Improving the observation technique of the wettability of greenhouse whitefly (Trialeurodes vaporariorum Westwood)

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Improving the observation technique of the wettability of greenhouse whitefly (Trialeurodes vaporariorum Westwood)

Journal Title: Aparatura Badawcza i Dydaktycza - Year 2015, Vol 20, Issue 3

Abstract

The hydrophobic properties of insects surface protect their organisms from wetting by water. Thanks to these properties pest may reduce wetting by spray droplets. The aim of this work was to improve observation techniques of wetting the greenhouse whitefly (Trialeurodes vaporariorum Westwood) after the application of spray droplets. The study confirmed the usefulness of the tilting stage with built-in flat mirror in evaluation of wetting properties of T. vaporariorum. The presence of abundant epicuticular waxes and dorsal microstructure may explain the hydrophobicity of pupae and larvae. As the surface tension of the liquid decreased the wetting of the insect increased. Measurement of the contact angles after spontaneous deposition of droplets on pupa of T. vaporariorum has not produced satisfactory results due to the shape of the dorsal surface.

Authors and Affiliations

Henryk Ratajkiewicz, Jerzy Wrocławski

Keywords

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EP ID EP199338
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