La. R.S. 33:5063

If, after the cutting, destruction or removal of such weeds, grass, or growths, by the municipality after due notice as above provided, the cost or expense thereof has not been paid within ten days, the tax collector of the municipality shall furnish the owner, as shown on the last assessment roll of the municipality, by registered mail a written statement showing the cost or expense incurred for the work, and the place or property on which the work was done. If the said statement is not paid within one month thereafter, the amount thereof shall be included in and form part of the taxes due by the owner of said property, and when collected shall be credited to the general fund of said municipality.