Názov/Title: Продуценты пади и характеристика падевого мёда / Dew producers and characteristics of honeydew

Typ dokumentu/Document Type: Vedecká monografia / Scientific Monograph

Autori/Authors: Mykola Lisovyy, Dina Lisohurska, Leonora Adamchuk

ISBN: ISBN 978-80-552-2275-2

DOI: https://doi.org/10.15414/2020.9788055222752

Vydavateľ/Publisher: Slovak University of Agriculture in Nitra, Slovakia

Rok, strany/PY, pages: 2020, 132 p.

Publikované online/Published on-line: 2020-12-31

Jazyk/Language: rus

Abstrakt/Abstract Dew – sugar-containing secretions of sucking herbivorous insects. The most significant representatives of these insects for beekeeping belong to the order of arthropods (Rhynchota). In central Europe, these are aphids of the genus Lachnus and robber flies of the genus Lecania. The most important coniferous plants for honeydew growers are Picea abies, Abies alba, various species of Pinus sp. and Larix sp.; deciduous trees include Quercus sp ., Tilia sp. and Acer sp.Freshly isolated dew is transparent like water, contains 5–18 % dry matter, has a specific gravity of 1.0 to 1.3, pH 5.1–7.9 and a total nitrogen content of 0.2–1.8 % dry matter. Under the influence of air, the droplets change color, the concentration of dry matter, depending on the air humidity, can rise to 30–50 % and higher. The content of carbohydrates in honeydew is 90–95 % of dry mass. The monograph describes the species of insects that are producers of dew, the composition of honeydew honey from different countries of the world is given. The methodology for studying the presence of dew in honey is described. The research results of samples of Ukrainian honeydew honey and their pollen spectrum are presented.

Plný text/Fulltext (Flipbook)