enter image description here

Is this mushroom or animal? I can remove the black dots by slightly scratching the leaves.


1 Answer 1


If you can remove them from the leave then they are scale. Due to the dark colour I believe they are Black Scale (Saissetia oleae). They suck juices from the plant and excrete a sugary sap. Look for sticky leaves. Ants are sometimes seen in close company with these pests.

For small plants some control can be done with soap and water but a complete answer is here.

They are described here and an excellent answer on maintenance of citrus is here

Edit @RockScience feels they are a different species of scale for which a reference can be found here. Either way soap and water and possibly a toothbrush for "hands on" pest control will work.

  • thank you very much for your help. After some research based on your hint, it seems to be 'Parlatoria ziziphi', which is indeed a variety of black scale. The leaves are not really sticky but comparing my plant with pictures of this scale is clear. Aug 23, 2013 at 16:43
  • dspace.unict.it/bitstream/10761/1219/1/… for a good reference Aug 23, 2013 at 17:43

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.