Pre-ems on chopped straw

[alomy75]

After a heavy straw yield year like this one, I’m finding over 70% soil cover after the drill (dd) in places. If there’s so little soil visible do you still put a pre-em on and hope it gets washed off the straw onto the soil? Or wait and go peri-em with the view of hitting the grass weeds themselves and leaving a residual layer on what little soil is visible?

 

[Steevo]

I’d go before emergence but hope for rain to wash it in. Then come back later on with another dose to top it up and hit any leaves that emerge.

 

[Flatlander]

Advadex was designed for this scenario I believe. Many acres of zero till treated with advadex granules here.dry straw would help the granules pass thru I’d imagine.

 

[Badshot]

As above, I'm using avadex. Then following up with pre/peri/post (whichever is most appropriate) emergence.
If there's a really thick cover of straw I don't think much will emerge through it anyway, so the residual is really for those areas with less cover.
IMHO