Information

Agent

Aphthona lacertosa Rosenhauer

Class: Insecta
Order: Coleoptera
Family: Chrysomelidae

Agent Name References:
- Faubert, H. and R.A. Casagrande. 2002. Cypress Spurge. In R. Van Driesche, S. Lyon, B. Blossey, M. Hoddle, and R. Reardon, Eds. Biological Control of Invasive Plants in the Eastern United States. FHTET-2002-04. USDA Forest Service, Forest Health Technology Enterprise Team, Morgantown, West Virginia. pp. 195-207.

Weed

Euphorbia cyparissias L.

Family: Euphorbiaceae
Common Name: cypress spurge

Notes: North American cypress spurge is considered a complex of cypress spurge subspecies from multiple introductions

Origin: Eurasia

Weed Name References:
- Faubert, H. and R.A. Casagrande. 2002. Cypress Spurge. In R. Van Driesche, S. Lyon, B. Blossey, M. Hoddle, and R. Reardon, Eds. Biological Control of Invasive Plants in the Eastern United States. FHTET-2002-04. USDA Forest Service, Forest Health Technology Enterprise Team, Morgantown, West Virginia. pp. 195-207.
- Gassmann, A. and D. Schroeder. 1995. The search for effective biological control agents in Europe: history and lessons from leafy spurge (Euphorbia esula L.) and cypress spurge (Euphorbia cyparissias L.). Biological Control 5: 466-477.

Weed Common Name References:
- Faubert, H. and R.A. Casagrande. 2002. Cypress Spurge. In R. Van Driesche, S. Lyon, B. Blossey, M. Hoddle, and R. Reardon, Eds. Biological Control of Invasive Plants in the Eastern United States. FHTET-2002-04. USDA Forest Service, Forest Health Technology Enterprise Team, Morgantown, West Virginia. pp. 195-207.
- Gassmann, A. and D. Schroeder. 1995. The search for effective biological control agents in Europe: history and lessons from leafy spurge (Euphorbia esula L.) and cypress spurge (Euphorbia cyparissias L.). Biological Control 5: 466-477.

Weed Notes References:
- Bourchier, R., R. Hansen, R. Lym, A. Norton, D. Olson, C.B. Randall, M. Schwarzländer, and L. Skinner. 2006. Biology and Biological Control of Leafy Spurge. FHTET-2005-07. USDA Forest Service, Forest Health Technology Enterprise Team, Morgantown, West Virginia. 138 pp.
- Gassmann, A. and D. Schroeder. 1995. The search for effective biological control agents in Europe: history and lessons from leafy spurge (Euphorbia esula L.) and cypress spurge (Euphorbia cyparissias L.). Biological Control 5: 466-477.

Weed Origin References:
- Faubert, H. and R.A. Casagrande. 2002. Cypress Spurge. In R. Van Driesche, S. Lyon, B. Blossey, M. Hoddle, and R. Reardon, Eds. Biological Control of Invasive Plants in the Eastern United States. FHTET-2002-04. USDA Forest Service, Forest Health Technology Enterprise Team, Morgantown, West Virginia. pp. 195-207.
- Gassmann, A. and D. Schroeder. 1995. The search for effective biological control agents in Europe: history and lessons from leafy spurge (Euphorbia esula L.) and cypress spurge (Euphorbia cyparissias L.). Biological Control 5: 466-477.

Release and Source Information

List: 1 - Exotic Organisms Intentionally Introduced

Source: Ex. Austria & Hungary & Former Yugoslavia
Year: 1995
Region: North America
Country: United States of America
Subregion of Country: NH, RI
Subregion specific:

Release History: Redistributed from Euphorbia esula in MT and ND in a mixture containing Aphthona czwalinai and A. lacertosa to E. cyparissias in NH 1995-1996, RI 1995-1996 1998

Release Notes: Released on both Euphorbia cyparissias and E. esula.

Source Information References:
- Faubert, H. and R.A. Casagrande. 2002. Cypress Spurge. In R. Van Driesche, S. Lyon, B. Blossey, M. Hoddle, and R. Reardon, Eds. Biological Control of Invasive Plants in the Eastern United States. FHTET-2002-04. USDA Forest Service, Forest Health Technology Enterprise Team, Morgantown, West Virginia. pp. 195-207.
- Rees, N.E., Q.P.C. Jr, G.L. Piper, E.M. Coombs, C.E. Turner, N.R. Spencer, and L.V. Knutson. 1996. Biological Control of Weeds in the West. Western Society of Weed Science, Bozeman, Montana
- ROBO Database. 2012. Release of beneficial organisms in the United States and Territories. USDA ARS. www.ars-grin.gov/nigrp/robo.html. 10 September 2012.

Original Host Species

Euphorbia cyparissias L., Euphorbia esula L.

Original Host Species References:
- ROBO Database. 2012. Release of beneficial organisms in the United States and Territories. USDA ARS. www.ars-grin.gov/nigrp/robo.html. 10 September 2012.

Establishment

Established: Yes
Established in Subregion of Country: NH, RI
Established in Subregion specific:

Establishment References:
- Faubert, H. and R.A. Casagrande. 2002. Cypress Spurge. In R. Van Driesche, S. Lyon, B. Blossey, M. Hoddle, and R. Reardon, Eds. Biological Control of Invasive Plants in the Eastern United States. FHTET-2002-04. USDA Forest Service, Forest Health Technology Enterprise Team, Morgantown, West Virginia. pp. 195-207.

Abundance

Variable

Abundance References:
- Faubert, H. and R.A. Casagrande. 2002. Cypress Spurge. In R. Van Driesche, S. Lyon, B. Blossey, M. Hoddle, and R. Reardon, Eds. Biological Control of Invasive Plants in the Eastern United States. FHTET-2002-04. USDA Forest Service, Forest Health Technology Enterprise Team, Morgantown, West Virginia. pp. 195-207.

Agent Impact

Impact: Slight
Geographic Scale of impact: Regional
Impact Notes: Scarcer than other Aphthona spp. in RI where this and A. czwalinai being replaced by A. flava and A. nigriscutis, unknown densities in NH. Does best in loamy soils, can adapt locally to both dry and wet habitats. Under some conditions, stem density may decrease quickly but unattacked roots help plants recover; numerous years under right conditions required for this agent to decrease populations permanently. Typically most impact in combination with other Aphthona spp.

Impact References:
- Bourchier, R., R. Hansen, R. Lym, A. Norton, D. Olson, C.B. Randall, M. Schwarzländer, and L. Skinner. 2006. Biology and Biological Control of Leafy Spurge. FHTET-2005-07. USDA Forest Service, Forest Health Technology Enterprise Team, Morgantown, West Virginia. 138 pp.
- Faubert, H. and R.A. Casagrande. 2002. Cypress Spurge. In R. Van Driesche, S. Lyon, B. Blossey, M. Hoddle, and R. Reardon, Eds. Biological Control of Invasive Plants in the Eastern United States. FHTET-2002-04. USDA Forest Service, Forest Health Technology Enterprise Team, Morgantown, West Virginia. pp. 195-207.

Limiting Factors

Habitat

Limiting Factors References:
- Faubert, H. and R.A. Casagrande. 2002. Cypress Spurge. In R. Van Driesche, S. Lyon, B. Blossey, M. Hoddle, and R. Reardon, Eds. Biological Control of Invasive Plants in the Eastern United States. FHTET-2002-04. USDA Forest Service, Forest Health Technology Enterprise Team, Morgantown, West Virginia. pp. 195-207.
- Hansen, R.W., N.R. Spencer, L. Fornasari, P.C. Quimby Jr., R.W. Pemberton, and R.M. Nowierski. 2004. Leafy spurge, Euphorbia esula (complex). In E.M. Coombs, J.K. Clark, G.L. Piper, and A.F. Cofrancesco Jr., Eds. Biological Control of Invasive Plants in the United States. Oregon State University Press, Corvallis, Oregon. pp. 233-262.

Other Attack

Were other species attacked?: No
Other Species Attacked Notes:

Research Organizations

University of North Dakota, Fargo (State (11))
Montana State University (State (7))
Bozeman, Montana (USDA (10))
United States Department of Agriculture, Animal and Plant Health Inspection Service (USDA-APHIS)

Notes