What's wrong with my Meyer Lemon (indoors)? Scale vs Edema...

5 years ago

last modified: 5 years ago

Hi there, long time lurker here.

I've been struggling with an issue on my indoor Meyer Lemon recently where the underside of the leaves seems to have these brown-ish bumpy lesions, causing the leaf to seem less opaque in certain lighting (it's how I first noticed it).

The tree otherwise seems healthy I guess, and recently had a flush of new growth (the new leaves don't have any lesions as of yet)

Initially I was concerned about a type of scale since I've had small amounts in the past (treated with isopropyl alcohol). But recently I saw some info about edema and was wondering if it could be that instead? So far I've tried a homemade spray of alcohol+water+soap and just recently tried Safer's EndAll as a treatment (assuming it was an infestation).

This one is after scratching the bumps with my nail.

Any help would be appreciated in diagnosing what this could be. Thanks!

Sort by:Oldest

Comments (4)

poncirusguy6b452xx
5 years ago
For the most part your tree looks good, at least better looking than any of mine. All trees have imperfection and insect attacks.
Moosa Jamal thanked poncirusguy6b452xx
Moosa Jamal
Original Author
5 years ago
Thanks :) agreed, it seems otherwise healthy (probably because of the new flush of growth I just had)

I think it looks more worrisome in person haha; all of the old leaves have developed the brown lesions and become stippled when in the light.

I'm just hoping to know if I should keep treating it, or if I can stop and assume it's environmental
Related Professionals
Syracuse Landscape Architects & Landscape Designers · San Jose Landscape Architects & Landscape Designers · San Francisco Landscape Contractors · West Palm Beach Home Builders · Columbia Home Builders · Hartford Home Builders · Sioux City Landscape Contractors · Tucson Landscape Contractors · Las Cruces Landscape Contractors · Aiken Home Additions · Mansfield Landscape Architects & Landscape Designers · Allentown Landscape Architects & Landscape Designers · Rocky Mount Landscape Contractors · Wenatchee Landscape Contractors · Medford Home Builders
Ken B Zone 7
5 years ago
I agree, tree looks healthy to me, especially for a indoors tree.
Moosa Jamal thanked Ken B Zone 7
bonsai_citrus_and_indoor_gardening
5 years ago
All in all the tree does look healthy, edema is usually caused when you have a lot of warm soil and water and a cool, humid, atmosphere. There can be other causes, but that's reported to be most common. If you're worried about it, I would check cultural conditions and see if your cultural conditions match that. If your soil is a bit more on the heavy side and staying a little more on the moist side, and your growing environment is more humid and cool, it might be edema.
Moosa Jamal thanked bonsai_citrus_and_indoor_gardening