Haku
Viitteet 1-2 / 2
Non-chemical control of carrot rust fly in Finland
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1988)
"Pest in first" and "natural infestation" methods in the control of tetranychus urticae koch with phytoseiulus persimilis athias-henriot on glasshouse cucumbers
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1976)