Reduced Growth Associated with Infestations of Douglas-fir Seedlings by Cinara Species (Homoptera: Aphidae)
- 1 February 1965
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 97 (2) , 113-119
- https://doi.org/10.4039/ent97113-2
Abstract
Aphids of the genus Cinara are capable of causing serious growth reduction of Douglas-fir seedlings. Growth of infested seedlings may be only one-fourth to one-half that of uninfested seedlings. The aphids are easily controlled by injecting demeton around the base of the seedling. The presence of ants to clean up excessive honeydew is shown to be beneficial for the aphids.Keywords
This publication has 2 references indexed in Scilit:
- Life History and Control of Cinara winonkae1Journal of Economic Entomology, 1953
- Principle of Forest EntomologyEcology, 1930