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

Abstract

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.

Ability of ovipositing Callosobruchus maculatus females to discriminate between seeds bearing their own eggs and those bearing eggs of other females

“…Relatively few eggs are laid there by CrnaculatlcF (Ofuya, 1987). They were allowed to oviposit on the seeds for 24 h. After this period each seed would normally bear one to five eggs, and was subsequently used.…”

“…Mating may follow within a few minutes of adult emergence and oviposition can begin within an hour or two. Egg production increases with the number of host seeds available (Credland, 1986;Ofuya, 1987). Egg production increases with the number of host seeds available (Credland, 1986;Ofuya, 1987).…”

Genetic and chemical analyses of six cowpea and two Phaseolus bean species differing in resistance to weevil pest

“…Preference and non-preference tests were conducted according to Messina and Renwick (1985), antibiosis tests were conducted according to Van Emden (1987) and Ofuya (1987) and tolerance tests were conducted as described by Van Emden (1987) and Nakhla (1988). Seed resistance to cowpea weevil (Callosobruchus maculatus), has been explained in details previously (Obiadalla-Ali et al 2007).…”

Observations on the Biology of Callosobruchus maculatus (Fab.) (Coleoptera: Bruchidae) under Ambient Laboratory Conditions

“…Other workers have studied the oviposition behaviour and progeny development of C. maculatus and related pest species (Strong et. al;1968;Mitchell, 1975;Horber, 1975, 1976;Booker, 1967;Tun, 1979;Wasserman and Futuyma, 1981;Messina and Renwick, 1983;Wasserman, 1985;Giga and Smith, 1987;Ofuya, 1987;Barde et. al;2012).…”