The ovicidal action of fenoxycarb was tested on eggs of 2 different ages of Chrysoperla carnea Stephens. Embryonic eggs treated within 24 h of oviposition were most sensitive to fenoxycarb. Immersion of eggs in a “field dose” solution (0.075 mg/ml) resulted in an embryo mortality of greater than 50% and a concentration of 0.15 mg/ml resulted in a mortality of greater than 80%. A 20-min prolonged immersion at the field dose solution resulted in nearly 100% mortality. Treatment of eggs resulted in hatching larvae that had anomalous mortality. Larvae that hatched from treated eggs had abnormal pupation and metamorphosis. In conclusion, the non-neurotoxic carbamate fenoxycarb, a selective insect growth regulator, was toxic at a low dose to C. carnea, a relevant pest predator.