation and fertilization, the eggs are laid singly but several of them can be seen on one grain. 0000176961 00000 n Report a Violation, Saw-Toothed Grain Beetle (Oryzaephilus Surinamensis): Distribution and Life cycle, Khapra Beetle (Trogoderma Granarium): Distribution and Life Cycle, Rust-Red Flour Beetle (Tribolium Castaneum): Distribution and Life Cycle. Life cycle of Callosobruchus chinensis L. and its resistance to mungbean (Vigna radiata). Heating seeds to 50ºC for one hour kills the eggs and larvae. 0000003103 00000 n Working off-campus? 0000008312 00000 n 0000004425 00000 n 0000008049 00000 n 0000004127 00000 n �q @���Ä$� L7��̓�����\�=*��=�&��2A�K�3. 0000007233 00000 n Download : Download high-res image (99KB)Download : Download full-size image. 0000010766 00000 n In India it is widespread in almost every part of the country. Prohibited Content 3. Pupation takes place inside the grain and pupa is dark brown in colour. Adult life span ranges from 5 to 15 days. 0000003140 00000 n A female lays 50-100 eggs on smooth legume pods. The life cycle of the most economically important species of bruchid is relatively short. To determine the wild host range in the field, the ripe pods of 15 common species of wild legumes were collected in Okayama and rearing experiments on these beans were carried out in the laboratory. Biological control: Several parasitoids of the families Braconidae and Pteromalidae attack C. chinensis in various parts of the world. (Hymenoptera: Pteromalidae), a larval-pupal ectoparasitoid of the pulse beetle, Callosobruchus chinensis (L.). The larvae feed on the seed leaving only the seed coat. ; Mantala, J.P. Several mungbean entries were screened for resistance to Callosobruchus chinensis L. Results of both free choice and no-choice tests showed that TC 1966 was highly resistant while the Pag-asa series (1, 3, 5, and 7) were found susceptible. The female adult is slightly bigger than the male, measuring 3-4 mm in length and 2-3 mm width. 0000006288 00000 n It is to be hoped that some of these genes will be potential targets for developing novel behavioral blocker compounds and pesticides to interfere with the olfactory system of C. chinensis and help reduce population densities. 0000056839 00000 n and Podoler, H. 1968. We assembled antennal transcriptome of C. chinensis using Illumina sequencing technology. 0000214050 00000 n Adult C. chinensis oviposit eggs on the bean surface, and the larvae then penetrate and feed on the beans. Content Guidelines 2. 0000176649 00000 n Bioinformatics analyses identified a set of putative olfactory genes, including 21 odorant binding proteins (OBPs) and five chemosensory proteins (CSPs). 0000022274 00000 n hޔ�YLSQ�g.���V�-.ѦF[J)����ei��Vʎ�J�B��ԝ}Q6����h�1����F &jx2���=8N&���9w� This premier institution of higher learning was established in 1908 and is now a university system composed of eight constituent universities and one autonomous college spread throughout 17 campuses in the archipelago. " 0000004283 00000 n 1995. Infested seeds are less nutritious and unfit for humans. Shalom Applebaum, The Robert H. Smith Faculty of Agriculture, Food and Environment Its colour is usually pale or dark brown and it has a conspicuous swollen abdomen more apparent in female loaded with eggs. The threshold of development is at 7°C, and the development of a generation requires 560 day-degrees. 1958 0 obj <>stream 0000006482 00000 n Sison, M.L.J. These OBPs and CSPs exhibited differential expression characteristics in antennae. Crop protection 14: 439-443. Horticultural practices: Intercropping with cereals and early harvesting of legumes, before pest attack. ", "Life cycle of Callosobruchus chinensis L. and its resistance to mungbean (Vigna radiata)", "Integrated pest management: learning from experience, Pest Management Council of the Philippines, Inc., College, Laguna (Philippines).- College, Laguna (Philippines): PMCP, 1994. p. 39".

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