Ask a Question forum: PJM leaf discoloration

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Michigan
Ilya
Jun 25, 2017 5:09 PM CST
I had 6 PJMs planted 2 years ago. Last 1.5 years two of them have weird leaf discoloration. The other 4 don't. I'm. It sure what this is. Can anyone help? I'm posting a picture of the leaves. Seems like the leaves are dark green with yellow patterns/spots.
Thumb of 2017-06-25/Ilya/824f8e

Name: Lin
Southeast Florida (Zone 10a)

Region: United States of America Deer Region: Florida Charter ATP Member Million Pollinator Garden Challenge I was one of the first 300 contributors to the plant database!
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plantladylin
Jun 25, 2017 5:21 PM CST
Hi Ilya, I don't know what PJM stands for but just thought I'd say Welcome! to the site! I'm sure someone will be along with help soon if they recognize the plant.
~ Playing in the dirt is my therapy ... and I'm in therapy a lot! ~


Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
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sooby
Jun 25, 2017 5:27 PM CST
Welcome!

It looks very much like this picture, which is said to be lacebug damage. Have you checked the plant for pests?

https://www.google.ca/search?q...

More pics including some of lacebugs:

https://www.google.ca/search?q...
Name: Carol
Santa Ana, ca
Sunset zone 22, USDA zone 10 A.
Charter ATP Member Hummingbirder Lover of wildlife (Black bear badge) Orchids Region: California Plant Identifier
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ctcarol
Jun 25, 2017 5:28 PM CST
I don't know what PJM is either, but that looks like mite damage to me.
Name: Lin
Southeast Florida (Zone 10a)

Region: United States of America Deer Region: Florida Charter ATP Member Million Pollinator Garden Challenge I was one of the first 300 contributors to the plant database!
Garden Procrastinator Birds Butterflies Bee Lover Hummingbirder Container Gardener
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plantladylin
Jun 25, 2017 5:29 PM CST
My first thought was mite damage too but I didn't know what the plant was so didn't want to offer advice.
~ Playing in the dirt is my therapy ... and I'm in therapy a lot! ~


Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
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sooby
Jun 25, 2017 5:31 PM CST
This Mobot page explains what PJMs are - they'll be more familiar to those of us in northern climates:

http://www.missouribotanicalga...
Michigan
Ilya
Jun 25, 2017 5:33 PM CST
Thanks all for the replies. I'm pretty new to gardening so any and everything helps. PJMs are Rhododendrons as Sie was so kind to link to.
Name: Lin
Southeast Florida (Zone 10a)

Region: United States of America Deer Region: Florida Charter ATP Member Million Pollinator Garden Challenge I was one of the first 300 contributors to the plant database!
Garden Procrastinator Birds Butterflies Bee Lover Hummingbirder Container Gardener
Image
plantladylin
Jun 25, 2017 5:36 PM CST
Yep ... I'm waaaay south and although I know of Rhododendron, I'd never heard of a PJM group. Green Grin!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot! ~


Name: Carol
Santa Ana, ca
Sunset zone 22, USDA zone 10 A.
Charter ATP Member Hummingbirder Lover of wildlife (Black bear badge) Orchids Region: California Plant Identifier
Image
ctcarol
Jun 25, 2017 5:38 PM CST
We can always learn something new on this site. PJMs are not something I'll ever be growing, but knowledge never hurts. Hilarious!
Name: Sandy B.
Ford River, Michigan UP (Zone 4b)
(Zone 4b-maybe 5a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Sages Million Pollinator Garden Challenge Seed Starter Vegetable Grower
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Weedwhacker
Jun 25, 2017 7:10 PM CST
I have a PJM -- my thought was that the yellowing was caused by chlorosis due to soil with too high of pH. Ilya, do you use an acid-lover type of fertilizer, or anything else to lower the pH of your soil?
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Michigan
Ilya
Jun 25, 2017 9:09 PM CST
Again, thank you all. I applied Bonide Rose RX 3-in-1 spray, which should take care of mites.

@Weedwacker, thanks for the tip. I checked the ph level of the soil and it seems around 6.5. Generally, I think we're until it hits 7, right?

Thanks again all. This forum is great!!!

Ilya
Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
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sooby
Jun 26, 2017 2:22 AM CST
Did you look for the lacebugs as mentioned above? Here again are the pics of their damage and the bugs;

https://www.google.ca/search?q...

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