Evaluation of aerial spray technologies for adult mosquito control applications
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USDA-ARS, 2771 F&B Road, College Station, USA, TX 77845
US Navy-Naval Entomology Center of Excellence, Bld. 437, Jacksonville, USA, FL 32212
Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland
Lee County Mosquito Control District, P.O. Box 32003, Ft. Myers, USA, FL 33906
Florida A&M University, 4000 Frankford Avenue, Panama City, USA, FL 32405-1933
Submission date: 2012-08-21
Acceptance date: 2013-07-19
Corresponding author
Zbigniew Czaczyk
Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland
Journal of Plant Protection Research 2013;53(3):222-229
Spray droplet size has long been recognized as an important variable that applicators of vector control sprays must be aware of to make the most effective spray applications. Researchers and applicators have several different techniques available to assess spray droplet size from spray nozzles. The objective of this study was to compare the droplet size spectrum produced by three nozzles commonly used in vector control in a high-speed wind tunnel, when characterized using three different laser-based droplet size measurement systems. Three droplet sizing systems: Malvern Spraytec laser diffraction, Sympatec HELOS laser diffraction, and TSI Phase Doppler Particle Analyzer (PDPA), were simultaneously operated, but under different operating conditions, to measure the spray droplet size-spectra for three spray nozzles. The three atomizers: a TeeJet® 8001E even flat fan nozzle, a BETE® PJ high pressure fog nozzles, and a Micronair® AU5000 rotary atomizer were evaluated in a high speed wind tunnel at airspeeds of 53 and 62 m/s (120 and 140 mph). Based on the results of this work, only the BETE® PJ high pressure fog nozzles met the label requirements for both Fyfanon® and Anvil®. While the other nozzle might met the Dv0.5 (VMD – volume median diameter) requirement for Fyfanon®, the resulting Dv0.9 values exceeded labeled size restrictions. When applying Anvil with the BETE PJ high pressure fog nozzles, it is important to use the smaller two orifice sizes. The larger sizes tended to result in Dv0.9 values that exceeded label recommendations.
The authors have declared that no conflict of interests exist.
ASTM International 2004. American Society for Testing Materials Standard E1620: Terminology Relating to Liquid Particles and Atomization. Annual Book of ASTM Standards, ASTM International, West Conshohocken, PA, 7 pp.
Clayton J.S., Sander T.P.Y. 2002. Aerial application for control of public health pests. Aspects Appl. Biol. 66: 371–378.
Dukes J.C., Zhong H., Greer M., Hester P., Hogan D., Barber J.A.S. 2004a. A comparison of two spray nozzle systems used to aerially apply the ultra-low-volume adulticide Fenthion. J. Am. Mosq. Control Assoc. 20 (1): 27–35.
Dukes J.C., Zhong H.E., Greer M., Hester P.G., Hogan D., Barber J.A.S. 2004b. A comparison of two ultra-low volume spray nozzle systems by using a multiple swath scenario for the aerial application of fenthion against caged mosquitoes. J. Am. Mosq. Control Assoc. 20 (1): 36–44.
Haile D.G., Mount G.A., Pierce N.W. 1982. Effect of droplet size of malathion aerosols on kill of caged adult mosquitoes. Mosq. News 42 (4): 576–583.
Hoffmann W.C., Walker T.W., Martin D.E., Barber J.A.S., Gwinn T.L., Smith V., Szumlas D., Lan Y., Fritz B.K. 2007a. Characterization of truck-mounted atomization equipment used in vector control. J. Am. Mosq. Control Assoc. 23 (3): 315–320.
Hoffmann W.C., Walker T.W., Smith V.L., Martin D.E., Fritz B.K. 2007b. Droplet-size characterization of handheld atomization equipment typically used in vector control. J. Am. Mosq. Control Assoc. 23 (3): 312–314.
Hoffmann W.C., Walker T.W., Fritz B.K., Gwinn T., Smith V.L., Szumlas D., Quinn B., Lan Y., Huang Y., Sykes D. 2008. Spray characterization of thermal fogging equipment typically used in vector control. J. Am. Mosq. Control Assoc. 24 (4): 550–559.
Hoffmann W.C., Walker T.W., Gwinn T., Smith V.L., Szumlas D., Lan Y., Fritz B.K. 2009. Spray chararacterization of ultra-low volume sprayers typically used in vector control. J. Am. Mosq. Control Assoc. 25 (3): 332–337.
Hooper G.H.S., Spurgin P.A. 1995. Droplet size spectra produced by the atomization of a ULV formulation of fenitrothion with a Micronair AU5000 rotary atomizer. Crop Prot. 14 (1): 27–30.
Kirk I.W. 2007. Measurement and prediction of atomization parameters from fixed-wing aircraft spray nozzles. Trans. Am. Soc. Agric. Biol. Eng. ASABE 50 (3): 693–703.
Latham M.D. 2008. Aerial adulticiding to control adult mosquitosin Florida: 10 years of improvements in understanding and technology. Aspects Appl. Biol. 84: 281–288.
Latham M., Barber J. 2007. Mosquito control in Florida with a focus on aerial adulticiding. Outlooks Pest Manag. 18 (4): 178–183.
Ledson M., Matthews G.A. 1992. Droplet spectra with thermal foggers. Aspects Appl. Biol. 33: 125–130.
Lothrop H.D., Huang H.Z., Lothrop B.B., Gee S., Gomsi D.E., Reisen W.K. 2007. Deposition of pyrethrins and piperonyl butoxide following aerial ultra-low-volume application in the Coachella Valley, California. J. Am. Mosq. Control Assoc. 23 (2): 213–219.
Mabbett T. 2002. Insect vector-borne diseases and their control by aerial application. Int. Pest Control. 44: 307–309.
Mount G.A. 1985. Ultra-Low-Volume Application of Insecticides for Vector Control. Geneva, World Health Organization, unpublished document WHO/VBC/85.919; available on request from Division of Control of Tropical Diseases, WHO, 1211 Geneva 27, Switzerland, 31 pp.
Teske M.E., Thistle H.W., Hewitt A.J., Kirk I.W., Dexter R.K., Ghent J.H. 2005. Rotary atomizer drop size distribution database. Trans. ASAE 48: 917–921.
WHO. 2006a. Equipment for Vector Control: Specification Guidelines. Geneva, World Health Organization, 58 pp.
WHO. 2006b. Pesticides and their Application. 6th ed. Geneva, World Health Organization, 113 pp.
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