Sumber Informasi Tagged: Zimbabwe
11 item ditemukan (Menampilkan 11 - 11) Sebelumnya
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01 Januari 1994 The environment impact of DDT used in ground-spraying operations to eradicate tsetse flies from north western Zimbabwe was assessed in field studies between 1987-1991 and reported in this publication. The effects are reversible, probably within 10-20 years, and are less serious than those caused...