The Biology and Control of Oes- Trus Ovis in Sheep in the Winter Rainfall Areas of the Southern Cape
نویسندگان
چکیده
Oestrus ovis, the nasal bot fly which infests the nasal cavities and sinuses of sheep and goats with its larvae, is endemic in many parts of southern Africa (Bedford, 1925; Horak, 1977; Reinecke, Kirkpatrick, Swart, Kriel & Frank, 1987; Biggs & Anthonissen, 1982). According to Bedford (1925), flies of 0. ovis are active in South Africa from SeptemberMay, while Zumpt (1965) states that spring and autumn are the periods of fly activity in areas with Ion~, hot and dry summers. In the summer rainfall reg~ons of South Africa, flies are active from October-June, after which survival is dependent on quiescent larvae in the nasal cavities of the host (Horak, 1977).
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تاریخ انتشار 2013