Coffee Board of Kenya Monthly Bulletins October 1962

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1962
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This method entailed the random selection of two sample trees per acre which were first covered with American sheets and sprayed with pyrethrum from a hand atomiser. Thro ugh the years this testing method has remained unaltered except for changes in formulation of the insecticide. However, with rising labour costs, the question of sampling for Antestia has been re-investigated at the Coffee Research Station, Ruiru, with a view to reducing the ma n-hours required without reducing the accuracy of the res ult.
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