Experimental Results of Eleusine Jaegeri PLGI. Control In East African Highlands

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O'Rourket, J.T.
Terryt, P.J.
Frame, G.W.
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Literature over the past 40 years has indicated a need for research on the control of Eleusine jaegeri East Africa. Numerous attempts have been made but no results published. In 1972, studies were begun at Empakaai Crater in the Ngorongoro Highlands of Tanzania using both mechanical and chemical control methods. Dalapon at 5 and 10 kg/ha and glyphosate at 1, 2 and 4 kg/ha were applied to sites treated mechanically by cutting Eleusine and removing the cuttings, cutting Eleusine and leaving the cuttings in place, or not cutting the Eleusine. At the same time, sites involving strictly mechanical methods were established by destumping, cutting and removing, cutting and leaving, or cutting and burning. In addition to these trials on an Andropogon-TrifoLium site, the mechanical treatments plus various burning methods were initiated at a Pennisetum clandestinum site. Assessments were made by use of a point frame and by visual ratings at intervals from February, 1973, until February, 1974. Results of the poiny-frame sampling are reported here. Destumping is the most effective mechanical control method with lesser beneficial results from cutting and removing and cutting and burning the Eleusine. Dalapon at 5 kg/ha gave the best results in chemical trials. Site selection initially should be restricted to Pennisetum clandestinum sites.
East African Agricultural and Forestry Journal, 41 (No. 3),pp. 253-265