2-4-dB timing on new clover

[reds]

I don't post much but read everyday, and really appreciate all the sharing of knowledge here. My clover(arrowleaf and crimson) has come up, 1/4"-1/2" tall now. The wild mustard is exploding, and usually nearly smothers the grain and clover every year by November. How tall does the clover need to be to overspray the clover and mustard with 2-4-dB to kill the mustard and not the clover? Thanks

 

[doomtrpr_z71]

It most likely will burn and or discolor the clover until it gets after the first trifoliate leaf

 

[reds]

It most likely will burn and or discolor the clover until it gets after the first trifoliate leaf

Thank you much.