Turkish Journal of Entomology (2013) 37, 399-407

Aida Ayubi, Gholamhossein Moravvej, Javad Karimi and Ali Jooyandeh (2013)
Lethal effects of four insecticides on immature stages of Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae) in laboratory conditions
Turkish Journal of Entomology 37 (4), 399-407
Abstract: Chrysoperla carnea (Stephens) is a general biocontrol agent of several insect pests in greenhouses. The lethal effects of four compounds, imidacloprid, lufenuron, thiametoxam and thiodicarb, on the eggs and 1st instar larvae of C. carnea were studied in laboratory conditions. Dipping bioassay tests were used for eggs and the residual contact method for larvae. Positive relationships were detected between the concentrations of insecticides and mortality rates of various stages. However, there were considerable variations in toxicity of insecticides. Thiodicarb had no effect on eggs, whereas thiametoxam with an LC50 value of 1.90 μg ai. L^-1 showed the highest ovicidal activity. On larvae, thiametoxam was the most toxic (LC50= 0.55 μg ai. L^-1) and lufenuron proved to be the least toxic (LC50 = 44.02 μg ai. L^-1). The use of thiametoxam should be carefully evaluated if employed in combination with C. carnea in IPM programs.
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Database assignments for author(s): Javad Karimi

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
resistance to pesticides

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Chrysoperla carnea (predator)