Slashdot Mirror
Three-Quarters of All Honey On Earth Has Pesticides In It (theverge.com)
An anonymous reader quotes a report from The Verge: About three quarters of all honey worldwide is contaminated with pesticides known to harm bees, according to a new study. Though the pesticide levels were below the limit deemed safe for human consumption, there was still enough insecticide in there to harm pollinators. The finding suggests that, as one of the study authors said, "there's almost no safe place for a bee to exist." Scientists analyzed 198 honey samples from all continents, except Antarctica, for five types of pesticides called neonicotinoids, which are known to harm bees. They found at least one of the five compounds in most samples, with the highest contamination in North America, Asia, and Europe. The results are published today in the journal Science.
To get a better sense of just how widespread neonic contamination is, Mitchell and his colleagues analyzed 198 worldwide honey samples collected as a citizen science project between 2012 and 2016. They found that 75 percent of honey contained at least one of the five tested neonics, and 45 percent of samples had two or more. Honey from North America, Asia, and Europe was most contaminated, while the lowest contamination was in South America. Neonic concentrations were relatively low: on average, 1.8 nanograms per gram in contaminated honey -- below the limits set as safe for people by the EU.
To get a better sense of just how widespread neonic contamination is, Mitchell and his colleagues analyzed 198 worldwide honey samples collected as a citizen science project between 2012 and 2016. They found that 75 percent of honey contained at least one of the five tested neonics, and 45 percent of samples had two or more. Honey from North America, Asia, and Europe was most contaminated, while the lowest contamination was in South America. Neonic concentrations were relatively low: on average, 1.8 nanograms per gram in contaminated honey -- below the limits set as safe for people by the EU.
Hi, I'm not often posting but I have an anecdote. About three years ago I bought a house. First two years, no honeybees. This year we had them. Wowsa, great!! When I was young (40 yrs ago) honeybees were all around but haven't seen them for 20+ years.
Can I say what is different? Not sure. We are completely organic, but use horticultural oil for hemlock woolly adelgids & hemlock scale, not currently using but did/might future use spinosad for winter moth and gypsy moth. The exotic (asian, european) insects are very aggressive on native (north american) trees. Often defoliation is complete, no leaves left uneaten. It is hard to judge whether mild pesticides (horticultural oil, spinosad) to save the trees are better or worse than refraint for their (small, but non-zero) effect on honeybees.
Neonicotinoids seem to be a problem and restricting those has a high level of support. Let's start with removing those, and see where we go.