These holes started appearing in my Teddy Bear Magnolias. Any ideas?
Initially, I suspected insects, such as caterpillars, but I haven't seen any around my plants, and the holes don't seem consistent. I then considered a fungal infection, like shot hole disease.
Any thoughts?
Some background information:
– Location: Western Australia
– Plants are potted, around 100L each
– Previously overwatered for a long time, now reducing watering
– Recently applied Scotts Osmocote Plus Organics 1.5kg Rose Gardenia and Azalea Plant Food and Soil Improver
– Recently used Advanced Garden Insect Killer
– Recently applied Liquid Copper
– Sometimes, I apply Popul8 and Seasol
by Bumble-Boop