Toggle navigation

A scaly problem

A pest is producing little black beads all over the stems and leaves of my mandarin tree?

These are the sap-sucking pest, scale, and you have done the right thing by spraying with Eco-oil, as this is good for preventing scale and controlling larvae. However Eco-oil won't be enough to control a large infestation. Start treating with Yates Scale Gun as per instructions on the package until they are gone. Continue spraying with Eco-oil every fortnight to prevent another infestation.