Abstract
Aims: Management of invasive southeast Asian thrips, Thrips parvispinus under laboratory conditions. Study Design: Completely Randomized Design. Place and Duration of Study: Regional Agricultural Research Station, Guntur, Andhra Pradesh during 2023. Methodology: Bio assays study was conducted with eleven insecticides for the Management of Thrips parvispinus under laboratory conditions following leaf dip method replicated thrice. Mortality and corrected mortality were assessed at 24 and 48 hours after treatment imposition by counting the number of dead and live adults. Results: Bio assay study revealed that the insecticide broflanilide 300 DC @ 64.0 ml/ha recorded significant high percent mortality of 93.3 at 48 hours after exposure. The insecticides fluxametamide 10 EC @ 400 ml/ha, tolfenpyrad 15 EC@ 1000 ml/ha, spinoterom 11.7 SC @ 500 ml/ ha and fipronil 5 SC @1000 ml/ha were at par with broflanilide 300 DC with 90.0, 90.0, 86.7 and 86.7 percent mortality, respectively. Lowest mortality of 6.0 percent was observed in untreated control where the leaves were agitated in distilled water. The corrected mortality was calculated and the insecticides broflanilide 300 DC (92.59 %), fluxametamide 10 EC (88.9), tolfenpyrad 15 EC (89.3), spinetoram 11.7 SC (85.9) and fipronil 5 SC @400 ml/acre (85.2) recorded high corrected mortality at 48 hours of post treatment.
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