Publications by authors named "Timm Knautz"
Bee sensitivity derived from acute contact tests biased by standardised protocols?
Ecotoxicol Environ Saf
October 2024
Article Synopsis
- The study evaluates the effects of droplet volume in acute contact tests with different bee species using dimethoate, finding that larger droplet sizes increase the response magnitude in bees.
- The research highlights that the time it takes for symptoms to appear differs among species, with bumblebees and red mason bees exhibiting slower responses compared to honeybees and alfalfa leafcutter bees.
- The results suggest that standardizing tests across species can lead to biased conclusions about sensitivity, particularly favoring smaller bee species due to the relative dosing surface area.
Background: The Asian tiger mosquito Aedes albopictus is an extremely invasive, globally distributed and medically important vector of various human and veterinary pathogens. In Germany, where this species was recently introduced, its establishment may become modulated by interspecific competition from autochthonous mosquito species, especially Culex pipiens (s.l.
View Article and Find Full Text PDFThe Asian tiger mosquito Aedes albopictus (Skuse, 1894) is a globally invasive prominent vector of viral and parasitic pathogens. To soundly guide insecticide use in control programs it is crucial to use standardized test systems under rigorously controlled environmental conditions that allow for comparisons across laboratories. An acute standard test procedure (24 h) for insecticide resistance monitoring of mosquitoes has been published by the World Health Organization in 1998, but a standardized chronic test to monitor sublethal insecticide effects on the life cycle of mosquitoes does not yet exist.
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