Moss in Lawn

Spotted a strand of moss in the lawn two days ago, so treated whole lawn immediately with 20% ferrous sulphate at 1 ounce per gallon of water per 10 square yards (35grams per 5 litres per 8.5(approx) square metres) . First moss this autumn. Moss usually establishing strongly in mid August and, if left untreated, would be rampant by this time.

I feel liming (reduction of acidity) has improved things. Very tempting to give more lime to see if moss removed entirely. But because of disease risk, best take it gradually by adding no more than 35 grams per square metre (1 oz limestone per square yard) at one time.

As you can see, the damage is not too bad. Can tolerate this over winter. Because grass not cut short, it tends to hide any black stuff (dead moss). I haven't cut it since before it was aerated. As stated elsewhere, 'sulphate of iron' is ferrous sulphate (19%). Application by watering-can at the above rate should do the job.

Definitely worth looking very carefully for any signs of moss (there was so little in mine, I could hardly find the spot after leaving and returning) and killing it before it gets established and reproducing. This treatment should hold it at bay for a month or two. Should be well ahead by spring. Unless . . ..