04 December 2020 03:07 PM
Thank you for contacting Yates.
The fruits are infested by rust mites. To control, try 'Yates Lime Sulfur - Insect and Disease Control' to control a range of insect pests and fungal diseases on roses & ornamentals, citrus, grapevines, apples, some stone fruits, tomatoes & vegetables. Click here for more info on this product: https://www.yates.com.au/product/garden-pest-control/yates-lime-sulfur