© Global Journal Of Agricultural Sciences . 2003. Vol. 2 No. 1
Publisher: Bachudo Science Co. Ltd
Notes On The Biology of Oryctes Monoceros (OLIV.) A Pest of Palms In Nigeria
D. A. Ukeh, E. J. Usua, S. B. A. Umoetok
KEYWORDS: Oryctes monoceros, Oviposition, Larvae, Pupation, Moulting
ABSTRACT:Studies on the biology of the rhinoceros beetle, Oryctes monoceros Oliv. was conducted in thelaboratory. 0. monoceros has 3 larval instars. In the mean the egg stage lasted 11, the larval stages 75.6, the pupal stage 15.5 and the adults stage 51.6 days. The mean developmental period from egg to adult for O. nwnoceros was 145 days. The beetle lives for about 5 months of which betwe.en 2-3 months are spent as a larva.
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