Answer:

ortho

Answer	Crossword Clue
ORTHO	Dox or dontic lead-in
ORTHO	Lawn-care company
ORTHO	"Straight" opening

ORTHO	Correct (comb. form)
ORTHO	The "right" starter?
ORTHO	Weed-B-Gon maker
ORTHO	Weed-killer brand
ORTHO	Right at the front?
ORTHO	Correct: pref.
ORTHO	Garden-care brand
ORTHO	Straight: prefix

ORTHO	Pest-control brand
ORTHO	Graphic opener
ORTHO	Weed-B-Gon manufacturer
ORTHO	Giant in lawn care
ORTHO	Weed-control brand
ORTHO	Big name in lawn care
ORTHO	Prefix meaning straight
ORTHO	Correctional prefix

ORTHO	Straight: Prefix
ORTHO	Garden care brand
ORTHO	Weed B Gon maker
ORTHO	Prefix with doxy
ORTHO	Scotts Miracle-Gro brand
ORTHO	Straight start?
ORTHO	Big name in garden care
ORTHO	Gardener's brand

ORTHO	Garden products brand
ORTHO	Straight opening?
ORTHO	Grass-B-Gon maker
ORTHO	Correct, in combinations
ORTHO	Garden fertilizer brand
ORTHO	Big name in lawn care products
ORTHO	"Straight" prefix
ORTHO	Lawn-care brand name

ORTHO	Straight start
ORTHO	Prefix meaning "right-angled"
ORTHO	Big name in bug control
ORTHO	Lawn care brand
ORTHO	...-Novum (birth control drug)