* Profit seen meeting low end of outlook for FY 2009
* Competition on Roundup stronger than expected
* Free cash flow seen at $1.4 billion
* Shares fall 4.1 percent
KANSAS CITY, May 27 (Reuters) - Monsanto Co said on Wednesday that stronger-than-expected competition in the herbicide business would push fiscal-year results to the low end of its earnings forecast, and investors responded by pushing its shares down more than 4 percent.
For the year ending on Aug. 31, Monsanto, the world's largest seed company, now expects ongoing earnings of about $4.40 per share, the lowest point in its previously announced range of $4.40 to $4.50.
Monsanto said it expected third-quarter earnings of $1.15 per share. Analysts were looking for $1.58, according to Reuters Estimates.
The company also said it expected to generate about $1.4 billion in free cash for the full year.
Shares of St. Louis based Monsanto fell 4.1 percent to $81.78 in premarket trading. (Reporting by Carey Gillam; Editing by Lisa Von Ahn)