Do you use the same strength as you do for treating vegetable plants? I don't want to kill my roses but I am willing to risk taking them to the brink. I think they are also eating my petunia flowers.

I am also having a problem with the Japanese beetles on my apple trees raspberry bushes and linden trees what is the neem treatment this is something I can do myself go buy at the store I've tried everything organic and natural nothing has worked please advise thank you