Lichen & algae
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Are Lichen and Algae bad for my lawn?
Algae-like growths, lichens and slime moulds are often found growing in damp or shady places in the garden. They affect the appearance of the lawn, blocking light from reaching the grass and can make the surface slippery. Compacted soil with poor drainage is especially prone to developing these particular problems. Algae-like growths: Dark green or blackish jelly-like growths that often appear in damper, cooler weather are caused by a cyanobacteria called Nostoc. These are sometimes referred to as gelatinous algae or blue-green algae but are technically classified under bacteria, not algae. Lichens: In turf the most common lichen is Peltigera. It is brown or grey and formed of flat structures that grow horizontally in the turf. Slime moulds: Wet weather in Autumn or Spring can also lead to the growth of slime moulds. These growths, which may be white, yellowish or orange, produce small grey fruiting bodies that subsequently release masses of purplish-brown spores. The growths are purely superficial and do not harm the grass but they are unsightly. Remedial Actions for Lichen and Algae
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Algae:
Lichen:
Slime:
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