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EFFICACY OF ARTHITROL BAIT FORMULATIONS AND MAXFORCE GEL BAIT AGAINST AN INSECTICIDE-RESISTANT STRAIN OF THE GERMAN COCKROACH, 1995

EFFICACY OF ARTHITROL BAIT FORMULATIONS AND MAXFORCE GEL BAIT AGAINST AN INSECTICIDE-RESISTANT... (J2) URBAN, STRUCTURAL, AND INDUSTRIAL EFFICACY OF ARTHITROL BAIT FORMULATIONS AND MAXFORCE GEL BAIT AGAINST AN INSECTICIDE-RESISTANT STRAIN OF THE GERMAN COCKROACH, 1995 A. Ameen, W. Kaakeh, N. Kaakeh, and G. Bennett Department of Entomology Center for Urban and Industrial Pest Management Purdue University West Lafayette, IN 47907-1158 Phone: (765) 494-7740 Fax: (765) 496-2295 E-mail: gary_bennett@entm.purdue.edu German cockroach: Blattella germanica (L.) The efficacy of Arthitrol granular, Arthitrol gel, Arthitrol gel + Bitrex and Maxforce gel baits was evaluated in the laboratory against an insecticide-resistant strain of the German cockroach. This strain ('Muncie '86') was field-collected from public housing apartments located in Muncie, IN, in 1986 and maintained in culture at Purdue University ever since. Twenty test insects consisting of six newly eclosed adult males (<48 h old), four newly eclosed virgin females (<48 h), and 10 fourth-instar nymphs (<48 h old) were selected for each treatment and treatments were replicated four times. An untreated check was set up with a similar number of test insects that were not exposed to toxic bait, but provided with Wayne Rodent Blox Chow as a food source. Plastic boxes (30 by 24 by 10 cm), providing 720 cm of floor area, were used as arenas for these tests. Harborages were constructed from noncorrugated cardboard pieces positioned in the center of the arenas. Two waterers (cotton-stoppered, 25-ml glass vials) were positioned along the walls of the arena, and two food dispensers (2 by 2-cm plastic weight boats) were glued to the floor of the arena corners. Baits were placed in these food dispensers. Resources were positioned so as to allow an unobstructed, 1-cm runway around the perimeter of the arena floor. Arenas were made escape-proof by the use of ventilated, friction-fitted lids, and the application of an impassable barrier of petrolatum and mineral oil (1:2) mixture to the arena walls. This barrier was applied to within 1-2 cm of the arena floor to prevent test insects from climbing the arena walls, thereby forcing all exploratory behaviors to the arena floor and the arena's provisions. Test insects were released into the arenas to acclimate for 24 h before treatments were added. Dead insects were collected from test arenas, counted, and recorded by treatment at 1, 3, 5, 7, and 9 days. Experimental design was a CRD. Treatment efficacy was determined by using an ANOVA model to analyze mortality data and Tukey's test was used to separate the means. The granular formulation of Arthitrol was the best treatment, because it gave significantly higher acute toxicity than the other treatments. Long-term toxicity was however not significantly different among treatments. In addition, there were no significant differences between the performance of the Arthitrol gel alone compared with the gel formulation + 25 ppm Bitrex, with respect to acute and long-term toxicities. In general, mortality of test insects was significantly higher for all treatments compared with the untreated check. At 9 days, mortality of test insects averaged 86% for the Maxforce gel bait and 100% for each of the three Arthitrol bait formulations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

EFFICACY OF ARTHITROL BAIT FORMULATIONS AND MAXFORCE GEL BAIT AGAINST AN INSECTICIDE-RESISTANT STRAIN OF THE GERMAN COCKROACH, 1995

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Oxford University Press
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© Published by Oxford University Press.
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2155-9856
DOI
10.1093/amt/27.1.J2
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Abstract

(J2) URBAN, STRUCTURAL, AND INDUSTRIAL EFFICACY OF ARTHITROL BAIT FORMULATIONS AND MAXFORCE GEL BAIT AGAINST AN INSECTICIDE-RESISTANT STRAIN OF THE GERMAN COCKROACH, 1995 A. Ameen, W. Kaakeh, N. Kaakeh, and G. Bennett Department of Entomology Center for Urban and Industrial Pest Management Purdue University West Lafayette, IN 47907-1158 Phone: (765) 494-7740 Fax: (765) 496-2295 E-mail: gary_bennett@entm.purdue.edu German cockroach: Blattella germanica (L.) The efficacy of Arthitrol granular, Arthitrol gel, Arthitrol gel + Bitrex and Maxforce gel baits was evaluated in the laboratory against an insecticide-resistant strain of the German cockroach. This strain ('Muncie '86') was field-collected from public housing apartments located in Muncie, IN, in 1986 and maintained in culture at Purdue University ever since. Twenty test insects consisting of six newly eclosed adult males (<48 h old), four newly eclosed virgin females (<48 h), and 10 fourth-instar nymphs (<48 h old) were selected for each treatment and treatments were replicated four times. An untreated check was set up with a similar number of test insects that were not exposed to toxic bait, but provided with Wayne Rodent Blox Chow as a food source. Plastic boxes (30 by 24 by 10 cm), providing 720 cm of floor area, were used as arenas for these tests. Harborages were constructed from noncorrugated cardboard pieces positioned in the center of the arenas. Two waterers (cotton-stoppered, 25-ml glass vials) were positioned along the walls of the arena, and two food dispensers (2 by 2-cm plastic weight boats) were glued to the floor of the arena corners. Baits were placed in these food dispensers. Resources were positioned so as to allow an unobstructed, 1-cm runway around the perimeter of the arena floor. Arenas were made escape-proof by the use of ventilated, friction-fitted lids, and the application of an impassable barrier of petrolatum and mineral oil (1:2) mixture to the arena walls. This barrier was applied to within 1-2 cm of the arena floor to prevent test insects from climbing the arena walls, thereby forcing all exploratory behaviors to the arena floor and the arena's provisions. Test insects were released into the arenas to acclimate for 24 h before treatments were added. Dead insects were collected from test arenas, counted, and recorded by treatment at 1, 3, 5, 7, and 9 days. Experimental design was a CRD. Treatment efficacy was determined by using an ANOVA model to analyze mortality data and Tukey's test was used to separate the means. The granular formulation of Arthitrol was the best treatment, because it gave significantly higher acute toxicity than the other treatments. Long-term toxicity was however not significantly different among treatments. In addition, there were no significant differences between the performance of the Arthitrol gel alone compared with the gel formulation + 25 ppm Bitrex, with respect to acute and long-term toxicities. In general, mortality of test insects was significantly higher for all treatments compared with the untreated check. At 9 days, mortality of test insects averaged 86% for the Maxforce gel bait and 100% for each of the three Arthitrol bait formulations.

Journal

Arthropod Management TestsOxford University Press

Published: Jan 1, 2002

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