Assessment of Relative Toxicity of Common Insecticides against Adult and Grubs of Coccinella septempunctata under Laboratory Settings

Tamseela Mumtaz, Rabia Afzal, Dilber H. Roy, Shamim Akhtar


One of the significant aphid-eating predators that are natural is the ladybird beetle Coccinella septempunctata. C. septempunctata is a biological control agent and effective in integrated pest management strategies (IPM). In the development of IPM, chemical insecticides are routinely utilized, to boost crop protection and support the activity of biological control agents. Research on the relative toxicity of multiple insecticides on seven spotted ladybird beetle C. septempunctata L. instars was conducted in a lab environment to gauge the C. septempunctata’s reaction to powerful insecticides. Six insecticides were treated as Spinetoram 120SC (0.4%/0.5L), Steward 150EC (0.86/0.5L), Coragen 200ml (0.4%/0.5L), Siphtoram 120SE (0.8/0.5L), Chlorfenapyr 36% (1.25/0.5L), and Lufenuron 50% (1.0/0.5L) to the 1st, 2nd, 3rd, and 4th instars of C. septempunctata. After 4, 12, 24, 48, and 72 hours of the treatment, the results of the proportional death were determined. Ongoing investigation was done at 60±5% RH and 25+2oC. When administered on adult ladybird beetles, Lufenuron was detrimental in 99.4 % cases, Chlorfenapyr in 88.4% Steward in 85.5% of cases, Coragen in 83.2%, and Siphtoram in 77.6%, Spinetoram was very little hazardous substance based on the death rate, followed by, Coragen, Steward, Chlorfenapyr, and Lufenuron.


Insecticide toxicity; Coccinella septempunctata; Seven spotted beetle; Mortality rate; Insect pest management

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