Yes, KUDZUS is a Scrabble word!

Letter values in Scrabble US: K 5, U 1, D 2, Z 10, U 1, S 1.

Is it a valid word?

KUDZUS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

fast-growing vine from eastern Asia having tuberous starchy roots and hairy trifoliate leaves and racemes of purple flowers followed by long hairy pods containing many seeds; grown for fodder and forage and root starch; widespread in the southern United States

Also: kudzu vine, pueraria lobata.