Fight algae in the lawn - this helps with algae infestation

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A rainy summer produces frequent wetness, which can not only be dangerous to plant roots. Because this environment provides moisture-loving algae an ideal breeding ground. A heavy, compacted soil also promotes the infestation, within a short time covers a gelatinous, green-brown surface grass and soil. As in waters, algae are difficult to remove in the lawn. With the manual removal of the slimy material, it is not done. Take precautions to quickly decimate and permanently eliminate the algae infestation.
Pests of a different kind
The two words "algae" and "garden" can not be directly related by many people. But the plant, which often turns waters into a plague, is not just limited to ponds and lakes. Under unfavorable conditions, algae can also be found on your own lawn. The gelatinous, green-black mass infects the individual grass plants in the rarest cases, but damage can occur in a massive infestation. The mucilaginous material is either blue-green algae (cyanobacteria), pebbles or green algae (Chlorophyta). Rarely that all three species occur in the garden at once. Especially cyanobacteria are suspected to secrete toxic substances for animals and plants and should therefore be eliminated quickly. However, algae generally compete with the grass plants for light, nutrients and oxygen. The infested grass areas are bare and can not regenerate by themselves without the gardener's help.
Effectively remove algae growth
Algae infestation on your own lawn is more than annoying. Because the greasy material "conserves" the soil and prevents the circulation of air that is important for plants. Even sunlight and important nutrients can not penetrate to the roots of turf plants. The inevitable result: The lawn dies from the affected areas, unsightly bald spots arise. Also, accidents are often pre-programmed due to the slippery surface. With the mechanical removal of the greasy coating alone, it is not enough. And even a longer fair weather phase does not make the algae disappear. However, you can use the dry days to take effective countermeasures. The first step is to remove the dry algae crust from the lawn over a large area. This work can be done easily with a rake or a spade, which is pulled flat over the green area. Do not dispose of the crusted algae on the compost, as this will not damaging the infestation and propagation. Play it safe and transfer the algae residue, wrapped in a plastic bag, to the residual waste.
Tip: On paved surfaces, you can remove the algae film with a high-pressure cleaner. Immediately remove the crusts so dissolved to prevent them from spreading.
Algae have the ability to multiply rapidly, even under microscopic conditions, under favorable conditions. For this reason, you should treat the affected soil sufficiently. After removing the algae crust sufficiently, the soil needs oxygen. With a scarifier you can shred dead plants and loosen the soil at the same time. However, it is more effective if you loosen or even prune the affected areas over a large area with a spade. The healthy roots get enough air and can regenerate faster. In this phase, however, the lawn is very vulnerable, not only algae, but moss and other weeds can still harm it. Only the next step helps to create the optimal basis for the regeneration of the lawn. Fill uneven areas in the ground with sand for straightening. Then apply lawn seeds and water the entire area. For a few weeks you should avoid stepping on the lawn so that it can develop and strengthen optimally. The newly germinated plants improve the soil structure and give the severely damaged area a new appearance. If, despite all the effort and time, algae form again, remove them immediately and loosen up the soil sufficiently again.
Preventive methods
The removal of the algae is tedious and takes a lot of time and care. In any case it is better if you take preventive measures. Green and blue algae are formed where a compacted soil prevents moisture from seeping in. Especially a rainy summer or a humid autumn contributes to a massive infestation. The following tips will help you prevent algae infestation in the lawn:

  • Scarify soil several times a year.
  • Choose suitable grass type.
  • Mow regularly.
  • Avoid waterlogging when watering.
  • Deliver important nutrients to the soil.
A healthy lawn not only presents itself in a uniform green appearance, but can also successfully compete against a variety of diseases and against algae. You can already lay the foundation for this when planning and sowing the local green space. With small pebbles in the substrate, for example, you counteract compaction of the soil. Shady locations are predestined for an algae attack. To work around this problem, you have two options:
  • Put ground-covering plants.
  • Sowing shade grass.
  • Instead of lawn create a rock garden.
Chemical treatment methods
In the case of pest and weed infestation, it is tempting to resort to chemical products from specialist retailers. Often, symptoms of problems can be tackled quickly, but the cause itself does not disappear. Some remedies against moss are also effective against algae. If despite all efforts you repeatedly form algae on the lawn, you can fall back on the short-term measures. These include, for example, the application of iron or lime nitrogen fertilizer. Permanently you will not get rid of the unwanted lawn growth by these means.
You will be more successful if you combine several measures. These could look like this:
  • Remove algae crust.
  • Scarify the floor.
  • Apply sand.
  • Sow the lawn.
  • Distribute suitable nitrogen fertilizer evenly.
However, you can not avoid editing the soil itself. This is the only way to remove the ideal living conditions for algae.
Algae in the lawn are a nuisance, which can be eliminated only with much effort and effort. Nevertheless, you are by no means powerless against infestation. With the right care and a treatment of the soil of the slippery surface soon belongs to the past. Even inexperienced hobby gardeners can remove the algae reliably and long-term from the lawn without special knowledge within a few weeks.

Video Board: Algae Control.

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