Hoya carnosa leaves slowly turning yellow

[debbadoozy]

My hoya has been with me for a few years and it's pretty healthy. About 6-7 months ago I found a few mealy bugs on it and removed them and rubbed Neem oil on all leaves and stems. No problem with the bugs for now. A couple of months ago I noticed that the leaves are slowly going from deep green to a bright yellowish green. I don't see anything that could be causing this problem except a little dust.

 

[Matriste]

Is your plant still healthy?

 

[debbadoozy]

Hey Matriste. It took me long enough. I've been frustrated with my dyeing succulents and then I got the Shingles. Whew! My Hoya seems ok. It's growing but to me it doesn't look like it's at it's best. I have to go back and look at the photo I posted when I was really worried about it. Thanks so much for asking. I just took this photo.