Haku
Viitteet 1-2 / 2
Rearing the univoltine ladybeetles, coccinella septempunctata and adalia bipunctata (col., coccinellidae), all year around in the laboratory
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1976)
Control of Rhopalosiphum padi (L.) (Hom., Aphididae) with Coccinella septempunctata L. (Col., Coccinellidae) in cages, and effect of late aphid infestation on barley yield
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1975)