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1 March 2012 Herbivorous Insects Associated with Ludwigia peploides (Onagraceae) in the Southern United States
Nathan E. Harms, Michael J. Grodowitz
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Abstract

The wetland plant Ludwigia peploides (floating primrose-willow) often is problematic in the southern USA, as well as elsewhere in its introduced range. Surveys to identify potential herbivorous insects to use as biological controls have focused on South America, but implementing a management program with foreign insects in the USA is difficult and can take years of testing in quarantine. During 2006–2008, populations of floating primrose-willow were surveyed in the southern USA to determine presence and extent of native herbivorous insects. At least nine species were identified, represented mainly by weevils (Curculionidae) and leaf beetles (Chrysomelidae). Of these, two were undescribed species of weevils (Auleutes), and six species, including Tyloderma sphaerocarpae and Chaetocnema, have never been associated with floating primrose-willow.

Nathan E. Harms and Michael J. Grodowitz "Herbivorous Insects Associated with Ludwigia peploides (Onagraceae) in the Southern United States," The Southwestern Naturalist 57(1), 123-127, (1 March 2012). https://doi.org/10.1894/0038-4909-57.1.123
Received: 21 April 2010; Accepted: 1 June 2011; Published: 1 March 2012
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