Return to the Citrus Forum | Post a Follow-Up

Lemon Tree leaves spotting up

Posted by KHershey 5 (My Page) on
Tue, Jul 29, 14 at 15:14

Hi everyone,
I'm hoping some of the very knowledgeable folks on here can help me. I got a meyers lemon tree in February from Amazon as a gift. I potted it up, and for the last 6 months it seemed to be doing very well. It went from one little twig to a branched out shrub shape- lots of new growth and it's flowered a couple times. :) I'm currently letting two lemons grow on the older branches (they're a little bigger than a golf ball and still green). I love my tree and have been so happy with its progress!
Recently though, I noticed a few yellowish looking spots on the tops of the leaves. They look like transparent spots in the leaves because they only show up when the sun is shining through the tree branches. On the bottom side of the leaves are tiny little bumps in the leaf surface that seem to correspond with the yellow spots on top. They've spread to almost every leaf, and I don't know what to do. :( Please, can someone help me before more damage happens?
Here's the pertinent info:
-My tree is in a ceramic pot with Miracle Gro Cactus soil mix.
-It's in a south facing window with an east facing window next to it, and a grow bulb above it.
-I water it once every 7-10 days when the soil dries out.
-I use DynaGro Foliage Pro fertilizer each watering per the instructions on the package.
-In between watering I mist the leaves to keep the humidity levels up..
-I can't find any evidence of pest damage (other than the spots on the leaves).
What am I doing wrong for my poor tree?! Can someone please help?

Follow-Up Postings:

RE: Lemon Tree leaves spotting up

Here's a photo of the bottom of the leaves, since the upload only allows for one at a time.

RE: Lemon Tree leaves spotting up

Here's my tree's set-up just in case...

RE: Lemon Tree leaves spotting up

Looks like you have a case of spider mites. If you have a 10x loupe, you can see them; if you don't have a 10x loupe, buy one; a lot of the critters that attack citrus can't be seen by the naked eye.
You can find lots of discussion on this forum about treatment of spider mites.

RE: Lemon Tree leaves spotting up

Thanks, Johnmerr!
I didn't know I needed to be on the lookout for INvisible pests as well as the visible ones. :) I'll be sure to get that loupe.
I found a thread that gave great reviews for a mix of Neem oil, Rosemary oil, and DynaGro Pro-tek for taking care of spider mites. I'm going to give that a try. Thanks so much for your help!

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Citrus Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here