Resistance to cephalosporins and quinolones in Escherichia coli isolated from irrigation water from the Rímac river in east Lima, Peru.

Objectives.: To evaluate the presence and sensitivity to antimicrobials of Escherichia coli strains isolated from 24 irrigation water samples from the Rimac river of East Lima, Peru.

Materials And Methods.

Comparison of APIStrip passive sampling with conventional sample techniques for the control of acaricide residues in honey bee hives.

Western honey bees are very sensitive bioindicators for studying environmental conditions, hence frequently included in many investigations. However, it is very common in both research studies and health surveillance programs to sample different components of the colony, including adult bees, brood and their food reserves. These practices are undoubtedly aggressive for the colony as a whole, and may affect its normal functioning and even compromise its viability.

Acceptance by Honey Bees of Wax Decontaminated through an Extraction Process with Methanol.

Honey bees face serious threats. These include the presence of the mite in hives, which requires the use of acaricides to control. The constant recycling of old wax exacerbates the problem, and results in the accumulation of residues in the beeswax, which is a problem for the viability of the colony.

Coumaphos residue transfer to honey bee brood (Apis mellifera) in realistic scenarios.

Coumaphos is a veterinary treatment administered for the control of Varroa destructor in honey bee colonies. The detection of its residues, however, has been frequently reported in beeswax. This study is pioneer to investigate whether the honey bee brood is exposed to coumaphos via contact or by ingestion of food resources due to a residue transfer inside the bee hive.