Haku
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Pests of cultivated plants in Finland during 1988
(Agricultural Research Centre, 1989)
Evaluation of predator-prey ratio using Chrysopa carnea Steph. in control of Rhopalosiphum padi (L.)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1977)
Pests of cultivated plants in Finland in 1978
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1979)
Resistance of cereals to the aphids Rhopalosiphum padi (L.) and Macrosiphum avenae (F.) and fecundity of these aphids on Graminae, Cyperaceae and Juncaceae
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1972)
The importance of Coccinella septempunctata L. (Col., Coccinellidae) in controlling cereal aphids, and the effect of aphids on the yield and quality of barley
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1972)
Changes in the yield and protein quantity of oat caused by Rhopalosiphum padi (L.) (Hom., Aphididae)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1968)
Control of Rhopalosiphum padi (L.) (Hom., Aphididae) on cereals
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1976)