Detection of the desiccant and plant growth regulator

We here describe the results of the investigation of a honeybee hive that exhibited symptoms of poisoning in the July 2013. During the summer, only a few pesticides such as desiccants, typically quaternary ammonium (quat) and glyphosate formulations, are applied. We therefore analysed samples of not only a wide range of pesticides, but also desiccants. Additionally,…

Two new articles published

Two new articles of our team: New article 1. Vejnovic Branislav, Stevanovic Jevrosima, Schwarz Ryan S, Aleksic Nevenka, Mirilovic Milorad, Jovanovic Nemanja M, Stanimirovic Zoran (2017) Quantitative PCR assessment of Lotmaria passim in Apis mellifera colonies co-infected naturally with Nosema ceranae. Journal of Invertebrate Pathology, doi: 10.1016/j.jip.2017.11.003. https://www.sciencedirect.com/science/article/pii/S0022201117303245 New article 2. Glavinic Uros, Stankovic Biljana,…

In vitro study on enzymatic systems of honeybees

In this study we measured in vitro honey bee enzyme activities in presence of the synergist piperonyl butoxide (PBO) and some new benzodioxole and dihydrobenzofuran derivatives through absorbance and fluorescence spectrophotometric assays, to determine if and to what extent detoxification systems and acetylcholinesterases are affected by these compounds. Both Italian (Italy) and Carniolan (Czech Republic)…

Origin of antimicrobial properties of propolis

Abstract Natural honey bee products, especially propolis are well known for their biological properties. However, less well known are the impact of propolis’ single phenolic substances and variation across different landscapes, geographic locations and botanical origins. Here, we determined the chemical composition of propolis samples collected in different geographic areas of Romania with a continental…