Efficacy of Tracer 240 SC and Steward 150 SC against first and second instar larvae of Helicoverpa armigera by using the leaf dip method
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Department of Agriculture Entomology, University of Agriculture, Faisalabad, Pakistan
Khan Rashad Rasool
Department of Agriculture Entomology, University of Agriculture, Faisalabad, Pakistan
Journal of Plant Protection Research 2010;50(4):438–441
Different concentrations of Steward 150 SC and Tracer 240 SC were tested under laboratory conditions against first and second instar larvae of Helicoverpa armigera . Results showed that these insecticides are very effective. The maximum mortality was observed by both insecticides and they can be used in the Integrated Plant Management (IPM) programme of any crop. For first instar, 300 ppm spinosad and 200 ppm indoxacarb can give complete mortality after 48 hours. For second instar larvae, 400 ppm spinosad can give maximum mortality (4.667), while 200 ppm of indoxacarb can give complete mortality after 48 hours.
The authors have declared that no conflict of interests exist.
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