This spring will be the third year battling against this scourge. Came from a four year pile of local farmer composted cow manure. It had appearance of black gold. Nowadays one can not be too careful. Thanks Dow Chemical. Our Community garden effort on a vacant commercial lot that we’ve owned since 2004 began with Covid-19 and has been a real learning experience ever since and this innocent 1contamination. Our food systems are in real jeopardy.