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Hello!! Recently I've started to notice large patches of yellow grass forming on my lawn. When I look closely at the dead yellow grass I can see spots of grey. The areas where the yellow grass have died has now left bald spots on the lawn. Can you please advise on how to best save my lawn ?
Welcome to the Bunnings Workshop community @Garden_novice. It's brilliant to have you join us, and many thanks for your question about lawn care.
A good first step is to check for lawn grubs and beetles. You can do a simple test by mixing a squirt of dishwashing detergent into a litre of water and pouring it over the edge between the dead and live grass. If grubs or beetles are present in the soil, they should surface within about 30 minutes.
From what you’ve shown, yellow patches with grey spots and exposed roots often point to grubs eating the grass roots. If your test confirms grubs, you can treat the lawn with a suitable lawn grub killer. If no grubs appear, then the cause might be something else, such as physical damage or localised soil issues, but grubs are the most common culprit for sudden, patchy die-off like this.
Please let me know if you have any questions.
Mitchell
