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The Pick-up of Spray Droplets by flying Locusts

Published online by Cambridge University Press:  10 July 2009

N. W. Wootten  and
K. F. Sawyer
N. W. Wootten
Affiliation:
Anti-Locust Research Centre,
K. F. Sawyer
Affiliation:
Ministry of Supply.
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Extract

Measurements of the Horizontal Equivalent Area (HEA) of flying locusts and the toxic efficiency of Mk. IV DNC solution, as a function of spray droplet size, have been made using Schistocerca gregaria (Forsk.) flying “ naturally ” in a wind tunnel. The experimental conditions, including visual stimuli, for “ natural ” flight were determined by means of a flight balance. The observed values of locust airspeed varied from 2·5 to 6·5 metres per second with a mean value of about 3·2 metres per second.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 45 , Issue 1 , March 1954 , pp. 177 - 197
Copyright
Copyright © Cambridge University Press 1954

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References

Gunn, D. L., Graham, J. F. & others. (1948). Aircraft spraying against the Desert Locust (Schistocerca gregaria Forskål) in Kenya, 1945.—Anti-Locust Bull., no. 4, 121 pp.Google Scholar
Gunn, D. L., Lea, H. A. F. & others. (1948). Locust control by Aircraft in Tanganyika.—153 pp., London, Anti-Locust Res. Cent.Google Scholar
Gunn, D. L., Perry, F. C. & others. (1948). Behaviour of the Desert Locust (Schistocerca gregaria Forskål) in Kenya in relation to aircraft spraying.—Anti-Locust Bull., no. 3, 70 pp.Google Scholar
Kennedy, J. S., Ainsworth, M. & Toms, B. A. (1948). Laboratory studies on the spraying of locusts at rest and in flight.—Anti-Locust Bull., no. 2, 64 pp.Google Scholar
Sawyer, K. F. (1950). Aerial curtain spraying for locust control: a theoretical treatment of some of the factors involved.—Bull. ent. Res., 41, pp. 439–457.CrossRefGoogle Scholar
Walton, W. H. & Prewett, W. C. (1949). The production of sprays and mists of uniform drop size by means of spinning disc type sprayers.—Proc. phys. Soc. Lond., (B) 62, pp. 341–350.CrossRefGoogle Scholar
Weis-Fogh, T. (1950). An aerodynamic sense organ in locusts.—Proc. 8th int. Congr. Ent. Stockholm, 1948, pp. 584–588.Google Scholar