Entomologia Experimentalis et Applicata (2007) 123, 25-33

Aqeel Ahmad, Bhadriraju Subramanyam and Ludek Zurek (2007)
Responses of mosquitoes and German cockroaches to ultrasound emitted from a random ultrasonic generating device
Entomologia Experimentalis et Applicata 123 (1), 25-33
Abstract: The repellency of ultrasound to females of two species of mosquitoes, Anopheles quadrimaculatus Say and Anopheles gambiae Giles (Diptera: Culicidae), and male and female German cockroaches, Blattella germanica (L.) (Blattodea: Blattellidae), was evaluated under laboratory conditions using a random ultrasonic device developed at Kansas State University. This device produces ultrasound in the 20-100 kHz frequency range and random sound patterns at any frequency range. Under the particular settings described in the paper, this ultrasonic device produced sound pressure levels from 91 to 101, 91 to 102, and 90 to 100 dB at the top, bottom, and side panels of the test chamber, respectively (0 dB = 20 micropascals). Sound pressure levels recorded at the center of the top, bottom, and side panels were higher than those recorded at the panel edges. Ultrasound from the random ultrasonic device failed to repel mosquitoes and German cockroaches at the different frequency ranges evaluated. Our results confirm previous findings with commercial devices producing constant sound patterns that ultrasound in general is not a promising tool for repelling mosquitoes and cockroaches.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Aqeel Ahmad, Ludek Zurek, Bhadriraju Subramanyam

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Anopheles gambiae
	Blattella germanica
	Anopheles quadrimaculatus