Varroa destructor resistance to tau-fluvalinate: relationship between in vitro phenotypic test and VGSC L925V mutation.

Background: Varroa destructor is a parasitic mite of the honey bee, Apis mellifera. Its presence in colonies can lead to a collapse within a few years. The use of acaricides has become essential to manage the hive infestation.

Modelling the impact of Apivar treatment on a Varroa mite population and the influence of resistance.

Background: Varroa destructor is a parasite of honeybees. It causes biological damage leading to the colony collapse in the absence of treatment. In recent years, acaricide resistance has emerged in Varroa mites, leading to a decrease in treatment efficacy.

PAH7 concentration reflects anthropization: A study using environmental biomonitoring with honeybees.

Polycyclic aromatic hydrocarbons (PAHs) are environmental pollutants, mainly due to anthropogenic emission. In this study, we used honeybees as bioindicators of PAHs pollution in 36 industrial sites distributed in 14 French departments, covering more than 950 km area of biomonitoring. Honeybees were sampled three times a year (spring, summer and autumn), during a period covering 2016 to 2019.

Inventory of Varroa destructor susceptibility to amitraz and tau-fluvalinate in France.

Varroa destructor is one of the greatest threats for the European honeybee, Apis mellifera. Acaricides are required to control mite infestation. Three conventional chemical acaricide substances are used in France: tau-fluvalinate, flumethrin and amitraz.