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What is that black stuff on my citrus?
Yates
08 May 2020 12:00 PM
This is likely to be sooty mould growing on the sugary substance exuded by pest insects on the plant. You will need to control that insect to get rid of the mould. Yates Conqueror Oil will control common pests such as aphids and other sucking insects on citrus plants.
Topics: Vegetables