Widespread contamination of wildflower and bee-collected pollen with complex mixtures of neonicotinoids and fungicides commonly applied to crops

1. David, A.
2. Botías, C.
3. Abdul-Sada, A.
4. Nicholls, E.
5. Rotheray, E.L.
6. Hill, E.M.
7. Goulson, D.