The effects of Artemisia annua L. and Achillea millefolium L. crude leaf extracts on the toxicity, development, feeding efficiency and chemical activities of small cabbage Pieris rapae L. (Lepidoptera: Pieridae)

► Small white (Pieris rapae L.) is an important pest on cruciferous cultures worldwide. ► In the agricultural pest managements, botanicals are best suited for use in organic production in industrialized countries but they can play a much greater role for the production of food in the developing countries. ► The plant Artemisia and Achillea (Asteracea) used in this study showed toxicity, developmental and biochemical effects on P. rapae.