Susceptibility of adult green lacewing, Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae) to some prevalent insecticides in laboratory conditions

Subject Areas : entomology and othea arthropods

A.  Ayubi ¹ (Department of Plant Protection, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran)
G.  Moravvej ² (Department. of Plant Protection, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran)
J.  Karimi ³ (Department. of Plant Protection, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran)
A.  Jooyandeh ⁴ (Department of Agricultural and Natural Resource Research Center of Khorasan Razavi Province, Mashhad, Iran)

Received: 2013-02-13 Accepted : 2013-11-20 Published : 2015-02-20

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Abstract :

The common green lacewing is an important natural enemy used for pest control in greenhouses. It is also very common in many agricultural systems. This insect is a powerful agent in biological control programs because of its wide geographical distribution, high compatibility with different agricultural systems, high searching capability and ease of rearing. In the present study, the lethal effects of some prevalent insecticides were examined on Chrysoperla carnea adults using residual contact bioassays at 26 ± 2 ºC, 60 ± 10% R.H. and a photoperiod of 16: 8 h (L: D). The results indicated that the order toxicity of insecticides was: Lufenuron< Thiodicarb< Imidacloprid<Thiametoxam. The susceptibility of males was more than females. The estimated LC50 value for thiamethoxam was 8.83 and 73.05 µg ai. L-1, against males and females, respectively. Lufenuron did not show any lethal effects on adults even at doses higher than maximum field recommendation rate for pest control. The results suggested that lufenuron might bea suitable candidate for further research in IPM programs.