However, the weevils discriminated among the cultivars in four. Hymenoptera have been recorded in the stored blackgram seeds and also at field level. Each seed is a discrete resource package,so that much of the biology of seed beetles is similar to the biology of parasitoids. Susceptibility of the bruchid callosobruchus maculatus. Insecticidal activity of 2tridecanone against the cowpea. Effectiveness of spinosad naturalytes in controlling the. In this study, the population growth of callosobruchus maculatus reared on beans from four cowpea cultivars fertilized with different nitrogen sources was evaluated.
Alternation of cowpea genotypes affects the biology of. Control of cowpea weevil, callosobruchus maculatus f. The beetle most likely originated in west africa and moved around. Effects of gammaradiation on the biology and on the ovary of the cowpea weevil, callosobruchus maculatus f. Insect resistance management for stored product pests. The duration of the different states of the cowpea weevils, callosobruchus maculatus f. Pronunciation of callosobruchus maculatus with 2 audio pronunciations, 1 meaning and more for callosobruchus maculatus. Biology i lab 31 january 2017 bean beetles callosobruchus maculatus bean preference for oviposition of larvae abstract. One mendelian trait has been described for bean beetles, body color which is autosomal and has alleles with incomplete dominance. Nnatural incidence of bruchid parasitoid dinarmus sp. They are most prevalent in africa and southeast asia.
Adults of most species known from stored pulses may be identified using the bruchid key in haines 1991. Bruchidae and its parasitoid dinarmus basalis pteromalidae in two climatic zones of burkina faso volume 86 issue 6 p. The effect of alternation of cowpea genotypes, susceptible s and resistant r, on the biology of c. 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. Bruchidae to test whether they conform to predictions of an optimality model. Bean beetles, callosobruchus maculates, are agricultural pests that attack legumes.
Pdf life history of flight morph females of callosobruchus. 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. 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. Beck department of biology, emory university christopher. The factors tested were beans from four cowpea cultivars and seven different nitrogen sources. View callosobruchus maculatus research papers on academia. In the laboratory, spinosad caused high mortality of adult c. Beck, professor of pedagogy, emory university, and lawrence s. 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. 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. Efficacy of two plant powders as cowpea grain protectants against. A handbook on bean beetles, callosobruchus maculatus. The female grubs shows an oviposition period, with an average of duration, of 10. It is a member of the leaf beetle family, chrysomelidae, and not a true weevil.
African farmers often introduce essential oils into granaries at harvest time. Other common names include the pulse beetle, chinese bruchid and cowpea. Bruchidae, is a cosmopolitan fieldtostore pest ranked as the principal postharvest pest of cowpea in the tropics. Bruchidae article pdf available january 2006 with 2,236 reads how we measure reads. A pest of pulses, cowpea, soybean, gram, pigeon pea, lablab etc. Bruchidae is a tropical beetle that develops in the seeds of vigna. The morphometric measurements revealed that the average length and breadth of egg were 0. Bruchidae, the main storage pest of cowpea, vigna unguiculata, walp, in west africa. Chromosome 10 is a sex chromosome and males are the hetergametic sex figure 3.
Callosobruchus maculatus fabricius develops in the seeds of vigna unguiculata. Pdf on jun 6, 2019, khadim kebe and others published origin and evolutionary history of the cosmopolitan insect pest callosobruchus maculatus l coleoptera, bruchinae. Oviposition decisions in the seed beetle, callosobruchus. Phytochemical screening and biological activities of. Callosobruchus maculatus causes major loses in storage.
They bite holes in the grains to enter inside and feed on kernel, damaging several grains in the process. The biopesticide spinosad controls many insect pests of storedfood products. Reduction of postharvest loss caused by callosobruchus maculatus f. The biological control of callosobruchus maculatus. Cosmopolitan, probably of west africa origin, whence it was distributed around the globe with the trade in legumes. Genetic variation in adaptation to foodplants among. Effects of gammaradiation on the biology and on the ovary.
The life cycle consisted of egg, four larval instars l 1, l 2, l 3 and l 4, pupa and adult. Diet affects female mating behaviour in a seedfeeding beetle. The damage caused by callosobruchus maculatus on cowpea. Influence of temperature and humidity on populations of. Blumer, professor of biology, morehouse college excerpted from a handbook on bean beetles, callosobruchus maculatus.
There are a number of species of callosobruchus that may be found attacking pulses, of which the most common and well known is c. Life cycle of bean beetles, callosobruchus maculatus coleoptera. Callosobruchus maculatus is a species of beetles known commonly as the cowpea weevil or cowpea seed beetle. Download fulltext pdf seedcoat colour affects oviposition in the bean beetle, callosobruchus maculatus coleoptera. Pdf seedcoat colour affects oviposition in the bean.
Introduction to bean beetles invasive insect species threaten ecosystems throughout the world as a consequence of global climate change. An endemic parasitoid, the pteromalid dinarmus basalis rond. Coleoptera is a major pest of stored blackgram, greengram, cowpea and other pulse grains. In nigeria, there are limited reports in the literature on the biology. Callosobruchus maculatus attacks pulses or legumes. Pdf origin and evolutionary history of the cosmopolitan.
The genus callosobruchus was formerly in the family bruchidae common name. Susceptibility of callosobruchus maculatus coleoptera. These weevils cause loss of quality, quantity and seed. When the seeds containing the parasitized or non parasitized larvae were exposed to dmds, the lc50 of c. A handbook on bean beetles, callosobruchus maculatus christopher w. This common pest of stored legumes has a cosmopolitan distribution, occurring on every continent except antarctica. It is a field to store pest, ranked as the principal postharvest pests of stored pulses, with a cosmopolitan distribution. Life cycle of bean beetles, callosobruchus maculatus. Biology and morphometric measurement of cowpea weevil. Callosobruchus is a genus of beetles in the family chrysomelidae, the leaf beetles.
Some aspects of the biology and control of the cowpea weevil. Callosobruchus maculatus has a karyotype of ten chromosome pairs 2n20. A study on mortality of callosobruchus chinensis l. Pdf article provides a summary of the biology the bruchids, their damage and how they can. Callosobruchus maculatus an overview sciencedirect topics. Chrysomelidae article pdf available in annales zoologici fennici 5616. It is in the subfamily bruchinae, the bean weevils. We created inbred lines by carrying out fullsib matings for 5 generations. Bean beetle genome about bean beetle genome sequence. 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. Callosobruchus maculatus fabricius taxonomic placing. Influence of temperature and humidity on populations of callosobruchus maculatus coleoptera. Olfactory and ovipositional preference of two strains of callosobruchus chinensis. Observations on the ecology of bruchidius atrolineatus pic.
General information about callosobruchus maculatus calsma. Callosobruchus chinensis, the pulse beetle zoology for. This larval competition confers an advantage on females that disperse eggs uniformly. 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. Laboratory and field trials were carried out to determine the efficacy of this pesticide against the cowpea weevil, callosobruchus maculatus f. It causes substantial quantitative and qualitative losses manifested by seed perforation and reductions in weight, market value and germination ability of seeds. Heritable variation in body size is well described fox et. Biological control of bruchid callosobruchus maculatus f. Callosobruchus maculatus bean beetle by alissa walens on. The evolution of oviposition tactics in the bean weevil. Infestazioni di ips acuminatus gyllenhal coleoptera scolytinae in pinete del cadore.
Comparative studies on the biology of callosobruchus. Bean beetles, also known as callosobruchus maculatus, are agricultural pests, fox c. Ambayeba muimbakankolongo, in food crop production by smallholder farmers in southern africa, 2018. Cosmopolitan, probably of west africa origin, whence it was distributed around the globe with the trade in legumes host. Polymorphism and ecological reactions in callosobruchus.