As we are starting to approach Autumn and Winter we should now start to think about spraying to prevent Weeds such as winter grass from emerging.
Pre-Emergent weed spraying prevents seeds from Wintergrass and alike from germinating. Most pre-emergent chemicals sit active in the soil for between 12-18 weeks. Meaning if you want to do complete coverage it may require multiple applications. We normally plan spraying in late March to Early April and then again around and again Late June to Mid July.