Grazon and gardens
My garden was sprayed with grazon about a year ago. Nothing came up this spring except zucchini. Is it safe to eat the zucchini?
Certified GKH Gardening Expert
My guess would be yes, its safe to eat the zucchini, but I'm really not familiar with this systemic herbicide or the residual toxicity issues.
Here is a link to the Canada office of Dow AgroSciences. You can ask your question directly to the product manufacturers rep. If you are in the US or elsewhere you may find a similar contact page. The other option is to ask your state or province pesticide regulation department or county agricultural commissioner.