Herbicides are an essential tool in lawn care for controlling and preventing the growth of unwanted weeds. There are two main types of herbicides used in lawn care: pre-emergent and post-emergent.
Understanding the difference between these two types of herbicides can help you choose the best product for your lawn care needs, below is a brief outline of the differences between the two.
Pre-emergent herbicides such as Spartan are applied before weed seeds germinate and emerge from the soil. These herbicides work by creating a barrier that prevents the weed seeds from developing properly, effectively stopping them from growing into mature plants. Pre-emergent herbicides are particularly useful for controlling annual weeds that reproduce by seed, such as crabgrass, crows foot and winter grass. These herbicides are typically applied and watered into the soil profile.
Post-emergent herbicides such as Bow and Arrow or Buffalo are applied after weeds have already emerged from the soil and are actively growing. These herbicides are absorbed by the weed, killing it from the leaves down to the roots. Post-emergent herbicides are useful for controlling perennial weeds such as bindii, oxalis, cudweed and clover. They can be applied as required and are more effective on actively growing weeds. They are typically applied and allowed to dry on the leaf (not watered in).
If you need any more information or advice on how to best manage weeds in your lawn don't hesitate to get in touch!
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