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Phormium mealybug

Symptoms

Smudges of white, waxy deposits appear at the base of phormium leaves, deposited by sap-feeding insects. The mealybug can cause loss of vigour in the plant and, in extreme cases, death.

Find it on: phormiums
Time to act: all year round

Overview

The culprit is Trionymus diminutus, a 4mm sap-feeding mealybug that breeds relentlessly when the weather is warm and isn't killed by winter frosts. It deposits a white, waxy substance at the base of the sheathed phormium leaves. A mild infestation is not a problem, but in excess the plants will suffer and could even die.


Solution

Smudges of white, waxy deposits appear at the base of phormium leaves, deposited by sap-feeding insects. The mealybug can cause loss of vigour in the plant and, in extreme cases, death.

Organic

Destroy infested plants. Check new plants carefully to make sure they are not infected.




Discuss this problem

Talkback: Phormium mealybug
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sterelitza 05/12/2014 at 06:16

I have several different varieties of Phormium in my garden. Recently when some of them were being trimmed back I noticed mealybug at the bade of the leaves. How can I get rid of this pest, is there a drench or spray available? Any remedy that will not harm neighbouring plants is preferable.