Weed control in coffee

Abstract

Over the last few years, herbicides have become an accepted alternative to hand-weeding for weed control in coffee plantations in the highlands. Trials which examine the effectiveness and economics of various weed control programmes have been part of the herbicides trial work at Aiyura since early 1968. Progress results of two of these trials are reported here. A more detailed account of both trials, with further information on herbicides, is given in The Papua and New Guinea Agricultural Journal, Vol. 22, No. 2 (May, 1971).