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Mo Bacter 20kg Bag

MO Bacter 20kg Bags 5-5-20 (+3%MgO)

MO Bacter - Endorsed by the Royal Horticultural Society

*Packaging may vary.

MO Bacter is an organic fertiliser from Viano of Belgium which releases its nutrients evenly over a twelve week period. It feeds the lawn whilst working against moss. The high levels of potassium are ingested by the moss which causes the moss plant to breakdown and be digested by bacteria inoculated in the fertiliser.

Lawns are left free of any debris with no need to scarify. MO Bacter is an organic-mineral fertiliser, harmless to animals and wildlife, and doesn't damage border plants.

MO Bacter is best used in the spring, or early summer, to eliminate moss and late summer or early autumn to stifle its winter development.

MO Bacter is endorsed by the Royal Horticultural Society.

Viano MO Bacter is at its most effective when the SOIL temperature is 10°C or more.

Active Ingredients: Nitrogen, phosphate and potash 5-5-20 (+3%MgO) plus a bacteria (bacillus spp.) which is found naturally in soil; but when added to fertiliser, consumes dead material like thatch and moss.

Key Features of Mo Bacter

  • Unique slow release fertilisers which feed your lawn for over three months

  • Destroys moss by secondary action without leaving debris.

  • Removes the need for raking out dead material after use

  • Being organic it is not harmful to animals or children.
Longevity Bag Size kg Application Rate g/m2 Bag Coverage m2
12 weeks 20 100 - 114 175 - 200


MO Bacter Fertiliser Analysis

Ingredient Oxide Value Elemental Value
Total Nitrogen (N)   5.00%
Organic bound N derived from feather meal, meat and bone meal, cocoa shells 3.50%
Ammonium Nitrogen 1.50%
Phosphorus Pentoxide (P2O5) 5.00%
Potassium Oxide (K2O) 20.00%
Magnesium Oxide (MgO) 3.00%
Organic Matter 25%


Application Information

Application rates and when to apply MO Bacter fertiliser.
Period Lawn Construction g/m2 Lawn Maintenance g/m2 Lawn Condition Soil Temp. Range
SPRING - 100 - 150
(in combination with scarification)
With Moss 5 - 10℃
SPRING - 50 - 100 Without Moss 5 - 10℃
AUTUMN - 50 - 100
(from the end of August)
K - Fertiliser 5 - 10℃
- Fertilising is possible immediately after mowing the grass. In dry periods (1 week without rain) watering is recommended.
- After treatment, wait 2 - 3 days before mowing the grass.

Spreader Settings
Spreader Application Rate Setting Passes Spread Width (m)
(cone 8)
50 g/m2 0 ½ 2 3.4
100 g/m2 Y 3
150 g/m2 Z 4
Flex Select 50 g/m2 23.5 2 3.2
100 g/m2 27 3
150 g/m2 30 4

For further information regarding MO Bacter or to discuss a bulk order, please contact our technical sales team on 01902 440250.

Delivery charge (if applicable) applied at checkout. Next working day delivery is available on this product, as an option on orders placed before 12 noon - excludes festive season & bank holidays. Please note deliveries to Highlands, Cornwall and more remote areas may take longer. Surcharges apply for non mainland locations, call for more information. More delivery info

Please Note: If you have any access restrictions for lorries or large vehicles please speak to our sales team on 01952 641949.

Collection from our Telford, Shropshire, Trade Counter is available for this product. More info on collections

Images - Click image to zoom in
Viano Mo Bacter 51Xvcj9c3oL. SL500 AA300 Mo Bacter