Efficacy of some insecticides against aphid (aphis gossypii glover) on potato
2005
Mohammed, E.S., Agricultural Research and Technology Corporation, Shambat Research Station, Shambat (Sudan)
This experiment was carried out during winter seasons (2003-04 and 2004-05) at Shambat Research Station Farm to evaluate the efficacy of five insecticides viz. Marchal (carobsulfan) 25% EC, Deltatof (deltamethrin) 2.5% EC, Evisect (thiacyclam) 50% SP, Pegasus (difenthiuron) 50% SC and Actara (thiamethoxam) 25% WG against cotton aphid (Aphis gossypii Glover) on potato (Solanum tuberosum L.). Marshal at 75 g a.i./fed, 100 g a.i. /fed. and 125 g a.i./fed. effectively controlled aphid compared to Deltatof and Evisect in the first season and Pegasus in the second season. Moreover, the performance of Marchal at 100 and 125 g a.i./fed. was comparable to Actara (Standard) against aphids and significantly increased marketable yield of potato compared with other tested insecticides and the untreated check. In the untreated control marketable yield was significantly reduced and the percentage of unmarketable yield was increased
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