Possible Methods for Controlling Ischaemum afrum (J. F. Gamel) Dandy,in Fallow |
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Authors: | A A S Ibrahim |
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Institution: | Agricultural Research Corporation , Wad Medani , Democratic Republic of the Sudan |
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Abstract: | Abstract Different mechanical cultivations and herbicide treatments were compared for controlling Ischaemum afrum in a heavily infested fallow area. Of the mechanical cultivations, disc ploughing to a depth of more than 15 cm, following removal of tufts and watering, was found very effective (83% reduction). Incorporated pre-emergence triluralin (1.90 kg a.i./ha) alone or in tank mixtures with oxadiazon (0.95 + 0.95 kg a.i./ha) was also found promising (79 and 76% reduction respectively). Three applications of dalapon (8.09 kg a.i./ha), as post-emergence, at two weekly intervals or two applications followed by another application at 4.05 kg a.i./ha gave almost complete eradication of Ischaemum afrum seedlings for about 12 weeks (99% reduction). |
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Keywords: | control damage Heliothis armigera insecticide Nigeria tomato |
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