Chelisoches Moris F. (Forficulidae: Dermaptera), A Predator on Eggs and Early Instar Grubs of the Red Palm Weevil Rhynchophorus Ferrugineus F. (Curculionidae: Coleoptera)
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Date
1973
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Abstract
Rhynchophorus ferrugineus F, is a serious pest of the coconut palm. No effective biological control agent of this pest has been reported so far. Chelisoches moris F, a species of earwig, is commonly met with on the crown of coconut palms infested by red weevil. Its life history and feeding habits on the eggs and early instar grubs of red palm weevil were studied. Eggs are laid in clusters, The average incubation period was 6· 5 days. There were four nymphal instars and the average total nymphal period was 45. 6 days. The adults lived for 66.8 days and the total life cycle lasted for 69-153 days. On an average one·earwig in its life period consumed as many as 662.4 eggs or 633· 5 early instar grubs.
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chelisoches Moris, red palm weevil, rhynchophorus ferrugineus, predator, early instar grubs, eggs
Citation
Journal of Plantation Crops Vol.1 1973,Proceedings of the First National Symposium on Plantation Crops, pp.147-152