Bush-control studies in the drier areas of Kenya. 6. Effects of fenuron (3-phenyl-1,1-dimethylurea.

Published online
11 Jan 1971
Content type
Journal article
Journal title
Journal of Applied Ecology

Pratt, D. J.

Publication language
Africa South of Sahara & Kenya


In field tests with fenuron pellets, Commiphora spp., Maytenus putterlickioides, Premna oligotricha and Tarchonanthus camphoratus were mostly tolerant to the recommended level of 7 g a.i. applied at the base of established plants, but Dichrostachys cinerea and most Acacia spp. were susceptible. When applied to the base of A. drepanolobium at the start of the rains, with burning 6 months later, 3 g a.i./tree gave 75-80% kill compared with about 50% if application was delayed for 7 weeks or burning was deferred for 2 years or more. 0.75 and 1.5 g/tree followed by burning gave 50% kill. [See also H.A. 38: 1404]-R.B.

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