Pests and Diseases that Affect Lawn Grass

Lawns


Ants

Pests and Diseases that affect Lawn Grass - ants Typical symptoms: Mounds of dry fine soil appear on the lawn; ants may be seen.

Prevention and treatment: See General Garden Pests


Earthworms

Typical symptoms: Small casts of soil appear, extruded from the soil.

Prevention and treatment: Disperse wormcasts when dry, using a broom made with birch twigs.


Fairy rings

Typical symptoms: Circular rings of mushrooms or toadstools, often with a ring of lush grass.

Prevention and treatment: These are difficult to eliminate. Keep the whole lawn growing well so the rings are less noticeable. Try replacing soil and turf to about 30cm (1ft) depth over a distance 30cm (1 ft) either side of each ring. See Identify Turfgrass Diseases – Fairy Rings


Leatherjackets (Tipula)

Typical symptoms: These creatures, the larvae of the crane fly (daddy-longlegs) feed on grass roots. As a result, patches of yellow or brown grass appear in dry weather. Birds often search out leatherjackets from the lawn to eat.

Prevention and treatment: See General Garden Pests


Moles

Typical symptoms: Mounds of loose fresh soil appear suddenly on the lawn.

Prevention and treatment: See General Garden Pests


Red thread (Corticum fuciforme)

Typical symptoms: Reddish patches of dying grass most commonly seen in late summer, particularly in lawns on poor soils. .

Prevention and treatment: Improve the fertility of the lawn.


Snow mould/Fusarium patch (Micronectriella nivalis)

Typical symptoms: Patches of yellowing or brown grass, most commonly seen over the winter, particularly after snow has melted.

Prevention and treatment: Improve drainage and aeration. Never apply nitrogen-rich material to the lawn in autumn.


02. February 2011 by Dave Pinkney
Categories: Lawncare, Pests and Diseases | Tags: , | Comments Off on Pests and Diseases that Affect Lawn Grass

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