The female grubs shows an oviposition period, with an average of duration, of 10. Effects of gammaradiation on the biology and on the ovary. Pdf seedcoat colour affects oviposition in the bean. Callosobruchus maculatus causes major loses in storage.
They are most prevalent in africa and southeast asia. Beck department of biology, emory university christopher. Life cycle of bean beetles, callosobruchus maculatus coleoptera. Other common names include the pulse beetle, chinese bruchid and cowpea. The biological control of callosobruchus maculatus. Callosobruchus maculatus bean beetle by alissa walens on.
The damage caused by callosobruchus maculatus on cowpea. It causes substantial quantitative and qualitative losses manifested by seed perforation and reductions in weight, market value and germination ability of seeds. Diet affects female mating behaviour in a seedfeeding beetle. A pest of pulses, cowpea, soybean, gram, pigeon pea, lablab etc. Callosobruchus maculatus is a species of beetles known commonly as the cowpea weevil or cowpea seed beetle.
Influence of temperature and humidity on populations of. Although it is commonly known as the adzuki bean weevil it is in fact not a true weevil, belonging instead to the leaf beetle family, chrysomelidae. The biopesticide spinosad controls many insect pests of storedfood products. Whenever two or more eggs are on a bean, development takes 40 days rather than 33 days, and only 8% of the second eggs develop even in beans with resources enough for two larvae. Chrysomelidae article pdf available in annales zoologici fennici 5616. Bean beetle genome about bean beetle genome sequence.
Efficacy of two plant powders as cowpea grain protectants against. The morphometric measurements revealed that the average length and breadth of egg were 0. Callosobruchus maculatus attacks pulses or legumes. Bruchidae and its parasitoid dinarmus basalis pteromalidae in two climatic zones of burkina faso volume 86 issue 6 p. Bambara groundnut seeds are liable to a simultaneous attack by two species of bruchidae, callosobruchus subinnotatus pic and particularly by callosobruchus maculatus f. Biology and morphometric measurement of cowpea weevil. Nnatural incidence of bruchid parasitoid dinarmus sp. Callosobruchus maculatus has a karyotype of ten chromosome pairs 2n20. The sequence data are for a laboratory strain of callosobruchus maculatus that as been reared on mung beans vigna radiata for more than 20 years more than 200 generations.
Phytochemical screening and biological activities of. Many beetles in the genus are well known as economically important pests that infest stored foodstuffs these beetles specialize on legumes of the tribe phaseoleae, which includes many types of beans used for food. Cosmopolitan, probably of west africa origin, whence it was distributed around the globe with the trade in legumes. Control of cowpea weevil, callosobruchus maculatus f. Download fulltext pdf seedcoat colour affects oviposition in the bean beetle, callosobruchus maculatus coleoptera. Introduction to bean beetles invasive insect species threaten ecosystems throughout the world as a consequence of global climate change. This larval competition confers an advantage on females that disperse eggs uniformly. Callosobruchus maculatus an overview sciencedirect topics.
Reduction of postharvest loss caused by callosobruchus maculatus f. The effect of alternation of cowpea genotypes, susceptible s and resistant r, on the biology of c. Blumer, professor of biology, morehouse college excerpted from a handbook on bean beetles, callosobruchus maculatus. The factors tested were beans from four cowpea cultivars and seven different nitrogen sources. Coleoptera is a major pest of stored blackgram, greengram, cowpea and other pulse grains. There are a number of species of callosobruchus that may be found attacking pulses, of which the most common and well known is c. Callosobruchus chinensis is a common species of beetle found in the bean weevil subfamily, and is known to be a pest to many stored legumes.
Oviposition decisions in the seed beetle, callosobruchus. In the laboratory, spinosad caused high mortality of adult c. Pdf on jun 6, 2019, khadim kebe and others published origin and evolutionary history of the cosmopolitan insect pest callosobruchus maculatus l coleoptera, bruchinae. Insect resistance management for stored product pests. These weevils cause loss of quality, quantity and seed. They bite holes in the grains to enter inside and feed on kernel, damaging several grains in the process. Heritable variation in body size is well described fox et. Biological control of bruchid callosobruchus maculatus f. Olfactory and ovipositional preference of two strains of callosobruchus chinensis. The life cycle consisted of egg, four larval instars l 1, l 2, l 3 and l 4, pupa and adult. Comparative studies on the biology of callosobruchus. Novel ovipostion discussion like comment share in this experiment it was speculated if c.
Bruchidae article pdf available january 2006 with 2,236 reads how we measure reads. The beetle most likely originated in west africa and moved around. An endemic parasitoid, the pteromalid dinarmus basalis rond. Insecticidal activity of 2tridecanone against the cowpea. In nigeria, there are limited reports in the literature on the biology. Callosobruchus maculatus fabricius develops in the seeds of vigna unguiculata. Callosobruchus maculatus fabricius taxonomic placing. Callosobruchus chinensis, the pulse beetle zoology for. Ambayeba muimbakankolongo, in food crop production by smallholder farmers in southern africa, 2018. Adults of most species known from stored pulses may be identified using the bruchid key in haines 1991. Life cycle of bean beetles, callosobruchus maculatus. General information about callosobruchus maculatus calsma.
A handbook on bean beetles, callosobruchus maculatus. This common pest of stored legumes has a cosmopolitan distribution, occurring on every continent except antarctica. Susceptibility of callosobruchus maculatus coleoptera. Hymenoptera have been recorded in the stored blackgram seeds and also at field level. Bruchidae, is a cosmopolitan fieldtostore pest ranked as the principal postharvest pest of cowpea in the tropics. Experimental confirmation of bean preference for callosbruchus maculatus females tyler bayles, radaya ellis, jocelyn kopac, zach zimmerman department of biology, university of wisconsin whitewater abstract the purpose of this study is determine the existence or lack of bean preference in callosobruchus maculatus. Influence of temperature and humidity on populations of callosobruchus maculatus coleoptera. Effectiveness of spinosad naturalytes in controlling the.
It is a field to store pest, ranked as the principal postharvest pests of stored pulses, with a cosmopolitan distribution. Each seed is a discrete resource package,so that much of the biology of seed beetles is similar to the biology of parasitoids. Bruchidae to test whether they conform to predictions of an optimality model. We created inbred lines by carrying out fullsib matings for 5 generations. When the seeds containing the parasitized or non parasitized larvae were exposed to dmds, the lc50 of c. African farmers often introduce essential oils into granaries at harvest time. Callosobruchus is a genus of beetles in the family chrysomelidae, the leaf beetles.
Effects of gammaradiation on the biology and on the ovary of the cowpea weevil, callosobruchus maculatus f. In this study, the population growth of callosobruchus maculatus reared on beans from four cowpea cultivars fertilized with different nitrogen sources was evaluated. Laboratory and field trials were carried out to determine the efficacy of this pesticide against the cowpea weevil, callosobruchus maculatus f. Beck, professor of pedagogy, emory university, and lawrence s. It is in the subfamily bruchinae, the bean weevils. Pdf life history of flight morph females of callosobruchus. Cosmopolitan, probably of west africa origin, whence it was distributed around the globe with the trade in legumes host. The duration of the different states of the cowpea weevils, callosobruchus maculatus f. Infestazioni di ips acuminatus gyllenhal coleoptera scolytinae in pinete del cadore.
Pronunciation of callosobruchus maculatus with 2 audio pronunciations, 1 meaning and more for callosobruchus maculatus. Callosobruchus maculatus, cowpea, 2tridecanone, pilocarpus microphyllus. Biology i lab 31 january 2017 bean beetles callosobruchus maculatus bean preference for oviposition of larvae abstract. Bruchidae, the main storage pest of cowpea, vigna unguiculata, walp, in west africa. Susceptibility of the bruchid callosobruchus maculatus. Alternation of cowpea genotypes affects the biology of. Bruchidae, can cause up to 100% yield loss of harvested cowpea seeds in a few months in storages in west africa lienard and seck 1994. Polymorphism and ecological reactions in callosobruchus. The genus callosobruchus was formerly in the family bruchidae. Observations on the ecology of bruchidius atrolineatus pic. One mendelian trait has been described for bean beetles, body color which is autosomal and has alleles with incomplete dominance.
Pdf origin and evolutionary history of the cosmopolitan. Genetic variation in adaptation to foodplants among. A handbook on bean beetles, callosobruchus maculatus christopher w. The genus callosobruchus was formerly in the family bruchidae common name. A study on mortality of callosobruchus chinensis l. However, the weevils discriminated among the cultivars in four. The evolution of oviposition tactics in the bean weevil. Bean beetles, callosobruchus maculates, are agricultural pests that attack legumes. Pdf article provides a summary of the biology the bruchids, their damage and how they can. It is a member of the leaf beetle family, chrysomelidae, and not a true weevil. Chromosome 10 is a sex chromosome and males are the hetergametic sex figure 3. View callosobruchus maculatus research papers on academia. There was no adult emergence when the seeds containing the developmental stages were exposed to 5.
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