This scientific study investigates stinging nettle as a sustainable, eco-friendly alternative to chemical treatments for managing Varroa mites in honeybee colonies. Researchers compared ethanolic extracts and dried plant smoke against formic acid, measuring their impact on mite mortality and bee health. The findings reveal that while formic acid is highly effective, it causes significant oxidative stress and higher bee mortality. In contrast, nettle treatments successfully reduced mite infestations without harming the bees or increasing stress biomarkers. Chemical analysis identified several bioactive compounds in the nettle, such as isopropyl palmitate and trans-totarol, which provide acaricidal and antioxidant benefits. Ultimately, the source suggests that stinging nettle is a viable, non-toxic tool for promoting colony sustainability and bee resilience.
Source: https://pmc.ncbi.nlm.nih.gov/articles/PMC12049044/