Abstract
STICKY traps in the form of vertical cylinders, and vertical or horizontal plates, are widely used to estimate the numbers of air-borne particles such as pollen, fungus spores, fungicides and insecticides. Although a knowledge of factors controlling deposition is a prerequisite for interpreting trap catches, the relation between the numbers deposited and their concentration in the air sweeping the surface has had scant attention. The problem has been studied here in connexion with epidemic crop diseases, and it has been shown that the size of the trap itself affects the catch to an extent greater than generally recognized.
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GREGORY, P. Deposition of Air-borne Particles on Trap Surfaces. Nature 166, 487 (1950). https://doi.org/10.1038/166487a0
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DOI: https://doi.org/10.1038/166487a0
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