Lawn Fungus and Fairy Rings in Australia
Smoke-coloured mycelium, toadstools in a ring, and greasy spots after humidity are not always the same disease. Diagnose before you buy a fungicide.
Maya Chen · 20 April 2026
Plant Health
How to read yellow leaves, mildew, scale, aphids, black spot, root rot and lawn fungus before you reach for a spray.
Root Rot in Pots and Garden Beds
Black, mushy roots and a plant that wilts while wet are not a thirst problem. Learn how to diagnose Phytophthora and overwatering, and when a plant is already gone.
Maya Chen · 11 April 2026
How to Treat Powdery Mildew in Australian Gardens
The white dust on roses, cucurbits and peas is a dry-weather fungus. Cut, air, milk spray, and know when a zucchini is finished.
Maya Chen · 22 March 2026
How to Treat Black Spot on Roses
Diplocarpon rosae loves wet Australian springs. Sanitation, spacing and a spray calendar beat a single heroic fungicide Saturday.
Maya Chen · 1 March 2026
Aphids on Roses: Identification and Control
Rose aphids arrive with the first soft flush. Blast, squash, oil, and keep the ants off — before you reach for a spray that also kills the hoverflies.
Maya Chen · 18 February 2026
Yellow Leaves on Garden Plants: Causes and Fixes
Chlorosis is a clue. Learn to tell nitrogen hunger from iron lock-up, overwatering and salt, then fix the cause instead of drowning the plant in tonic.
Maya Chen · 5 February 2026
Scale Insects on Citrus Trees in Australia
Red scale, soft scale and sooty mould turn a lemon into a sticky mess. Learn how to identify scale and treat it without stripping the tree.
Maya Chen · 15 January 2026
Questions gardeners ask
Why are my plant leaves turning yellow?
Yellowing is a symptom, not a diagnosis. Older leaves yellowing first often means nitrogen is short or the plant is shedding. Yellow between green veins on new growth usually means iron is locked up in alkaline or waterlogged soil. All leaves yellowing at once points to overwatering or failed drainage.
How do I treat powdery mildew naturally?
Cut out the worst leaves, open the canopy, water the soil not the foliage, and spray a 1:9 milk-to-water mix on a dry morning. Repeat weekly. Milk will not save a collapsed zucchini in late summer, but it slows early infection on roses, peas and cucurbits.