Wind-Tunnel Studies on the Collection of Airborne Spray Droplets by Flying Locusts
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Date
1994
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
International Journal of Tropical Insect Science
Abstract
In view of the present environmental awareness, the reduction of spray wastage, which in turn lessens environmental contamination, can be achieved by reducing spray volumes and improvement on spray efficiency through the use of correct ranges of spray droplet sizes. Published data on droplets collected by some insects consistently suggest that the optimum droplet sizes lie below 60 μm.
An experiment was conducted in a wind-tunnel to assess the locust collection efficiency when subjected to a spectrum of droplet size ranges with a view to determine the optimum droplet size.
Locusts were induced to fly in a wind-tunnel and then exposed to spray droplets which were produced by a spinning disc atomiser. Droplets collected on antennae, head, abdomen, legs and wings were sized and counted. The collection efficiency at wind-speeds ranging from 2 m/sec to 6 m/sec was calculated for the different body parts in the droplet size range 10–40, 40–60 and 60–80 μm. The calculated collection efficiency for the 10–40 μm size range was comparatively higher for all locust body parts.
Description
Keywords
Wind-tunnel, airborne spray, flying locusts
Citation
Ndayanbo-Mugisha, F. (1994). Wind-tunnel studies on the collection of airborne spray droplets by flying locusts. International Journal of Tropical Insect Science, 15(2), 215-222.https://doi.org/10.1017/S1742758400015496