Ammar Bader Sir

Most probably the above galls on the leaves of Eucalyptus camaldulensis is formed by Ophelimus maskelli, commonly known as eucalyptus gall wasp.

https://earthlingnature.wordpress.com/2019/11/01/friday-fellow-eucalyptus-gall-wasp/

https://www.inaturalist.org/taxa/408051-Ophelimus-maskelli

Thanks!

Ammar Bader Sir

Eucalyptus camaldulensis is more attacked by Ophelimus maskelli than the other species of Eucalyptus.

Article First Record of Leptocybe invasa and Ophelimus maskelli Euca...

Article Biology, revised taxonomy and impact on host plants of Ophel...

Thanks!

This is caused by eriophyid mites or mites of Eriophyidae. There are many species in the family, and you should collect galls or mite samples, and send them to experts for identification.

Most probably Ophelimus maskelli, not a mite.

Ophelimus maskelli, the Eucalyptus Gall Wasp, is the insect responsible for these galls.

I'm sorry I can't help you, as my field of work is mosquitoes and I have no idea about the insect that is causing the damage