Pea aphid, Acyrthosiphon pisum Harris (Homoptera: Aphididae), is one of most devastating insect pests of leguminous forage, which affect the quality and quantity of herbage production. Intraspecies differentiation of pea aphid has already caused the theoretical and practical attention. The exploration of this pest population genetic structure and quantity control mechanism helps formulating appropriate control strategy and effective prevention measures. Genetic diversity of A. pisum populations from differe...