Tuesday, 19 November 2002

This presentation is part of : Display Presentations, Subsection Fb. Urban Entomology

Areawide suppression of subterranean termites (Isoptera: Rhinotermitidae) with a property by propery approach using two chitin synthesis inhibitors and a microbial in a nutritionaly-based bait matrix

M. Guadalupoe Rojas and Juan A. Morales-Ramos. USDA-ARS, FSTRU, 1100 Robert E. Lee Blvd, New Orleans, LA

A field test of bait systems using Diflubenzuron, Chlorfluazuron, BioBlast, and a combination of Diflubenzuron and BioBlast in a nutritionally-based bait matrix was implemented in Poplarville, Mississippi in an area-wide basis. Six neighborhoods were chosen for this study. Three neighborhoods were treated with Diflubenzuron, one with Chlorfluazuron, one with BioBlast, and one with a combination of BioBlast and Diflubenzuron. Every property of each neighborhood was treated by installing ENSISTERX Exterra-type undergrownd stations around structures every 5 m. The stations were monitored monthly for subterranean termite activity. Active stations were treated with 150 g of bait. Bait consummed was recorded monthly by remooving empty bait bags from the stations. The cummulative number of active stations was recorded and compared with the observed number of active stations to calculate changes in the percentage of active stations over time. Significant reduction of termite activity was recorded in all the neighborhoods 18 months of treatment. The Diflubenzuron treatment showed complete suppression of termite activity in 50% of the treated properties after 24 months of treatment.

Species 1: Isoptera Rhinotermitidae Coptotermes formosanus (Formosan subterranean termite)
Species 2: Isoptera Rhinotermitidae Reticulitermes flavipes (eastern subterranean termite)
Species 3: Isoptera Rhinotermitidae Reticulitermes virginicus
Keywords: diflubenzuron, metarryzium

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