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
Related Articles
- EP ID EP199338
- DOI -
- Views 93
- Downloads 0
Laboratory reactor for testing photocatalyst reactions in the liquid reagents – the solid catalyst system
The construction and the principle of operation of the laboratory reactor for testing photocatalyst reactions in the liquid reagents – the solid catalyst system have been described in the presented paper. Construction of...
The conductivity of the milk kefir model reduced by enzymatic hydrolysis of lactose content
Measurements of electrical values reflect the dynamics for development of lactic acid bacteria. They may be, in addition to pH measurement, a tool for a technologist to monitor the fermentation process and changes taking...
Cohesiveness and firmness of fermented milk with an increased proportion of whey proteins pl
Milk fermentation process can be controlled not only by the choice of a type and dose of characteristic microflora, but also by altering the composition of the processed milk. The scope and dynamics of milk souring proce...
Adhesion measurement of pressure-sensitive adhesives
The term pressure-sensitive adhesive (PSA) has a very precise technical definition and was dealt with extensively in the chemical literature. Pressure-sensitive adhesives (PSA) are nonmetallic materials used to bond othe...
Ocena możliwości zastosowania pneumatycznego przetwornika długości do pomiarów odchyłki okrągłości
W artykule przedstawiono wyniki pomiarów odchyłki okrągłości uzyskanych bezstykową metodą pneumatyczną. Rezultaty przeprowadzonych badań porównano z metodą stykową, gdzie odchyłki okrągłości wyznaczano za pomocą urządzen...