Environmental monitoring involves the quantification of microscopic cells and particles such as algae, plant cells, pollen, or fungal spores. Traditional methods using conventional microscopy require expert knowledge, are time-intensive and not well-suited for automated high throughput. Multispectral imaging flow cytometry (MIFC) allows measurement of up to 5000 particles per second from a fluid suspension and…
The increasing loss of honey bee colonies is assumed to be caused by various factors such as habitat degradation, parasites, pathogens, or the exposure to environmental pollutants like pesticides in agriculture practice. Different bee-related products like honey, bee bread, wax, and pollen can be contaminated by pesticides and some of them might affect colony health.…
To avoid potential adverse side effects of chemical plant protection products, microbial pest control products (MPCP) are commonly applied as biological alternatives. This study aimed to evaluate the biosafety of a MPCP with the active organism Bacillus thuringiensis ssp. aizawai (strain: ABTS-1857). An in-hive feeding experiment was performed under field-realistic conditions to examine the effect…
This mini-review aims at raising the interest in contractile phage tail-like particles (CPTPs) of bacteria as an efficient and pest-specific alternative to conventional chemical pesticides in agriculture, horticulture and forestry. CPTPs are used by various bacteria in diverse environments for interbacterial competition or for manipulation of eukaryotic hosts, such as fungi or insects. This review…
Abstract This article presents managed honey bee colony loss rates over winter 2019/20 resulting from using the standardised COLOSS questionnaire in 37 countries. Six countries were from outside Europe, including, for the first time in this series of articles, New Zealand. The 30,491 beekeepers outside New Zealand reported 4.5% of colonies with unsolvable queen problems,…
Fully funded PhD position in evolutionary genomics of insect immunity at the University of Ulm, Germany. Title: ImmuNov – Genomics and epigenomics of immune innovations in insects. We are recruiting a PhD student to study the evolution of innate immunity in insects. The project involves comparative analysis of the gene expression response (i.e. transcriptomics) of…
A honey bee colony’s ability to grow and develop is dependent on adequate nutrition. Bees collect pollen from flowers as a source of protein, fat, vitamins, and minerals. The crude protein content of corn pollen is considered low, around 15%; however, bees frequently visit the male flowers of the tassels for pollen. In this study,…
Dear COLOSS members, According to our statutes, we will democratically elect a new Executive Committee (EC) at our forthcoming General Assembly (GA) associated with the next COLOSS conference. The EC is right at the core of our network. COLOSS can simply not function without it. Therefore, it is crucial that dedicated members interested in actively…
47th Apimondia Congress in Istanbul, Turkey. Let’s celebrate the 125th Anniversary of Apimondia Congresses between 24-28 August! Participants from 98 different countries registered to our Congress until today! That’s why an Apimondia Congress is “World’s largest gathering place for Beekeeping”. We are looking forward to broadcast World’s largest gathering event, the 47th Apimondia Congress online.…
Flumethrin is one of the few acaricides that permit the control of Varroa disease or varroosis in bee colonies. However, flumethrin accumulates in hive products. We previously discovered that sublethal doses of flumethrin induce significant physiological stress in honeybees (Apis mellifera L.), however its potential impacts on the honeybee gut microenvironment remains unknown. To fill…