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How to control weeds in your lawn


How to control weeds in your lawn

It's really important to kill weeds now before they set seed otherwise they can increase in number next year so getting on top of your weeds now is really important.

Herbicides (weed killers) work more effectively when the plant is growing vigorously. If you have not fed the lawn in the past 6 – 8 weeks, it is advisable to fertilise it prior to applying your weed killer. Fertilisers strengthen lawns, opens the pores on the leaf to allow for better absorption from contact sprays. You should wait 2 - 3 weeks after fertilising then apply the appropriate weed killer at the recommended dosages. 

Tips for controlling broadleaf weeds

Make sure that you thoroughly spray all surfaces of the weed.  Don’t spray in windy conditions.  Early morning or late afternoon spraying minimizes the hazard to bees.  Don’t spray in wet conditions as the rain may lessen the effectiveness of the weed killer. 

Always follow the manufacturers directions, store chemicals safely, ensure adequate ventilation when mixing and note the appropriate first aid measures. Don’t mow weeds for 48 hours prior to applying and don’t water for 8 hours before or after applying.

Do not apply any broadleaf weed control until the lawn is at least 3 months old. Use Munns Professional Buffalo Booster Weed N Feed or Munns Quick Fix.

Toadstools and fairy rings

Poor drainage, decomposing material under the soil and over – thatched lawns are generally the cause of toadstools and fairy rings.  If the problem is caused by rotting matter beneath the soil, the problem will eventually disappear once this has decomposed.  However, if you want to correct the problem immediately, you will need to remove the debris and affected soil and renovate the area. 


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