Answer:
Step-by-step explanation:
What he is trying to do is see if the repellant does any good. So the roses that do not get the repellent are the control group.
If they become 1/2 chewed up, and the others do not, the repellent works.
We had deer that visited our property and their favorite flower was the tulip. They are very sloppy eaters -- no table manners at all. So it was evident that they had been there, I don't think they liked coffee and that's how the problem was solved.
They did not attack our vegetables (carrots which have a high natural sugar content), nor anything in the garden
Just the tulips around the house.