Pesticide – COLOSS

Testing microbial pest control products in bees, a comparative study on different bee species and their interaction with two representative microorganisms

ArticlesBy SilvioErler 20. January 2025

Background: The evaluation of the impact of pesticides on non-target species, like bees, is a crucial factor in registration procedures. Therefore, standardized test procedures have been developed on OECD level assessing the effects of chemicals on honey bees or bumble bees. Unfortunately, these protocols cannot directly be adapted for testing products that contain microorganisms. Interest…

Nurse honey bees filter fungicide residues to maintain larval health

ArticlesBy SilvioErler 20. January 2025

Residues of plant protection products (PPPs) are frequently detected in bee matrices1–6 due to foraging bees collecting contaminated nectar and pollen, which they bring back to their hive. The collected material is further used by nurse bees to produce glandular secretions for feeding their larvae.7 Potential exposure to PPPs occurs through direct oral ingestion, contact…

Impact of microorganisms and entomopathogenic nematodes used for plant protection on solitary and social bee pollinators

ArticlesBy SilvioErler 17. March 2022

Abstract Pollinating bees are stressed by highly variable environmental conditions, malnutrition, parasites and pathogens, but may also by getting in contact with microorganisms or entomopathogenic nematodes that are used to control plant pests and diseases. While foraging for water, food, or nest material social as well as solitary bees have direct contact or even consume…

Long-term field-realistic exposure to a next-generation pesticide, flupyradifurone, impairs honey bee behaviour and survival

ArticlesBy SimoneTosi 1. July 2021

Abstract: Simone Tos, James C. Nieh, Annely Brandt, Monica Colli, Julie Fourrier, Herve Giffard, Javier Hernández-López, Valeria Malagnini, Geoffrey R. Williams, Noa Simon-Delso The assessment of pesticide risks to insect pollinators have typically focused on short-term, lethal impacts. The environmental ramiﬁcations of many of the world’s most commonly employed pesticides, such as those exhibiting systemic…

Metabolomics unveils the influence of dietary phytochemicals on residual pesticide concentrations in honey bees

ArticlesBy PerKryger 22. March 2021

The losses of honey bee colonies and declines of other insect pollinators have been associated with negative effects of pesticides. Honey bees as well as other pollinators are nectar and pollen foragers and thus are exposed to an extensive range of phytochemicals. Understanding the synergistic, additive, and antagonistic effects of plant secondary metabolites and pesticides…