20 January 2015 - Neonicotinoids induce spider outbreaks in parks

The use of pesticides destabilises exosystem natural balance. This 2010 publication is one more example that killing so-called "pests" has a non-negligible influence on natural predators of other "pests". In this article, the authors explain that by using the neonicotinoid imidacloprid on Elms in Central Park, the gardeners have killed beneficial insects able to maintain level of a special spider (Tetranychus Schoenei) at a low level. Furthermore, it appears that neonicotinoids might increase the nutritional value of Elm leaves for the spider.

This is another example that the use of chemical is not a sustainable way of managing "pests". More and more non-chemical solutions exist and laboratories working on alternatives must be financially supported by our governments! 

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