Aphid control on chrysanthemums and carnations
Ronald D. Oetting, University of California
Frank S. Morishita, University of California
Roland N. Jefferson, University of California
Wesley A. Humphrey
Seward T. Besemer
California Agriculture 31(12):7-9. DOI: 10.3733/ca.v031n12p7.
R.D. Oetting is Assistant Professor and Assistant Entomologist, Department of Entomology, University of California, Riverside. F.S. Morishita is Staff Research Associate, Department of Entomology, University of California, Riverside. R.N. Jefferson is Professor Emeritus, Department of Entomology, University of California, Riverside. W.A. Humphrey is Farm Advisor for Orange County; S.T. Besemer is Farm Advisor for San Diego County.
Abstract Not Available – First paragraph follows:
Aphids commonly occur as pests on chrysanthemums and carnations as well as on many other plants grown in plastic or glass houses in California. They are usually found in colonies on plant tips, shoots of new growth, or flowers. Aphids multiply so rapidly under favorable conditions that a light infestation may increase to alarming proportions in a week. They are generally more numerous during cooler months when the most serious damage occurs. However, damage can be observed throughout the year.