Haku
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Growth substrate of plants and the reproduction rate of Tetranychus telarius (L.), Acyrthosiphon pisum Harris and Myzus persicae (Sulz).
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1969)
Reproduction of Myzus persicae (Sulz.) and Tetranychus telarius (L.) on different chrysanthemum cultivars
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1969)
Occurrence of winged aphids on potato plants and pressure for potato virus Y transmission in Finland
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1986)
Preference of cereal aphids for various cereal varieties and species of Gramineae, Juncaceae, and Cyperaceae
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1970)
Resistance of plants to the pea aphid Acyrthosiphon pisum Harris (Hom., Aphididae) : I. Fecundity of the biotypes on different host plants
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1970)
Control of Rhopalosiphum padi (L.) (Hom., Aphididae) with Coccinella septempunctata L. (Col., Coccinellidae) in cages, and effect of late aphid infestation on barley yield
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1975)
Control of aphids on sweet peppers, chrysanthemums and roses in small greenhouses using the ladybeetles Coccinella septempunctata and Adalia bipunctata (Col., Coccinellidae)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1977)
Pests of cultivated plants in Finland in 1975
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1976)
Population dynamics of cereal aphids and method of predicting population trends
(Agricultural Research Centre, 1976)
Evaluation of predator-prey ratio using Chrysopa carnea Steph. in control of Rhopalosiphum padi (L.)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1977)