Abstract
In the present research three IGR’s viz bruce , Falcon and Runner with different concentrations 0.03, 0.06 and 0.09 were tested against Trogoderma granarium under laboratory conditions.. Different dilutions of IGRs were prepared using distilled water and were applied on grains which were air dried before insect release. Twenty grubs (7 days old) were allowed to feed treated grains and data were recorded for larval mortality, larval weight, pupal and adult emergence. On overall basis at larval stage pyriproxifen gave best results, causing mean mortality 7.08% followed by Methoxyfenazide (Runner) with mean value 5.83% while Tebufenazide (Falcon) caused minimum mortality 3.33% at maximum concentration 0.09 ppm. Mortality and concentration showsed positive correlation while mortality and interval showed negative correlation. All the three IGR’s showed good impact on the reduction of larval weight. Pyriproxifen (Bruce) caused 32.49% t larval weight reduction over control with mean value 4.27 (unit ?) followed by methoxyfenazide (Runner) which gave 29.82% larval weight reduction followed by control mean value 4.73. Tebufenazide (Falcon) gave minimum 26.40% larval weight reduction over control with mean value 2.61 (unit ?). Similarly, regarding pupal development, , pyriproxifen gave highest percent pupal reduction over control 75.26% with mean value 5.34 while Tebufenazide gave minimum pupal percent reduction over control 63.22% with mean value 6.64.
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More From: Journal of Global Innovations in Agricultural and Social Sciences
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