Haku
Viitteet 1-4 / 4
Frog-hoppers (Hom., Cercopidae) in strawberry plantations
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1970)
Population dynamics of cereal aphids and method of predicting population trends
(Agricultural Research Centre, 1976)
Ecology and control of timothy grass flies (Amaurosoma spp., Dipt., Scatophagidae) and the effects of chemical control on the fauna of the field stratum.
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1972)
Comparison of leafhopper faunae in cereals
(Agricultural Research Centre, 1971)