Haku
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Damage and control of Rhopalosiphum padi in Finland during the outbreak of 1988
(Agricultural Research Centre, 1989)
Occurrence of damage and predicting the activity of the frit fly (Oscinella frit L.) in Finland
(Agricultural Research Centre, 1990)
Wheat blossom midges, Sitodiplosis mosellana (Gehin) and Contarinia tritici (Kirby) in Finland during 1981-1987
(Agricultural Research Centre, 1989)