Is There Global Evidence That Neonicotinoids Harm Bees? 

Is there global evidence that neonicotinoids harm bees?  Certainly, concerns about the impact of neonicotinoids on bees and other wildlife, have been raised all over the world, by beekeepers, independent scientists, members of the public and conservationists such as in Japan, Australia, Europe, USA and Australia. 

Of course, the fact that governments have not issued outright bans tells us little – it certainly provides no reassurance that these insecticides are safe for bees or other wildlife. (UPDATE: Some moves to ban neonics have happened in Europe since this page was written).

In any event, in some cases, those responsible for banning them (or influencing whether or not they should be banned) would be those who were at least partially responsible for having registered them in the first place, or having supported the agrochemical industry in doing so – example: the influential Dr Helen Thompson, UK ‘chief government bee scientist’ and eco-toxicologist who worked alongside the pesticides industry many times, and will be joining Syngenta in (September 2013).

Whilst our regulators and industry deny the dangers of neonicotinoids to bees, in the face of flawed regulatory procedure and agrochemical industry influence, can the independent experiences and research of scientists, beekeepers, conservationists and intelligent public, be wrong about neonicotinoids?

Here are just a few examples of concerns raised, snippets of information, reports and sound bites from around the globe.  The Google/Bing search engines are available for those who wish to look for further resources, and perhaps those who have the time to seek out relevant translation terms for stories printed in languages other than English.

Evidence From Overseas On The Impact Of Neonicotinoid Insecticides On Bees


In the UK especially, the Australian situation has often been cited as that neonicotinoids are used widely with no reported impact on bees. 

This is false, and has been discussed previously on this website here. More recently the Australian regulatory authorities raised their concerns about neonicotinoids


Study: Taniguchi et al, Jan 2012 publ Journal Of Apiculture:  “Honeybee Colony Losses during 2008-2010 Caused by Pesticide Application in Japan”

Neonicotinoids were identified as responsible for 91.4% of the 11,533 damaged honey bee hives in 2009, and 81.7% of the 8,328 losses in 2010.

Also, a presentation regarding concerns in Japan about neonicotinoids with regard to environmental and health impacts.


Xerces – Are Neonicotinoids Killing Bees? (Update: this report has now been removed - please contact Xerces directly if you wish to obtain a copy of the report).

50,000 bumblebees dead after neonicotinoid pesticide use in Oregon  

Tom Theobald – a beekeeper campaigning against neonicotinoids, having direct experience of the impact of neonicotinoids on his honey bees - on Dan Rather and his response to the EPA scandal of allowing pesticides on the market with incomplete testing.

Groups sue EPA over honey bee deaths (copy and paste the link):

Also: Report on effects of neonicotinoids on grassland birds. 


EFSA find that regulatory tests for assessing the impact of pesticides on bees, are inadequate – and especially for assessing systemic pesticides such as neonicotinoids. 

EFSA find that neonicotinoids imidacloprid, thiamethoxam and clothianidin pose unacceptable risk to bees, and propose restrictions to their use.

See these links (copy and paste into browser)


EFSA find Fipronil poses unacceptable risk to bees, and proposes restrictions.

EFSA examine UK bumblebees study conducted by FERA (Helen Thompson et al) and find there is no reason for them to amend their position on neonicotinoids, due to weaknesses in the study design.

Note, the UK government 'bee scientist' went to work for Syngenta in 2013:
26/government-bee-scientist-pesticide-firm ).


Presentation: Hedwig Riebe, DBIB: Exposition Paths of Neonicotinoids 2009 (This is a powerpoint presentation. Hedwig Riebe is from the Deutscher Berufs und Erwerbs Imker Bund e. V. in 2009 (German Beekeepers Association). – A small experiment to monitor what would happen to bees in clothianidin treated crops, whether they would drink guttation and other contaminated drinking routes for bees.

Link between neonicotinoids and Varroa in honey bees.

Photo below: German beekeepers protest and award Angela Merkel with a black brush for always taking the side of industry.  One of her "special advisors" is Hr. Hambrecht, the head of BASF. The brush is so she can pollinate food crops herself.  The brush has been awarded by German beekeepers for the last 7-8 years to the person they judge to have most harmed the beekeeping community.

German beekeepers protesting about bee poisonings.German beekeepers protesting about bee poisonings.

Other links: 

How do neonicotinoids work?  A look at the claims made by BayerCropscience for effects of their neonicotinoid on termites, and a comparison with reported effects on bees.

Neonicotinoids and non-target insects - a look at the evidence from industry patents.

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