The invention provides an aqueous insecticide comprised of at least one surfactant, a preservative, e.g., preservative, for example a potassium salt, sodium chloride in proportions similar to proportions normally detected in mammalian blood, a nutrient source, an organic acid capable of lowering the pH of the aqueous insecticide, fragrance, and water, for the control of Cimex, e.g., Cimex lectularius (bed bugs).