Algae

Algae lives in wet areas such as lakes, ponds, and coastal regions. It does not cause disease, but it does stunt the growth of surrounding plants. It forms a slick green or black layer on soil surfaces as well as over low grasses and lawn areas. Once algae covers your plants, air and light cannot penetrate the coating as well therefore causing the damage mentioned above.

Some causes of algae abundance are compacted soil, too much nitrogen, too much shade in moist areas, and lack of air circulation.

Control methods include:

Soil aeration and dethatching. Proper fertilization. Low nitrogen is best. Proper soil drainage. Add some sand if you have to loosen it up some. Proper light sources. (If under trees, thin out some branches if you possibly can to allow more light under the tree.) Proper irrigation. Too much is a bad thing.

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