The cotton aphid, Aphis gossypii Glover and predators on Catalpa bignonioides Walt.

Abstract

In 1998–2001, the cotton aphid (Aphis gossypii Glover, Homoptera, Aphididae) was found to complete its holocycle on Catalpa bignonioides Walt. in Ljubljana (Slovenia). The infested leaves showed curling. The aphid was very damaging by causing the flowers to abort. Many natural enemies (Adalia bipunctata, Chrysoperla carnea, Aphidoletes aphidimyza, Scymnus and Orius species) attack A. gossypii very succcesfully.