Haku
Viitteet 1-3 / 3
Damage and control of Rhopalosiphum padi in Finland during the outbreak of 1988
(Agricultural Research Centre, 1989)
Wheat blossom midges, Sitodiplosis mosellana (Gehin) and Contarinia tritici (Kirby) in Finland during 1981-1987
(Agricultural Research Centre, 1989)