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Excellent article documenting losses in insect abundance observed by many others.

Posted by clementkent on 20 Oct 2017 at 18:43 GMT

I write from Canada, where roadside collecting and greatly reduced numbers of insects on our automobile windshield have suggested a problem over much of the agricultural region of southwestern Ontario. However, tracking windshield washer fluid changes over time is not a good way to quantitate changes, so I was very interested by the authors' careful, reproducible methods.

This study cries out for replication in other areas. Are there other groups as careful and persistent as the Entomological Society of Krefeld who have data that can be so used?

No competing interests declared.