Seed Coats of Cowpeas Affect Oviposition and Larval Development of
Callosobruchus maculatus1

Nwanze, Kanayo F.; Horber, E.

doi:10.1093/ee/5.2.213

Cited by 79 publications

(40 citation statements)

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“…The legume seeds (cowpea, chickpea etc) with smooth seed coats were more susceptible to C. maculatus as compare to those varieties which had rough seed coats [17]. The bruchid of legume seeds lay eggs in little amount on rough seed coated varieties as compare to smooth seed coated varieties [18]. Usually large size legume seeds are more favorable hosts of cowpea weevil than small size seeds, but in chickpea seeds, thickness of the seed coat is a major physical character that affect to attack of cowpea weevil rather than the size of the seeds [19].…”

Section: Resultsmentioning

confidence: 97%

Assessment of susceptibility in local chickpea varieties by the cowpea weevil, callosobruchus maculatus (Coleoptera: Bruchidae)

Kouser

Saleh

Mal

et al. 2017

PAB

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Chickpea is an important pulse food that fulfills the requirement of the staple food. Callosobruchus maculatus (cowpea weevil) is the most important destructive pest that causes severe economic losses in quantity and nutritional quality. The present work is on the susceptibility of cowpea weevil on four main varieties of chickpea of Pakistan (KP-8mm, KC12mm, KE-9mm and Desi kala chana). The study was conducted for a period of four months from September to December 2015, under room conditions at moderate temperature of 27±2 °C and 60±5% relative humidity with12 hour light and dark cycle to produce many generations of cowpea weevil. Ten pairs of newly emerged adults were released in plastic jars having 100 gram of each of four varieties. All the varieties were checked after the interval of fifteen days to observe the intensity of seed damage by the C. maculatus. The highest consumption was observed in KP-8 mm and KC-12 mm 85gm, 79gm respectively, while KE-9 mm showed relatively low consumption that was 71gm, and Desi kala chana was least consumed 62gm by cowpea weevil. The susceptible varieties exhibited soft, moreover, smooth seed coat and white in colour whereas least susceptible had hard and wrinkled seed coat. Based on present observation, it is noted that by growing tolerant varieties infestation of chickpea by cowpea weevil can be limited.

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Section: Resultsmentioning

confidence: 97%

Assessment of susceptibility in local chickpea varieties by the cowpea weevil, callosobruchus maculatus (Coleoptera: Bruchidae)

Kouser

Saleh

Mal

et al. 2017

PAB

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“…Only a few species of wild leguminosae are capable of being attacked by this genus (Southgate, 1979). Both physical (Nwanze and Horber, 1976;Thiery, 1984) and chemical (Janzen et al, 1976;Janzen, 1977;Dobie et al, 1979;Gatehouse et al, 1979;Schoonhoven et al, 1983) factors have been shown to confer resistance to bruchid attacks in leguminosae. The variation in oviposition responses between the genotypes in this study may have been influenced by seed size and surface texture.…”

Section: Discussionmentioning

confidence: 99%

Variation in susceptibility of some Vigna taxa to infestation by Callosobruchus rhodesianus (Pic.) (Coleoptera: Bruchidae)

Giga

Moyo

1992

Int. J. Trop. Insect Sci.

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Sixteen taxa in the genus Vigna were compared for susceptibility to attack by Callosobruchus rhodesianus (Pic.) under laboratory conditions. Ovipositional response, adult emergence and their development periods differed significantly between the species. Although oviposition took place on all the Vigna taxa at varying levels, the bruchid was unable to develop successfully on four of the 16 taxa Investigated. V. vexiUata var. angustifolia, V. vexillata var. vexillata, V, oblongifolia and V. luteola were resistant to attack. Resume-La susceptibility de seize especes de haricot du genre Vigna a l'infestation par le charancon Callosobruchus rhodesianus a ete £tudiee au laboratoire. L'oviposition, l'eclosion des oeufs ainsi que la durie totale du developpement ont varie en fonction de l'espece de haricot. Bien que l'oviposition a iti enregistree pour toutes les especes, quatre ont cependant empeche tout developpement ulterieur. Les especes V. vexillata var. angustifolia, V. vexillata var. vexillata, V. oblongifolia and V. luteola se sont montries resistantes a l'attaque de ce charancpn.

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“…Suitability of cowpea seed types for C. maculatus oviposition is known to be influenced by surface area and curvature of the seeds, amongst other factors (Avidov et ai, 1965;Nwanze and Horber, 1976;Wasserman, 1981;Fitzner et al, 1985). Thus, the larger surface area provided by the cheek might partly explain its much heavier egg load.…”

Section: Discussionmentioning

confidence: 99%

Callosobruchus maculatus (Fabricius) (Coleoptera: Bruchidae) oviposition behaviour on cowpea seeds

Ofuya

1987

Int. J. Trop. Insect Sci.

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Egg distribution on cowpea seeds and the influence of seed population on extent of oviposition by Callosobruchus maculatus (F.) were investigated in this study. Majority of the eggs were laid on the cheek of the cowpea seeds. The number of eggs laid by females increased with increase in seed population. The results are discussed in relation to observations on oviposition behaviour of C. maculatus reported by earlier workers.

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Seed Coats of Cowpeas Affect Oviposition and Larval Development of Callosobruchus maculatus1

Cited by 79 publications

References 0 publications

Assessment of susceptibility in local chickpea varieties by the cowpea weevil, callosobruchus maculatus (Coleoptera: Bruchidae)

Assessment of susceptibility in local chickpea varieties by the cowpea weevil, callosobruchus maculatus (Coleoptera: Bruchidae)

Variation in susceptibility of some Vigna taxa to infestation by Callosobruchus rhodesianus (Pic.) (Coleoptera: Bruchidae)

Callosobruchus maculatus (Fabricius) (Coleoptera: Bruchidae) oviposition behaviour on cowpea seeds

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