Avanços na ciência e tecnologia agrícola

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Evaluation of Non Selective Post Emergence Herbicides against Complex Weeds at Arjo Dedessa Sugar Estate: Verification Trial

Amrote Tekle, Tolessa Taye, Yonas Worku

Four candidates of non-selective post-emergence herbicides were evaluated against complex weed management at Arjo Deddessa sugarcane estate. The evaluation was done based their efficacy and the experiment was laid in RCBD with three replications. The experiment was evaluated in rain fed condition up to 60 days afterspray. The efficacy of the test herbicides shown that, all of the candidates except Trustsate 360 SL were control the broad and grass weed species up to 60 DAS without the supplement of additional control options. The candidates also provide good control efficacy to sedge weed species up to 40DAS. Generally, the test herbicides Linkosate 75.7 SG with efficacy level of 85.52%, Linkosate 48 SL with 84.14% and Getrid 480 SL with 78.44% were gave promising result against complex weed. Based on mean efficacy the three namely, Linkosate 75.7 SG, Linkosate 48 SL and Getrid 480 SL at Arjo Deddessa were effective to control citrus fields, mango orchard and other non-farms likes canal clearing with supplementing manual method for uprooting some weed species likes field bind weed and parthenium weed particularly according to their order. Arjo Deddessa sugarcane plantation can use these non-selective herbicides two weeks afterspray before planting.