# Glyphosate impact on honeybees and animal health

> Live situation record from CLSTR: https://clstr.news/situations/glyphosate-impact-on-honeybees-and-animal-health
> Updated: 2026-08-23T14:34:01.000Z. Sources: 2. Developments: 2.

Recent scientific studies have highlighted the sub-lethal ecological and biological impacts of glyphosate, a widely used herbicide.

A Virginia Tech study published in the Journal of Experimental Biology found that honeybees exposed to glyphosate exhibited a 13% reduction in foraging activity after three days and showed changes in brain chemicals associated with behavior. Researchers noted that while exposure is typically not fatal, it may cause non-lethal impairments similar to the drowsiness induced by certain antihistamines.

In addition to pollinator research, a multigenerational study by the Ramazzini Institute, the University of California, Santa Cruz, and George Mason University reported dose-dependent anxiety-like behavior in rats exposed to glyphosate-based herbicides. This research suggests a possible link to autism spectrum disorder, challenging existing regulatory claims regarding the safety of typical exposure levels.

## Timeline

### 2026-08-23: Glyphosate exposure linked to changes in honeybee behavior and brain chemistry

A study by Virginia Tech researchers reveals that glyphosate exposure can reduce honeybee foraging activity and alter brain chemistry, potentially causing non-lethal behavioral impairments.

2 sources. https://clstr.news/cluster/glyphosate-exposure-linked-to-changes-in-honeybee-behavior-and-brain-chemistry

### 2026-08-07: Glyphosate linked to reduced honeybee foraging and anxiety-like behavior in new studies

New research shows glyphosate reduces honeybee foraging by 13% and alters brain chemicals, while a separate rat study links the herbicide to anxiety-like behavior and potential autism risk.

2 sources. https://clstr.news/cluster/glyphosate-linked-to-reduced-honeybee-foraging-and-anxiety-like-behavior-in-new-studies

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Cite as: Glyphosate impact on honeybees and animal health. CLSTR, https://clstr.news/situations/glyphosate-impact-on-honeybees-and-animal-health
