Kurppa S, Suonpää M. Infestations and distribution of Rhopalosiphum padi (L.) on different varieties of barley and oats, effect of nitrogen fertilization and chemical control. AFSci [Internet]. 1990Jan.1 [cited 2024Jun.29];62(1):33-44. Available from: https://journal.fi/afs/article/view/72922