Haku
Viitteet 31-40 / 63
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)
Resistance of plants to the pea aphid, Acyrthosiphon pisum Harris (Hom., Aphididae) : 4. fecundity on different alsike and white clover varieties
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1971)
The effect of amino acids, vitamins and trace elements on the development of Acyrthosiphon pisum Harris (Hom., Aphididae)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1967)
Tuholaisten esiintyminen v. 1951
(Maaseudun Tulevaisuus, 1952)