Haku
Viitteet 1-2 / 2
Incidence of collar rot in apple trees in Finland 1975-79
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1981)
Experiments on chemical and cultural control of the rasberry cane midge (Resseliella theobaldi) and migde blight
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1986)