In vitro comparative toxicity of different insecticides against adults of seven spotted beetle, Coccinella septempunctata L. (Coleoptera: Coccinellidae)
Talha Karamat Mughal, Zia Ullah, Muhammad Altaf Sabri, Saboor Ahmad and Dilbar Hussain
Under the laboratory conditions (28 oC±1, 70 ± 5%% relative humidity) a trial was conducted in the laboratory of Department of Entomology, University of Agriculture Faisalabad during 2012-13 to evaluate the effect of comparative toxicity of different insecticides against adults of the ladybird beetle (Coccinella septempunctata L.). In this experiment seven treatments used namely Ememectin Benzoate (Timer® 1.9 EC), Indoxacarb (Steward® 150 EC), Imidachloprid (Crown® 70 WS), Chlorpyrifos (Helmat® 40 EC), Spinosad (Tracer® 480 SC), Leufenoron (Track® 10 EC) and Acetamaprid (Astarp® 250 WP). The experiment was laid out with five replications under Completely Randomized Design (CRD).Leaf dip bioassay method was used for Coccinella septempunctata L.Probit analysis was applied for statistical analysis. Our Results showed that the most toxic chemical was Chlorpyrifos that caused 100% mortality of adults of ladybird beetle after 72 hours and imidachloprid was the safest insecticide which can be included in integrated pest management practices. The order of toxicity on the basis of mortality was Chlorpyrifos > Indoxacarb > Spinosad > Acetamaprid > Ememectin Benzoate > Leufenoron > Imidachloprid.
Talha Karamat Mughal, Zia Ullah, Muhammad Altaf Sabri, Saboor Ahmad, Dilbar Hussain. In vitro comparative toxicity of different insecticides against adults of seven spotted beetle, Coccinella septempunctata L. (Coleoptera: Coccinellidae). J Entomol Zool Stud 2017;5(6):498-502.