[QUOTE=joseph;355499]The advantage of leaving scapes on is that it is less labor, and the difference in size is imperceptible to me.
The disadvantage of leaving scapes on the plant is that they form bulbils, and bulbils can become weedy next growing season.
I leave scapes on because I am interested in growing pollinated garlic seeds, and that requires flower stalks.
Maybe thou should read this.
http://www.gourmetgarlicgardens.com/overview.htm