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International Journal of Mosquito Research
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International Journal of Mosquito Research
Vol. 2, Issue 3, Part B (2015)

Biochemical effects of lambda-cyhalothrin and lufenuron on Culex pipiens L. (Diptera: Culicidae)

Total protein, carbohydrate and lipid content of <em>Cx. pipiens</em> late third-instar larvae 24 h post-treatment with the LC<sub>50</sub> of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (<em>P</em> < 0.05); using Duncan’s multiple range test
Fig. 1: Total protein, carbohydrate and lipid content of Cx. pipiens late third-instar larvae 24 h post-treatment with the LC50 of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (P < 0.05); using Duncan’s multiple range test
Trehalase, invertase and amylase activity of <em>Cx. pipiens</em> late third-instar larvae 24 h post-treatment with the LC<sub>50</sub> of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (<em>P</em> < 0.05); using Duncan’s multiple range test
Fig. 2: Trehalase, invertase and amylase activity of Cx. pipiens late third-instar larvae 24 h post-treatment with the LC50 of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (P < 0.05); using Duncan’s multiple range test
Protease activity of <em>Cx. pipiens</em> late third-instar larvae 24 h post-treatment with the LC<sub>50</sub> of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (<em>P</em> < 0.05); using Duncan’s multiple range test.
Fig. 3: Protease activity of Cx. pipiens late third-instar larvae 24 h post-treatment with the LC50 of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (P < 0.05); using Duncan’s multiple range test.
Lipase activity of <em>Cx. pipiens</em> late third-instar larvae 24 h post-treatment with the LC<sub>50</sub> of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (<em>P</em> < 0.05); using Duncan’s multiple range test.
Fig. 4: Lipase activity of Cx. pipiens late third-instar larvae 24 h post-treatment with the LC50 of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (P < 0.05); using Duncan’s multiple range test.
Glutamic oxaloacetic acid transaminase (GOT) and glutamic pyruvic acid transaminase (GPT) activity of <em>Cx. pipiens</em> late third-instar larvae 24 h post-treatment with the LC<sub>50</sub> of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (<em>P</em> < 0.05); using Duncan’s multiple range test; IU: international unit.
Fig. 5: Glutamic oxaloacetic acid transaminase (GOT) and glutamic pyruvic acid transaminase (GPT) activity of Cx. pipiens late third-instar larvae 24 h post-treatment with the LC50 of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (P < 0.05); using Duncan’s multiple range test; IU: international unit.
Alkaline phosphatase (AkP) and acid phosphatase (AcP) activity of <em>Cx. pipiens</em> late third-instar larvae 24 h post-treatment with the LC<sub>50</sub> of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (<em>P</em> < 0.05); using Duncan’s multiple range test; IU: international unit.
Fig. 6: Alkaline phosphatase (AkP) and acid phosphatase (AcP) activity of Cx. pipiens late third-instar larvae 24 h post-treatment with the LC50 of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (P < 0.05); using Duncan’s multiple range test; IU: international unit.
Chitinase activity of <em>Cx. pipiens</em> late third-instar larvae 24 h post-treatment with the LC<sub>50</sub> of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (<em>P</em> < 0.05); using Duncan’s multiple range test; NAGA: <em>N</em>-acetyl glucosamine
Fig. 7: Chitinase activity of Cx. pipiens late third-instar larvae 24 h post-treatment with the LC50 of lambda-cyhalothrin (0.045 ppm) and lufenuron (0.025 ppm). Different letters above the bars (SE) indicate significant differences (P < 0.05); using Duncan’s multiple range test; NAGA: N-acetyl glucosamine
International Journal of Mosquito Research