Distribution and species composition of stemborers and their natural enemies in maize and sorghum in Ethiopia
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Date
2001-12
Authors
Kairu, E. W.
Getu, E.
Overholt, W. A.
Journal Title
Journal ISSN
Volume Title
Publisher
Cambridge University Press
Abstract
Surveys were conducted to determine the species composition of stemborers and their natural enemies in maize and sorghum in 1999 and 2000 in eastern, northern, southern and western Ethiopia. The six species of stemborers found attacking maize and sorghum were Chilo partellus (Swinhoe) (Lepidoptera: Crambidae), Busseola fusca Fuller, Sesamia calamistis Hampson (Lepidoptera: Noctuidae), S. nonagrioides botanephaga Tarns & Bowden (Lepidoptera: Noctuidae), Rhynchaenus niger (Horn) (Coleoptera: Rhynchophoridae) and Pissodes dubious (Ström) (Coleoptera: Rhynchophoridae). Twenty species of primary parasitoids of eggs, larvae and pupae of Ch. partellus, B. fusca and S. calamistis were recorded. Other natural enemies, including predators, fungi and nematodes, were also found. Cotesia flavipes Cameron (Hymenoptera: Braconidae) was the dominant and the most widely distributed parasitoid of stemborers in Ethiopia, and was reared from field-collected Ch. partellus, B. fusca and S. calamistis.
Description
DOI: http://dx.doi.org/10.1017/S1742758400008456
Keywords
distribution, stemborers, natural enemies, maize, sorghum, establishment, Chilo partellus, Cotesia flavipes, Busseola fusca, Ethiopia
Citation
International Journal of Tropical Insect Science / Volume 21 / Issue 04 / December 2001, pp 353-359