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Verticillium wilt of cacao in Uganda : the relationship between Verticillium dahliae and cacao roots / by A.M. Emechebe, C.L.A. Leakey and W.B. Banage.
- 864.6
- Cambridge University Press],
- 1972.
- [London [etc.] :
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Secondary leaf fall of Hevea brasiliensis : meteorological and other factors affecting infection by Colletotrichum gloeosporioides / by R.L. Waste.
- Cambridge University Press],
- 1972.
- [London [etc.] :