Sentence in "Ergot Theory"

I'm not really satisfied with this sentence "A new study has shown that a primitive form of LSD was infecting the wheat supply on one side of the village. "  First off, what study? There is no reference cited so this could be some wackos study or it could be something reputable. Also, the sources I've cited in the rest of this section were all discussing RYE not wheat. This is the lone sentence about wheat and I have no idea whether ergot (which I assume is what is meant by "a primitive form of LSD") on wheat does the same as ergot on rye.  I propose the sentence be edited out unless it can be expanded by citing some verifiable study.