Dichrostachys cinerea (tree, shrub)

Ecology Distribution Management Info Impact Info References and Links Contacts

Management Information Preventative measures: A Risk Assessment of Dichrostachys cinerea for Hawai‘i and other Pacific islands was prepared by Dr. Curtis Daehler (UH Botany) with funding from the Kaulunani Urban Forestry Program and US Forest Service. The alien plant screening system is derived from Pheloung et al. (1999) with minor modifications for use in Pacific islands (Daehler et al. 2004). The result is a score of 16 and a recommendation of: "Likely to cause significant ecological or economic harm in Hawai‘i and on other Pacific Islands as determined by a high WRA score, which is based on published sources describing species biology and behaviour in Hawai‘i and/or other parts of the world." Physical: Cutting and burning of the plants is not a very efficient control method, since the seeds survive in the soil, and the growth is very fast. Chemical: Use of dangerous herbicides is often necessary.          Management Resources/Links 1. Daehler, C.C; Denslow, J.S; Ansari, S and Huang-Chi, K., 2004. A Risk-Assessment System for Screening Out Invasive Pest Plants from Hawaii and Other Pacific Islands. Conservation Biology Volume 18 Issue 2 Page 360.         Summary: A study on the use of a screening system to assess proposed plant introductions to Hawaii or other Pacific Islands and to identify high-risk species used in horticulture and forestry which would greatly reduce future pest-plant problems and allow entry of most nonpests. 2. PIER (Pacific Island Ecosystems at Risk), 2002. Dichrostachys cinerea         Summary: Ecology, synonyms, common names, distributions (Pacific as well as global), management and impact information. Available from: http://www.hear.org/pier/species/dichrostachys_cinerea.htm [Accessed 5 February 2003].          Results Page: 1