June Hughes wrote:
Not at all.

Off course not! I use lots of garlic and it's amazing how many people
keep turning up at diner time ;o)

I hope someone answers my question.

It's the smell. I thought for sometimes that the sap raising through a
rose (or other plants) close to garlic would also pick up on the
garlic. But it's only the smell. It deters aphids and ants. I always
sow my carrots near garlic or leeks too as this deters carrot flies.