Selective toxicity of insecticides between Aphis citricola and Coccinella septempunctala Influence of host plants to detoxification enzymes and susceptibilities to insecticides on Aphis citricola von der Goot Effects of Abamectin Stress on the Food Chain of Malus micromalus- Aphis citricola-Harmonia axyridis Host preference and fitness of Aphis citricola (Hemiptera: Aphididae) to mature and young apple leaves.