Haku
Viitteet 1-2 / 2
Evaluation of predator-prey ratio using Chrysopa carnea Steph. in control of Rhopalosiphum padi (L.)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1977)
Control of Rhopalosiphum padi (L.) (Hom., Aphididae) on cereals
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1976)