not that I know of (culling males is tried and true though!), but if there was such a chemical I sure as hell wouldn't be consuming any of your weed lol
I got a purple chemdawg from the dispensary that had seeds in it. It was such a good bud that I figured it would grow good bud. Well, it had pollen sacks in nearly every bud, and I didn't find them in time. It pollenated the entire garden.
The problem with bagseed is there usually produced from a hermaphrodited plant and another female. And thus will usually be female but have a high chance of hermaphroditing i had the same problem once i ended up having to take the strain out of my garden