Haku
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Pests of cultivated plants in Finland during 1988
(Agricultural Research Centre, 1989)
Control of orange wheat blossom midge, Sitodiplosis mosellana (Gehin), with pyrethroids
(Agricultural Research Centre, 1989)
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)