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Fusarium

Fusarium

Fusarium is a common lawn fungal disease predominantly found during cool wet conditions typically autumn and winter.

OVERVIEW

Fusarium patch, also called snow mould, is a common cause of brown patches on lawns, particularly in autumn or during mild spells in winter. It is often seen on fine fescue lawns, but can develop on all lawn types.


Because it strikes at times the lawn is not actively growing we think its one of the most visually damaging diseases because recovery can be slow leaving scaring visible for long periods of the winter period.

Fusarium Patch - Pink (Microdochium Patch) --

fusarium patch (snow mould0

What turf does it affect?
It can be observed all year round on all types of turf.

What causes Fusarium Patch Disease to develop?
The disease will not kill rhizomatous turf.

Fusarium Patch Disease is caused by mild autumnal or winter weather.

Conditions that assist its development are:

  • Lower light levels due to cloud cover
  • Reduced daylight hours
  • Morning mists that are slow to clear
  • Lack of air movement
  • Overnight temperatures remaining above seasonal averages

Fusarium fungus (Microdochium (Fusarium) Nivale) is a naturally occurring turf fungus well known by turf professionals. The fungal spores exist within the body of virtually all turf at all times. When climatic conditions are suitable the spores can become very active and result in the development of visible brown patches and mould.

Control Treatments

Fusarium is a disease that has been caused by nature and the best remedy is also provided by nature. A change in weather conditions to colder temperatures, higher light levels and greater air movement usually corrects the problem. It is necessary for these conditions to then prevail to prevent the condition from returning.

How can I control fusarium?

Non-chemical control
Ensure that the lawn dries rapidly after morning dew or rainfall by improving the aeration and drainage will all help:

  • Improve general airflow over the lawn by pruning back overhanging trees or shrubs;
  • Remove heavy dews in the morning with a switch (a long, pliable rod) or bamboo cane;
  • Scarifying, spiking and hollow- or solid tinning will all help with ongoing control;
  • Increasing the soils natural biology will help build up ongoing resistance - see soil beneficial.

Soil Beneficial treatments will help with building up the plants natural ability to withstand and recover from infections plus dont forget to review the abiotic reasons above.

Chemical control
It is often sensible to use a fungicide to deal with the problem, which will kill the fungi and protect against re infection for a short period thereafter.

  • Please remember that, similar to taking antibiotics, after you have applied a fungicide, it is it doesn’t guarantee you never get the symptoms again
  • The pathogens remain in the soil, your lawn may require an annual fungicide application programme.
  • Similar to taking antibiotics, after you have applied a fungicide, it is it doesn’t guarantee you never get the symptoms again.

If you want to treat yourself, we would suggest using a product called Bayer Lawn Disease control is applied, if necessary. (Lawn Disease Control)

What treatments can be used?
Dependent on the time of year an application of fertiliser would promote lawn growth, affected grasses would then be removed by cutting. The feed will also strengthen the plant, enabling it to “outgrow” the disease. We also recommend Biology Booster and Soil Improver to improve soil conditions and the grass plants natural health.

Can anything be done now?

Weather permitting the promoting of new growth with fertiliser will help, you then cut out the active fungal growth, We would suggest to check to see if you’re looking at the primary effect white speckles or the secondary effect of the brown grasses, affected grasses will not revert to green, until new grass growth occurs.

Best Practice?

When looking at treating disease, you should always consider before applying chemicals what cultural and biological improvements can be used first.

The process of completing two actions dramatically increases your chance of success.



If Primary effect:

If it is red spikes of fungal activity, this is already the later development stages, an application of a liquid feed would be beneficial, combined with a frequent cut to remove the affected grasses, but you may choose to treat with a contact fungicide for additional protection. If you would like us to treat your lawn, we can provide a quotation for this.

For best results the fungicide should be applied soon after cutting. Our fungicide will give up to 4 weeks protection. For preventative measures, this application should be repeated at least every month.

Please remember that, similar to taking antibiotics, after you have applied a fungicide, it is it doesn’t guarantee you never get the symptoms again.

If you want to treat yourself, we would suggest using a product called Bayer Lawn Disease control is applied, if necessary. (All good garden centres should stock it? Lawn Disease Control

Use as directed and always read and follow the manufactures instructions before use.

If Secondary effect

When conditions are suitable rake out brown patches and overseed the area with a good quality grass seed. We recommend Green Velvet All Rounder, these are more resistant to fungal diseases like Red Thread and Fusarium.

What could I expect the lawn to look like after a fungicide treatment?

 

Choosing your Grass Seed

Our proven Grass Seed Selection consists of the following Green Velvet blends;
The All Rounder - Multi-Purpose (more resistant to Red Thread)
The Perfectionist - Luxury (susceptible to Red Thread)

Coverage available 15m2, 50m2, 500m2 & 800m2

All of the above grass seed is available from our shop:

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  • 32 Mowbray Gardens,
    West Bridgford,
    Nottingham.
    NG2 6JN

Where we work...

We operate both North and South of the River Trent, many of our customers are located in: West Bridgford, Radcliffe on Trent, Bingham, Cotgrave, Tollerton, Keyworth, Ruddington and North of the River: Beeston, Chilwell, Wollaton, Bramcote, Nottingham, Mapperley and Arnold.

Call: 0115 837 8439 or email for a FREE quotation.

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