Originally Posted by Daniel Y
From what I have found development of neonicotinoids was in the 1980's by shell and in the 1990's by Bayer. The appearance of CCD as I understand it is supposed to have been in 1996.
Try 2006 Daniel Y.
Mark Berninghausen "To float, upheld, as salt water would hold you, once you dared." Denise Levertov, poet