This larval competition confers an advantage on females that disperse eggs uniformly. Laboratory rearing of the active phase of callosobruchus. Dec 31, 2014 a laboratory study was conducted to investigate the effects of natural products on the reproduction and damage of callosobruchus maculatus, the cowpea weevil, on cowpea seeds at botswana college of agriculture in gaborone, botswana. Callosobruchus maculatus has a karyotype of ten chromosome pairs 2n20. Bruchidae, is a worldwide insect pest that infests pulses in the fields and seeds in storage. 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. The cowpea seed beetle, callosobruchus maculatus fab.
Pdf effectiveness of spinosad naturalytes in controlling. Effect of the infection of callosobruchus maculatus fab. Biology i labbean beetle report biology i lab 31 january. Callosobruchus maculatus is a species of beetles known commonly as the cowpea weevil or cowpea seed beetle. Callosobruchus maculatus fabricius taxonomic placing. A handbook on bean beetles, callosobruchus maculatus. 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. Coleopterabruchinae is a major pest of cowpea in the sahel. Callosobruchus maculatus exploration of the deciding. Callosobruchus maculatus is a major pest of beans storage. Get details about the different stages of the bean beetle life cycle along with tips for successfully culturing the creatures. Males have spines on their intromittent organs that puncture the female reproductive tract, and females kick their mates during copulation. Ests were recently produced from the larval midgut of the cowpea weevil callosobruchus maculatus, 73 allowing further comparison among these three phytophagous species. The evolution of oviposition tactics in the bean weevil.
Callosobruchus maculatus, stored cowpea, methanolic extracts insecticidal plant, pollination introduction view at starvation and undernourishment and 33% of children suffer from chronic malnutrition 1, 2. Efforts are being made by the government in order to increase agricultural production, but selfsufficiency. Ambayeba muimbakankolongo, in food crop production by smallholder farmers in southern africa, 2018. Understanding how these beetles grow will help your students understand why these insects are agricultural pests in a large part of the world. Essential oils residual effects on callosobruchus maculatus coleoptera. 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. Callosobruchus chinensis, the pulse beetle zoology for. They bite holes in the grains to enter inside and feed on kernel, damaging several grains in the process. The copulatory behavior of the bruchid beetle callosobruchus maculatus may reflect a sexual conflict over copulation duration. Bruchidae to test whether they conform to predictions of an optimality model. Pronunciation of callosobruchus maculatus with 2 audio pronunciations, 1 meaning and more for callosobruchus maculatus. Effects of gammaradiation on the biology and on the ovary of. Bruchidae survival and female reproduction and cowpea seed germination volume 25 issue 2 g.
In this study, we examined the toxicity and persistence of ground fresh leaves of b. General information about callosobruchus maculatus calsma. Alternation of cowpea genotypes affects the biology of. The biological control of callosobruchus maculatus fabricius. Life cycle and hostes of callosobruchus maculatus coleoptera. Bean beetle genome about bean beetle genome sequence. They were used in fumigation to investigate their absorption by cowpea, vigna unguiculata seeds during treatment and their residual effects on adult callosobruchus maculatus fabricius survival and female reproduction, and seed germination.
Merci pour votre participation active et meilleurs voeux pour microbiologie et pathologie infectieuse. This species is very interesting in the fact that adult beetles have no need for food or water as their short lifespan of one to two weeks is spent mating and laying eggs. Fifty grams of each plant product garlic, peppermint and. Pdf article provides a summary of the biology the bruchids, their damage and how they can controlled in mungbean find, read and cite all. There are a number of species of callosobruchus that may be found attacking pulses, of which the most common and well known is c. The life cycle consisted of egg, four larval instars l 1, l 2, l 3 and l 4, pupa and adult. Semiochemical modulation of host preference of callosobruchus. The female grubs shows an oviposition period, with an average of duration, of 10. Life cycle of bean beetles, callosobruchus maculatus. The effect of alternation of cowpea genotypes, susceptible s and resistant r, on the biology of c. Olfactory and ovipositional preference of two strains of callosobruchus chinensis. Pdf origin and evolutionary history of the cosmopolitan insect pest. Origin and evolutionary history of the cosmopolitan insect pest callosobruchus maculatus l coleoptera, bruchinae.
The genus callosobruchus was formerly in the family bruchidae common name. Cowpea, callosobruchus maculatus, bruchidius atrolineatus. Novel ovipostion discussion like comment share in this experiment it was speculated if c. We created inbred lines by carrying out fullsib matings for 5 generations. Bruchidae, is a cosmopolitan fieldtostore pest ranked as the principal postharvest pest of cowpea in the tropics. Adaptation of a callosobruchus maculatus strain to vicia faba, as its. The morphometric measurements revealed that the average length and breadth of egg were 0. Oviposition decisions in the seed beetle, callosobruchus. A study on mortality of callosobruchus chinensis l. Pdf seedcoat colour affects oviposition in the bean. Boric acid toxicity to the german cockroach, blattella germanica.
Poorani abstract pulse beetle, callosobruchus maculatus f. Each seed is a discrete resource package,so that much of the biology of seed beetles is similar to the biology of parasitoids. 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. Walp, is one of the five most important legumes in the tropics and provides the protein for most people in the region and nitrogen to the soils duke, 1990. There was no difference in numbers of eggs laid in between the two mating opportunities 48 h between females of the three experimental groups anova. Studies on the life history and ovi positional preference of. This common pest of stored legumes has a cosmopolitan distribution, occurring on every continent except antarctica. Bean beetles, also known as callosobruchus maculatus, are agricultural pests, fox c. A taxonomic genus within the family chrysomelidae certain of the bean weevils. A pest of pulses, cowpea, soybean, gram, pigeon pea, lablab etc. A nochoice test was carried out in a completely randomized design. Cosmopolitan, probably of west africa origin, whence it was distributed around the globe with the trade in legumes. Effect of experience on host preference in callosobruchus.
Pdf morphometric identification of cowpea weevil populations. Essential oils were extracted by steam distillation from cymbopogon nardus, cymbopogon schoenanthus and ocimum basilicum. These weevils cause loss of quality, quantity and seed viability. We studied response of callosobruchus maculatus to odors of three legume seeds. The duration of the different states of the cowpea weevils, callosobruchus maculatus f. Pdf evolution of host acceptability and suitability in. As the beetles can actively fly, the infestation can start in the. One mendelian trait has been described for bean beetles, body color which is autosomal and has alleles with incomplete dominance. 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. Biology i lab 31 january 2017 bean beetles callosobruchus maculatus bean preference for oviposition of larvae abstract. 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. Bambara groundnut seeds are liable to a simultaneous attack by two species of bruchidae, callosobruchus subinnotatus pic and particularly by callosobruchus maculatus f. Variations in body size and some life history traits among callosobruchus maculatus fab.
They are most prevalent in africa and southeast asia. Callosobruchus maculatus bean beetle by alissa walens on. Some aspects of the biology and control of the cowpea weevil. Experiments using naive females established differences in host specificity among geographic strains of the seed beetlecallosobruchus maculatus. Nnatural incidence of bruchid parasitoid dinarmus sp. Copulation duration of the second male did not have a significant effect on p2 in the p2 experiment in a glm, using binomial errors of the number of. View callosobruchus maculatus research papers on academia. Effects of gammaradiation on the biology and on the ovary. Callosobruchus maculatus an overview sciencedirect topics. The biological control of callosobruchus maculatus. Heritable variation in body size is well described fox et al. International journal of tropical insect science, vol.
The genus callosobruchus was formerly in the family bruchidae. It is in the subfamily bruchinae, the bean weevils. Laboratory rearing of active phase of callosobruchus 587 discussion from the present study it is obvious that active i. Control of cowpea weevil, callosobruchus maculatus f. Some aspects of the biology of callosobruchus maculatus f. Bean beetles, callosobruchus maculates, are agricultural pests that attack legumes. Callosobruchus maculatus calsmaoverview eppo global database.
An investigation has been conducted on the life history and ovipositional preference of callosobruchus maculatus reared on five different pulses. The beetle most likely originated in west africa and moved around the globe with the trade of. Polymorphism and ecological reactions in callosobruchus. It causes substantial quantitative and qualitative losses manifested by seed perforation and reductions in weight, market value and germination ability of seeds 7. Callosobruchus is a genus of beetles in the family chrysomelidae, the leaf beetles. However, the weevils discriminated among the cultivars in fourchoice tests and showed. It causes substantial quantitative and qualitative losses manifested by seed perforation and reductions in weight, market value and germination ability of seeds. Studies on the life history and ovi positional preference.
Adults of most species known from stored pulses may be identified using the bruchid key in haines 1991. Introduction to bean beetles invasive insect species threaten ecosystems throughout the world as a consequence of global climate change. Essential oils residual effects on callosobruchus maculatus. Effects of gammaradiation on the biology and on the ovary of the cowpea weevil, callosobruchus maculatus f. Reduction of postharvest loss caused by callosobruchus maculatus f. Pdf on nov 26, 2019, qianquan chen and others published seedcoat colour affects oviposition in the bean beetle, callosobruchus maculatus coleoptera. Dec 31, 2014 the cowpea weevil, callosobruchus maculatus f. Other common names include the pulse beetle, chinese bruchid and cowpea bruchid. Cosmopolitan, probably of west africa origin, whence it was distributed around the globe with the trade in legumes host plants. Biology and morphometric measurement of cowpea weevil.
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