stem rust

9 LETTERS · STARTS WITH S

stem rust is a valid 9-letter word worth 10 points in Scrabble and 12 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
S1T1E1M3R1U1S1T1
1 + 1 + 1 + 3 + 0 + 1 + 1 + 1 + 1 =10 PTS
DOUBLE WORD → 20TRIPLE WORD → 30
MEANING

What does stem rust mean?

1