Complex Insight - Understanding our world
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Complex Insight  - Understanding our world
News and notes on complex systems in life sciences, engineering, education and government
Curated by ComplexInsight
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Rescooped by ComplexInsight from Ag Biotech News
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A new threat to bees? Entomopathogenic nematodes used in biological pest control cause rapid mortality in Bombus terrestris - Dutka &al (2015) - PeerJ

A new threat to bees? Entomopathogenic nematodes used in biological pest control cause rapid mortality in Bombus terrestris - Dutka &al (2015) - PeerJ | Complex Insight  - Understanding our world | Scoop.it

There is currently a great deal of concern about population declines in pollinating insects. Many potential threats have been identified which may adversely affect the behaviour and health of both honey bees and bumble bees: these include pesticide exposure, and parasites and pathogens.

 

Whether biological pest control agents adversely affect bees has been much less well studied: it is generally assumed that biological agents are safer for wildlife than chemical pesticides. The aim of this study was to test whether... nematodes sold as biological pest control products could potentially have adverse effects on the bumble bee... One product was a broad spectrum pest control agent... the other product was specifically for weevil control...

 

Both nematode products caused ≥80% mortality within the 96 h test period when bees were exposed to soil containing... nematodes at the recommended field concentration... Of particular concern is the fact that nematodes from the broad spectrum product could proliferate in the carcasses of dead bees, and therefore potentially infect a whole bee colony or spread to the wider environment.

 

https://dx.doi.org/10.7717/peerj.1413

 


Via Alexander J. Stein
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Alexander J. Stein's curator insight, November 21, 2015 9:44 AM

Also see these two articles in The Times: 

 

Organic pesticide increases risk to bees, 20 November:  www.thetimes.co.uk/tto/science/article4618597.ece

 

Organic farms used pesticide lethal to bees, 17 June:  www.thetimes.co.uk/tto/environment/article4472324.ece

 

Suggested by Jed Fisher
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Bees Can't Find Flowers Thanks to Diesel Exhaust

Bees Can't Find Flowers Thanks to Diesel Exhaust | Complex Insight  - Understanding our world | Scoop.it
Diesel exhaust is pretty nasty stuff. Pass an overloaded 18-wheeler clouding up the highway, and that acrid plume of hydrocarbons will overpower even your best little tree air freshener.
ComplexInsight's insight:

New findings show that diesel exhaust impedes bees. Article on Gizmodo.

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