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

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