Monday, 27 October 2003
D0199

This presentation is part of : Display Presentations, Section Cf. Quantitative Ecology

Insects associated with Galia, Cucurbita mixta at Weija Southern Ghana

Ebenezer Adjedu, University of Ghana, Zoology Department, P.O.Box LG 67, Legon, Accra, Ghana and Langbong Bimi, University of Ghana, Zoology Department, P.O.Box LG 67, Legon, Accra, Ghana.

Some aspects of the biology of seven insects associated with Galia, Cucurbita mixta were studied on the private garden located on 24 legon hill, the Sinnas Garden, Faculty of Agriculture,Legon and at the Weija Irrigation Demonstration Farm near Accra. Methods involved collection, sampling, identification and general description of the insect samples. Of these seven insects, A. gosippii had an adult percentage emergence of 100%, followed in that order by L. Oblineatus, A.vitatium, M. cucurbitae and A. tristis which had emergence rates of 92%,90%,90.90%,88.50%,82.14% and 66.70% respectively. M. Cucurbitae had the highest longevity of 35.10+- 0.90 days whilst A gossypii had the lowest average longevity of 19.50 +- 0.17 days. Fecundity data in decreasing order for A. vitatium, D. Cucurbitae, D. nifidalis, L. oblineatus, M. cucurbitae and A. tritis were 92.80%, 81.10%, 77.10%, 73.70% and 62.50% respectively. It was further detected that A. gossypii probably reproduced vivipariosly as no eggs were found. Other insects such as A. tristis possessed no pupal stages. Development and growth of A. gossypii and D. nitidalis were also found to be contingent upon environmental condition such rainfall, temperature and humidity prevailing at that time.



Keywords: Cucurbita mixta, life history

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