I understand the benefits of mycorrhizae (types) and their association with different "wanted" plants. I have heard that if your lawn is mycorrhizal then you will not have weeds or minimized weeds. My question is do weeds use mycorrhizae too? What about crab grass? Nut grass? Also how do herbicides affect mycorrhizae. I have many customers who have gone organic, yet do not have the patience to weather out summer crab grass and nut grass. Will herbicides kill the myco, I have been establishing - obviously I will keep on inoculating the turf (with myco - especially after killing weeds), but does anyone have any concrete information to what extent does the myco is damaged by weed controls and do weeds (violets, creeping charlie, clover, crab grass) benefit from myco?