Adult longevity, fecundity and oviposition characteristics of Cylas puncticollis Boheman on sweet potatoes

The biological characteristics of Cylas puncticollis Boh. were studied on the aerial parts of an exotic sweet potato (Ipomea batatas L.) variety Kenya (SPNO) in the screenhouse at Chancellor College, Malawi from 1 July 1991 to 20 January 1992. The lifespan of males ranged from 97 to 194 days and tha...

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Bibliographic Details
Published in:African crop science journal 1997-12, Vol.5 (1)
Main Authors: Sathula, R.A, Logan, J.M, Munthali, D.C, Nyirenda, G.K.C
Format: Article
Language:English
Subjects:
Biologie du Cylas, Ipomea batatas, Malawi
Cylas biology, Ipomea batatas, Malawi
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Summary:The biological characteristics of Cylas puncticollis Boh. were studied on the aerial parts of an exotic sweet potato (Ipomea batatas L.) variety Kenya (SPNO) in the screenhouse at Chancellor College, Malawi from 1 July 1991 to 20 January 1992. The lifespan of males ranged from 97 to 194 days and that of females ranged from 53 to 213 days. The difference in the lifespan of adults between sexes was not significant. Fecundity of females ranged from 6 to 209 eggs. Oviposition occurred in vines and leaf petioles. There was no significant difference in oviposition between vines and leaf petioles, but it differed significantly (P
ISSN:1021-9730
2072-6589
2072-6589
DOI:10.4314/acsj.v5i1.27869