EVALUATION OF SOME INSECTICIDES FOR THE CONTROL OF SESAME WEBWORM, Antigastra catalaunalis DUP. UNDER GEDARIF RAINFED CONDITIONS
ELNAYER H. SULIMAN *
Department of Pesticides and Toxicology, Gedarif Research Station, Crop Protection Research Centre, Agricultural Research Corporation (ARC), Sudan.
NABIL H. H. BASHIR
Department of Pesticides and Toxicology, Faculty of Agricultural Sciences, Wad Medani, Sudan.
YOUSIF O. H. ASSAD
Department of Pesticides and Toxicology, Faculty of Agricultural Sciences, Wad Medani, Sudan.
*Author to whom correspondence should be addressed.
Abstract
A study was conducted to evaluate the efficiency of some insecticides against sesame webworm, Antigastra catalaunalis on sesame crop and to determine the appropriate time and frequency of insecticide application (insecticide application schedule). It was carried out for two seasons 2006/07 and 2007/08 at the northern area of Gedarif State (Gadambalia area), Sudan with seven treatments four replications. The treatments were malathion 5% WP 0.75 kg/fedd, malathion 5% WP 0.50 kg/fedd, malathion 5% WP 0.25 kg/fedd, malathion 57% EC at rate 1.016 L/F, bifenthrin (Talstar) EC 0.15 lit/fedd and fenpropthrin (Danitol) 20% 0.25 lit/fedd. Among the treatments evaluated bifenthrin and fenpropthrin are found effective against sesame web worm in terms of reduction in mean number of larvae and increase in mean number of flowers after one week of treatment and yield. All the treatments were found significantly superior to untreated check.
Keywords: Sesame webworm, Antigastra catalaunalis, insecticides, mortality, damage, control and yield