Георги Куров
20.04.2015, 06:47
В далечната 2003 година ми попадна резюмето на този доклад и копирах линка, след това го свалиха от сайта. Мисля че е много ценна информацията в него и за това отварям тази тема и качвам линка като HTML формат, дано всички да могат да го отворят. Например защо до сега не съм третирал с тимол и никога няма да го направя. Според изседванията 10 % разтвор на тимол внесен чрез напоени ленти има ефект от 54-85 % смъртност на акара, но 30 % разтвор на тимол е вреден за пчелите. Слабо действие върху акара и вреди върху пчелите от тимола, да се замислят колегите от Странджа за причините за голямата им смъртност. Цитат от доклада- The effect of origanum oil and thymol applications in honeybee colonies on population levels of Varroa jacobsoni in a subtropical climate
Origanum oil and thymol, naturally occurring compoundsof plant origin, were evaluated in bee colonies containing brood year-round in a subtropical climate as alternate acaricides of an integrated control program for Varroa jacobsoni.
Treating colonies in March-April with 20 and 33% origanum oil impregnated in cardboards resulted in 85 and 91% mortality of Varroa , respectively. The use of pure origanum oil during summer was harmful to bee colonies. Application of 10% of thymol (in cardboards) to bee colonies resulted in 54-85% mortality of Varroa, but 30% thymol was harmful to the bee colonies. The constraints on the use of essential oils to control Varroa in a subtropical climate are discussed. 13b(33)
Origanum oil and thymol, naturally occurring compoundsof plant origin, were evaluated in bee colonies containing brood year-round in a subtropical climate as alternate acaricides of an integrated control program for Varroa jacobsoni.
Treating colonies in March-April with 20 and 33% origanum oil impregnated in cardboards resulted in 85 and 91% mortality of Varroa , respectively. The use of pure origanum oil during summer was harmful to bee colonies. Application of 10% of thymol (in cardboards) to bee colonies resulted in 54-85% mortality of Varroa, but 30% thymol was harmful to the bee colonies. The constraints on the use of essential oils to control Varroa in a subtropical climate are discussed. 13b(33)