On March 1, the EFSA issued a positive opinion on the change of the Maximum Residue Limit (MRL) in honey of thiacloprid, a neonicotinoid still authorized in the EU. This MRL increase from 0.05 mg/kg to 0.2 mg/kg.

In June 2008, a surveillance study for metals in honeybees was performed in the Netherlands. Randomly, 150 apiaries were selected. In each apiary, five colonies were sampled. Per apiary, the hive samples were pooled.

Effects of terpenoid thymol were evaluated 1 & 24 hrs after topical application.

An experiment was carried out to investigate the efficacy of Hive Alive to disrupt the plasma membrane/spore coat of Nosema ceranae thereby killing the spores of this microsporidian parasite of honeybees.

The information presented in this Guide will best help beekeepers who recognize that optimum management of Varroa is based on understanding:

Globally, agricultural production systems are under pressure to meet multiple challenges: to sustain or increase production from the same area of land and reduce negative impacts on the environment amid uncertainties resulting from climate change.

Bees are key participators to the fertility of plants and yet they are suffering from losses and disorders. In other studies, double the amount of fungicides were found in colonies showing disorders than in healthy ones, with boscalid among the most frequently detected residues.

Toxicity effects of the neonicotinoid insecticides clothianidin, imidacloprid, and thiamethoxam were tested in the laboratory on different honey bee (Apis mellifera L.) genotypes.

The efficacies of various acaricides in order to control a parasitic mite, the Varroa mite, Varroa destructor, of honey bees, were measured in two different settings, namely, in laboratory caged honey bees and in queen-right honey bee colonies.