Detoxification enzymes activities in two color morphs of pea aphid (Acyrthosiphon pisum) treated with different sub-lethal concentrations of avermectin Antibiosis of five alfalfa cultivars to two colour morphs of Acyrthosiphon pisum Effect of photoperiod on growth and development of two color morphs of pea aphid (Acyrthosiphon pisum) Flower Color Polymorphism in Rhododendron cyanocarpum (Ericaceae), an Endangered Alpine Species Endemic to NW Yunnan, China Effect of photoperiod on population parameters of two color morphs of the pea aphid Acyrthosiphon pisum Effects of Sublethal Dosage of Imidacloprid on the Growth, Development and Population Parameter of Two Color Morphs of Pea Aphid Study on predation preference of Harmonia axyridis (Pallas) and Adonia variegata (Goeze) on red and green color morph pea aphids Effect of UV-B for Different Radiation Durations on Biological Characteristics of Two Color Morphs of Pea Aphid Acyrthosiphon pisum (Harris) Offspring Effects of Different Antibiotics on the Growth and Reproduction of Red Pea Aphid (Acyrthosiphon piusm) Population parameters of two pea aphid (Acyrthosiphon pisum) color morphs at different temperatures