The permeability of artificial windbreaks and the distribution of flying insects in the leeward sheltered zone
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TL;DR
The number of flying insects in the sheltered zone to leeward of artificial windbreaks of 0, 25, 45, 45 and 70% permeability was greater than in unsheltered areas.
Abstract
SUMMARY The number of flying insects in the sheltered zone to leeward of artificial windbreaks of 0, 25, 45 and 70% permeability was greater than in unsheltered areas. Insects accumulated in the air nearer to dense windbreaks than to more permeable ones, and the position of maximum aerial density of insects coincided with that of maximum shelter. The more dense the windbreak the greater the numbers in the air to leeward. Absolute wind speed slightly affected the position of maximum aerial density behind a 45% permeable fence.