Cob borer Mussidia nigrivenella (Lepidoptera: Pyralidae) of maize in Ivory Coast. I- Morphological and biological data
1992
Moyal, P. | Tran, M. (ORSTOM-IDESSA, Bouake (Cote d'Ivoire))
Mussidia nigrivenella Ragonot is the main cob borer of maize in Cote d'Ivoire. An accurate description of male and female genitalia is given. Rearing in the laboratory has permitted determination of the number and duration of the pre-imaginal instars, fecundity of adults and fertility of eggs as also the sex-ratio. An artificial diet has been elaborated which provides conditions of similar development to those observed in the field: The insect has 5 to 6 larval instars and the total duration of development from the egg-laying to the adult emergence is 46 for the male and 49 days for the female
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