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1 October 2000 Evaluation of Control Measures for Black Carpenter Ant (Hymenoptera: Formicidae)
Jason M. Tripp, Daniel R. Suiter, Gary W. Bennett, John H. Klotz, Byron L. Reid
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Current control methods for the black carpenter ant, Camponotus pennsylvanicus (De Geer), include the use of remedial and preventative residual sprays as well as toxic baits. We evaluated the acceptance of three baits (Maxforce, Niban, and Baygon) to field colonies of the black carpenter ant in the spring and fall. Maxforce bait granules were more readily accepted than either Niban or Baygon bait granules in the spring. A change in food preference from protein to sugar by the black carpenter ant appeared to reduce the number of Maxforce bait granules removed in the fall, resulting in no differences in bait acceptability. The longevity of Dursban 50W and Tempo 20WP were evaluated in the summer and fall on painted wood panels. Panels aged outside for 15 d under prevailing weather conditions exhibited increased LT50 values. For each sampling period, panels aged on the south face (in the sun) exhibited less insecticidal activity (i.e., large LT50 values) than panels on the north face (shaded; small LT50 values). At each sampling period, Tempo 20WP provided smaller LT50 values than Dursban 50W. Because of changing dietary preferences, our data highlight the importance of using various bait types for carpenter ant control. Moreover, the application of residual spays should be made to locations protected from direct sunlight.

Jason M. Tripp, Daniel R. Suiter, Gary W. Bennett, John H. Klotz, and Byron L. Reid "Evaluation of Control Measures for Black Carpenter Ant (Hymenoptera: Formicidae)," Journal of Economic Entomology 93(5), 1493-1497, (1 October 2000).
Received: 23 March 2000; Accepted: 1 June 2000; Published: 1 October 2000

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black carpenter ant
Camponotus pennsylvanicus
residual spray
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