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Articles containing the keyword 'seed borer biology'
Category : Research note
article id 624,
category
Research note
Hashim Ali El Atta.
(2000).
Effect of diet and seed pretreatment on the biology of Bruchidius uberatus (Coleoptera, Bruchidae).
Silva Fennica
vol.
34
no.
4
article id 624.
https://doi.org/10.14214/sf.624
Abstract |
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Diet significantly (P < 0.0001) affected fecundity of Bruchidius uberatus Fahraeus. Provision of 1% sugar solution increased fecundity from 15 eggs/female to 47. Furthermore, sugar solution prolonged significantly the oviposition period of B. uberatus from one week to two weeks. Diet also significantly (P < 0.0001) increased adult longevity. Mean adult longevity recorded was 3, 7 and 13 days in control, water and sugar treatments, respectively. Seed pretreatment had a highly significant impact on the various developmental stages of B. uberatus. Maximum egg hatchability occurred in non-husked Acacia nilotica (L.) Willd. ex Del. seeds (83%), moderate in de-husked seeds (74%) and least in seeds presoaked in concentrated sulphuric acid (42%). The frequency of larvae that developed successfully into pupae was greatest in non-husked seeds (72%), nevertheless in de-husked and acid pretreated seeds, absolutely no larvae developed into pupae and hence the adult stage was not reached in these two treatments. Thus, de-husking and acid pretreatment of A. nilotica seeds is highly recommended.
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El Atta,
University of Khartoum, Faculty of Forestry, Department of Forest Conservation and Protection, Shambat, Sudan
E-mail:
hashimelatta@yahoo.com
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