I have made an application at rate of 3.5 oz per gallon with a gallon sprayer about 7 days ago ,some are showing the effect of wilting but some are still as green as before spray.
It may be too early to tell how this is working but it has stoped the growth and seens to be working. The roots are white with no green and some are at the point they can be dug up. It has only been 3 weeks and bambo is very hard to get rid of.