Or you can go right to The Source.

I have to agree with NTBill that Raptor and Pursuit are good options to look at.  However, I think the redroots will need to be small in order for these products to work effectively.  Somehow, I have a suspicion that is not the case. Take a look at Butyrac. However, you will have to keep in mind the days to harvest interval for any product you use.