COMPARISON OF A SYNERGIZED AND NON-SYNERGIZED ADULTICIDE

COMPARISON OF A SYNERGIZED AND NON-SYNERGIZED ADULTICIDE

Jeffrey O’Neill

Zoëcon Professional Products Division of Central Life Sciences

22 Christina Court

Bear, DE 19701

ABSTRACT

The need to qualify new mosquito adulticides is important to applicators in the mosquito control industry, the underlining question, how do products without PBO compare to traditional synergized products for mosquito control? Applicators need to have the confidence that their choices are efficacious and meet or exceed their current standards. Central Life Sciences introduced a new ULV mosquito adulticide formulation in the summer of 2010, and like most new products potential customers need to gain the knowledge the introduced formulation, Zenivex E4, is a viable choice as an ULV mosquito adulticides. Natrona County Public Health, Casper, Wyoming with the assistance of Central Life Sciences conducted a ground ULV mosquito adulticide efficacy trial comparing Zenivex E4 and Biomist 4+4. Booth products were applied at a targeted flow rate of six ounces per minute at a speed of 10 miles per hour. The products were applied from a 1000 foot drive line positioned 100 feet from a 3 by 3 grid with 100 foot spacing. The drive line and grid spacing are standardized procedures designed to evaluate the 300 foot spray swath produced by ULV truck mounted spray equipment. Two replications were performed for both products using Culex quinquefasciatus as the test species. Twenty Four hour mortality in replication 1 for Zenivex E4 was 97% and 100% for Biomist 4 + 4. Twenty Four hour Mortality in replication 2 for Zenivex E4 was 99% and 98% for Biomist 4+4. During this product comparison Zenivex E4 performed well and met the standards necessary to be considered as a viable choice for mosquito abatement. Factors will be needed to guide comprehensive, long-term preventive health measures” (Gubler et al. Environmental Health Perspectives, 2001).