The effect of 2tridecanone vapor on the cowpea weevil callosobruchus maculatus development was determined. Callosobruchus maculatus calsmaoverview eppo global database. 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. 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. 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. Coleoptera is a major pest of stored blackgram, greengram, cowpea and other pulse grains. Bruchidae, is a worldwide insect pest that infests pulses in the fields and seeds in storage. Poorani abstract pulse beetle, callosobruchus maculatus f. Adult callosobruchus beetles do not feed on stored produce, and are very shortlived, usually no more than 12 days under optimum conditions. Callosobruchus maculatus bean beetle by alissa walens on. Cosmopolitan, probably of west africa origin, whence it was distributed around the globe with the trade in legumes host plants. 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.
Reduction of postharvest loss caused by callosobruchus maculatus f. Susceptibility of three legume species to callosobruchus. The genus callosobruchus was formerly in the family bruchidae common name. The cowpea weevil, callosobruchus maculatus fabricius coleoptera. Insects free fulltext control of cowpea weevil, callosobruchus.
It is in the subfamily bruchinae, the bean weevils. Citescore values are based on citation counts in a given year e. Chrysomelidae article pdf available in annales zoologici fennici 5616. The genus callosobruchus was formerly in the family bruchidae. Detection of early stages of cowpea weevil infestation could assist farmers and storage facility managers in implementing suitable control practices for insect disinfestations. Callosobruchus is a genus of beetles in the family chrysomelidae, the leaf beetles. Pronunciation of callosobruchus maculatus with 2 audio pronunciations, 1 meaning and more for callosobruchus maculatus. Female seed beetles, callosobruchus maculatus, remate for.
Insecticidal activity of 2tridecanone against the cowpea. Among the multitude of male copulatory behaviors and reproductive traits are some that appear to be harmful to females. They bite holes in the grains to enter inside and feed on kernel, damaging several grains in the process. It causes substantial quantitative and qualitative losses manifested by seed perforation and reductions in weight, market value and germination ability of seeds. Use of commercial freezers to control cowpea weevil. This common pest of stored legumes has a cosmopolitan distribution, occurring on every continent except antarctica.
Callosobruchus maculatus bean beetle by alissa walens on prezi. Experiments using naive females established differences in host specificity among geographic strains of the seed beetlecallosobruchus maculatus. Get details about the different stages of the bean beetle life cycle along with tips for successfully culturing the creatures. The infestation of beetle after 120 days of treatment with higher of eucalyptus oil, castor oil and neem oil dose i. Three compounds, 18cineole, carvacrol, and eugenol, caused almost 100% adult mortality at doses as low as 5. Nnatural incidence of bruchid parasitoid dinarmus sp. Dec 31, 2014 the cowpea weevil, callosobruchus maculatus f. We examined whether such congenital differences affect the degree to which host preference can be modified by experience.
Comparative studies on the biology of callosobruchus. Rearing and identification of callosobruchus maculatus bruchidae. Alternation of cowpea genotypes affects the biology of. Similar levels of adult beetle mortality were achieved with the remaining five components. Diet affects female mating behaviour in a seedfeeding beetle. Why do male callosobruchus maculatus harm their mates. 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.
Control over copulation duration is a potentially important generator of sexual conflict that has received little empirical attention. The life cycle consisted of egg, four larval instars l 1, l 2, l 3 and l 4, pupa and adult. May 18, 2005 other examples come from the bruchid beetle callosobruchus maculatus and the dung fly sepsis cynipsea. Adults of most species known from stored pulses may be identified using the bruchid key in haines 1991. Chromosome 10 is a sex chromosome and males are the hetergametic sex figure 3. 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.
Effect on the emergence the emergence of adult beetles of c. Each seed is a discrete resource package,so that much of the biology of seed beetles is similar to the biology of parasitoids. A handbook on bean beetles, callosobruchus maculatus bean. Pdf efficacy of plant extracts against the cowpea beetle. Abstractfemale cowpea weevils, callosobruchus maculatus, produce a sex pheromcne thai. Heritable variation in body size is well described fox et al. These weevils cause loss of quality, quantity and seed viability. Fumigation toxicity of essential oil monoterpenes to. An investigation has been conducted on the life history and ovipositional preference of callosobruchus maculatus reared on five different pulses. Ests were recently produced from the larval midgut of the cowpea weevil callosobruchus maculatus, 73 allowing further comparison among these three phytophagous species. This species also is known as the southern cowpea weevil.
Coleoptera in chickpea article pdf available in journal of entomology and zoology studies 42. Studies on the life history and ovi positional preference of. The morphometric measurements revealed that the average length and breadth of egg were 0. It is recommended that it97k56818 and it98k12 cultivars be incorporated in the cowpea breeding programmes involving insect resistance. Understanding how these beetles grow will help your students understand why these insects are agricultural pests in a large part of the world. The evolution of oviposition tactics in the bean weevil. Observations on the ecology of bruchidius atrolineatus pic.
Aliyu umar department of biological sciences, bauchi state university, p. Life cycle of bean beetles, callosobruchus maculatus. Biology and morphometric measurement of cowpea weevil. Oviposition decisions in the seed beetle, callosobruchus. Control of cowpea weevil, callosobruchus maculatus f. Cowpea, callosobruchus maculatus, cultivars, tannin, saponin,seed coat it. Biological control of bruchid callosobruchus maculatus f. As the beetles can actively fly, the infestation can start in the. Bambara groundnut seeds are liable to a simultaneous attack by two species of bruchidae, callosobruchus subinnotatus pic and particularly by callosobruchus maculatus f. Empirical studies of behavioral processes were designed in a seed beetle, callosobruchus maculatus, to distinguish between two alternative tactical models, namely, comparison tactics and threshold tactics of seed choice, and also to deduce the behavioral rule of its oviposition decisions. Larval competition reduces body condition in the female seed. Callosobruchus maculatus fabricius, bruchidae seed beetle is a common postharvest pest of stored legumes in tropical and subtropical regions. The copulatory behavior of the bruchid beetle callosobruchus maculatus may reflect a sexual conflict over copulation duration.
We manipulated both food yeast and sugar and water. We created inbred lines by carrying out fullsib matings for 5 generations. View callosobruchus maculatus research papers on academia. Efficacy of plant extracts against the cowpea beetle, callosobruchus maculatus article pdf available in international journal of pest management 50. Life cycle and hostes of callosobruchus maculatus coleoptera. 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. Pdf seedcoat colour affects oviposition in the bean. Thus, availability of these goods in the environment seems to determine the importance of male seminal donations. The beetle most likely originated in west africa and moved around the globe with the trade of.
This larval competition confers an advantage on females that disperse eggs uniformly. General information about callosobruchus maculatus calsma. Damage caused by the bean bruchid, callosobruchus maculatus. Callosobruchus maculatus fabricius taxonomic placing. The effect of alternation of cowpea genotypes, susceptible s and resistant r, on the biology of c. 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. Behavioral processes and egglaying decisions of the bean. Fifty grams of each plant product garlic, peppermint and. Bruchinae, are agricultural pest insects of africa and asia that presently range throughout the tropical and subtropical world.
Two populations of the seedfeeding beetle callosobruchus maculatus, a species that produces relatively large nuptial gifts, are used to test whether female nutritional status affects mating behaviour. It is a member of the leaf beetle family, chrysomelidae, and not a true weevil. Males of both these species have spines on their intromittent organs that harm the female reproductive tract during mating and leave scars blanckenhorn et al. Effect of experience on host preference in callosobruchus. Female oviposition decisions and their impact on progeny. Callosobruchus maculatus is a species of beetles known commonly as the cowpea weevil or cowpea seed beetle.
One mendelian trait has been described for bean beetles, body color which is autosomal and has alleles with incomplete dominance. The female grubs shows an oviposition period, with an average of duration, of 10. The results of this study demonstrated fumigant toxicity of some essential oil components to c. Female access to water, sugar and yeast are manipulated and the. A pest of pulses, cowpea, soybean, gram, pigeon pea, lablab etc. There are a number of species of callosobruchus that may be found attacking pulses, of which the most common and well known is c. Other examples come from the bruchid beetle callosobruchus maculatus and the dung fly. Most downloaded journal of stored products research. Studies on the life history and ovi positional preference. Callosobruchus maculatus exploration of the deciding factor. Control of the bean weevil, callosobruchus maculatus coleoptera. 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.
Callosobruchus chinensis, the pulse beetle zoology for. Bean beetle genome about bean beetle genome sequence. 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. Full length research article callosobruchus maculatus. A handbook on bean beetles, callosobruchus maculatus. Males have spines on their intromittent organs that puncture the female reproductive. Detection of early stages of cowpea weevil infestation could assist farmers and. Cosmopolitan, probably of west africa origin, whence it was distributed around the globe with the trade in legumes.
Bruchidae, is a cosmopolitan fieldtostore pest ranked as the principal postharvest pest of cowpea in the tropics. The duration of the different states of the cowpea weevils, callosobruchus maculatus f. Novel ovipostion discussion like comment share in this experiment it was speculated if c. Bruchidae to test whether they conform to predictions of an optimality model.
Abulude et al 14 also found that there was no sign of oviposition during the storage except in the control. Callosobruchus maculatus an overview sciencedirect topics. Search sequences and the oviposition process of the female bruchid beetle were observed and recorded. A nochoice test was carried out in a completely randomized design. Potential of botanicals to control callosobruchus maculatus col. Effect of the infection of callosobruchus maculatus fab.
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