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United States Department of Agriculture

Agricultural Research Service

Research Project: DEVELOPING SUSTAINABLE CONTROLS FOR THE SUPPRESSION OF THE INVASIVE CARIBBEAN CRAZY ANT (PARATRECHINA PUBENS) IN NATURAL & URBAN LANDSCAPES

Location: Imported Fire Ant and Household Insects

2011 Annual Report


1a.Objectives (from AD-416)
Develop or identify environmentally compatible chemical controls to provide immediate, effective management of the invasive Caribbean crazy ant (CCA), Paratrechina pubens, and conduct an initial search for biological organisms that could provide long-term, sustainable control of CCA.


1b.Approach (from AD-416)
1) Identify/develop an ant bait formulation that CCA will distribute among multiple nest sites located beyond the bait application site. 2) Survey CCA populations for the presence of pathogens that can potentially be utilized as biological control agents for long term, sustainable suppression of CCA.


3.Progress Report

This project is related to Objective 4 of this in-house project: Develop integrated pest management plans that utilize available control methods, perform comprehensive risk assessment, and that can be adapted to specific stakeholder needs, including local eradication.

The objectives of this cooperative research project are to develop or identify environmentally compatible chemical controls to provide immediate, effective management of the invasive Caribbean crazy ant (CCA), Paratrechina pubens, and conduct an initial search for biological organisms that could provide long-term, sustainable control of CCA. Laboratory evaluations of commercial ant baits identified several baits that quickly kill small CCA colonies. However, baits which contain insect growth regulating (IGR) active ingredients were ineffective, probably due to inconsistent bait ingestion. New lures were evaluated for consistent consumption by CCA and will be formulated with IGRs for further assessment. IGR baits can potentially be more effective against pest ants with large, interconnected colonies. CCA from four regions in Florida were collected and sequenced. This information will be used to survey CCA populations by gene homology for pathogens that can potentially be utilized as biological control agents for self-sustaining population suppression.


Last Modified: 11/28/2014
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