We put in some hugelkultur beds this year and added straw bales on top and all around them. We made sure to get weed free, but didn’t realize they still had seeds and sprouted like crazy. We have removed as much as we can but while researching we realized the Standlee straw bales we used do use a herbicide called Sencor and sometimes a pesticide Lorsban or Mustang Max. We are trying to grow our vegetables organically and cannot believe the mistake we made from lack of research. I am wondering if there’s anything we can do besides removing the straw we are able to out of there? Thanks in advance for any advice.