Haku
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Field studies on the factors affecting the population dynamics of the bird cherry-oat aphid, Rhopalosiphum padi (L.) in Finland
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1982)
Preliminary studies on the effect of host age and aphid generation on the reproduction and survival of the bird cherry-oat aphid, Rhopalosiphum padi (L.)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1982)
Evaluation of predator-prey ratio using Chrysopa carnea Steph. in control of Rhopalosiphum padi (L.)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1977)
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)