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)
Changes in the concentration of free amino acids in plants induced by virus diseases and the reproduction of aphids
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1964)
PVC rearing cages for aphid investigations
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1963)
Three Aphidiids and one Pteromalid parasitizing Rubus Aphids
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1963)
Biological studies on cereal aphids, Rhopalosiphum padi (L.), Macrosiphum avenae (F.), and Acyrthosiphum dirhodum (Wlk.), (Hom., Aphididae)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1963)
The effect of virus diseases transmitted by the leafhopper Javesella pellucida (F.) on the concentration of free amino acids in oats and on the reproduction of aphids
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1966)
The bionomics of the raspberry aphids Aphis idaei v.d. Goot and Amphorophora rubi (Kalt.) (Hom., Aphididae)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1967)
Changes in the yield and protein quantity of oat caused by Rhopalosiphum padi (L.) (Hom., Aphididae)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1968)
The effect of the English grain aphid macrosiphum avenae (F.) (Hom., Aphididae) on the yield and quality of wheat
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1966)