Integrated program protects trees from eucalyptus longhorned borer
Timothy D. Paine, Department of Entomology, UC Riverside
J. G. Millar, Department of Entomology, UC Riverside
L. M. Hanks, Department of Entomology, UC Riverside
California Agriculture 49(1):34-37.
Phoracantha semipunctata F., a cerambycid beetle introduced into California within the last 10 years, is killing large numbers of eucalyptus trees throughout much of the state. Risk of tree mortality can be reduced through managing tree stress, selection of more resistant tree species and disposal of infested wood. A biological control program to reduce beetle populations through the introduction of egg and larval parasites is currently being implemented. The combination of appropriate tree management and biological control holds promise for protecting these valuable ornamental tree species.
T.D. Paine is Associate Professor, the Department of Entomology, UC Riverside. J.G. Millar is Associate Professor, the Department of Entomology, UC Riverside. L.M. Hanks is Assistant Research Entomologist in the Department of Entomology, UC Riverside.
The authors thank Rancho Santa Fe Association, Elvenia Slosson Fund for Ornamental Horticulture, California Department of Forestry and Fire Protection, California Department of Transportation, UC Statewide Integrated Pest Management Program, and California Association of Nurserymen for their support of this project. We also thank P. Svihra and R. Redak for their careful reviews of the manuscript, and F. Ameeri, J. Arredondo, S. Gilbert, J. Gould, K. Kund, S. McElfresh, D. Ott, T. Promlee, S. Rama and A. Rust for their contributions and assistance.