1. From collections of maggots from live sheep at Onderstepoort, Dohne,
C.P. and the main sheep farming areas of the Union of South Africa,
Lucilia cuprina alone was responsible for 55 per cent. of the total strikes,
and in combination with other species the percentage was increased to 90.
2. Chrysomyia chloropyga, as a sheep myiasis producing fly, ranks next
in importance to Lucilia cuprina.
3. From trapping records at Onderstepoort the seasonal abundance of
blowflies are obtained. The necessity for using selective baits is stressed.
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