Why has my Lilly pilly lost its vibrant colour?

[acicco]

 

 

Hi we have a Lilly pilly screening hedge that has been well for quite some time but recently it has lost its vibrant colour and has instead turned a very dull green, almost a matte like finish with some white chalkiness, appearing somewhat unhealthy. There’s some very small pockets of more vibrant healthy fresher leaves but few and far between. I couldn’t find any relevant Lilly pilly diseases through Google search that describe this issue to help with a resolution. I may be missing something very obvious though. I’ve added photos for reference but it may be a little hard to depict the exact colouration issues. Any advice would be great. Thanks in advance. Alex

[mich1972]

Many thanks to you @acicco for posting extra photos as it definitely makes it easier to see what the problem is. I agree with both @Noelle and @EricL . Keep in contact if you need any further information 🪴😃