Abstract

Raddi, native to Argentina, Brazil, and Paraguay(Barkley 1944), is a non-native invasive weed inFlorida (Langeland & Burks 2008), California(Randall 2000), Hawaii (Hight et al. 2003), andTexas (Gonzalez & Christoffersen 2006). Thiswoody ornamental most likely was introducedinto Florida before 1900 (Morton 1978; Mack1991). It eventually escaped cultivation and is aserious problem in disturbed sites (e.g., fallowfarmlands, ditch banks), natural communitiessuch as pinelands, hardwood hammocks andmangrove forests, and the Everglades NationalPark (Toops 1979; Ewel et al. 1982).During the mid-1980s, Brazilian peppertreewas targeted for classical biological control inFlorida (Bennett et al. 1990; Habeck 1995). Thelong-term goal of this project is to introduce acomplex of specialist natural enemies into Floridathat are capable of selectively attacking and re-ducing the invasiveness of Brazilian peppertree.Surveys for natural enemies within the areas ofnatural distribution of Brazilian peppertree havebeen conducted, and biological and host rangestudies have been completed for several candi-date biological control agents (Cuda et al. 2006).In May 2007, the federal interagency TechnicalAdvisory Group for the Introduction of BiologicalControl Agents of Weeds (TAG) recommended therelease from quarantine of the stem-attackingthrips

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