Observation 112677: Elsinoe ledi

When: 2012-10-07

Collection location: MP 7.6 E. Larch Mountain Rd., Multnomah Co., Oregon, USA [Click for map]


Who: Daniel B. Wheeler (Tuberale)

No specimen available

According to the website above, this is the most common fungal disease of salal (Galtheria shallon) in Oregon. Often seen, more often overlooked.

Species Lists


More widely affected area on leaf surface. Whitish spots usually, with reddish-brown interior.
Underside of salal leaf showing beginning of fungus just starting.
Most affected underside of salal leaf I could find.

Proposed Names

46% (3)
Recognized by sight
4% (3)
Recognized by sight: The first picture looks like an insect leaf mine.

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
The first image
By: Byrain
2012-10-08 19:53:19 MDT (-0600)

Only shows a leaf mine as far as I can tell, none of your images looks like Elsinoe ledi should look like.

I posted 3 photos for a reason.
By: Daniel B. Wheeler (Tuberale)
2012-10-08 16:55:59 MDT (-0600)

The spots shown in all 3 photos are the same thing. The insect-thing only shows in the first photo. Ergo, I am showing a different observation than just insecta.

Leaf spots
By: Byrain
2012-10-08 11:43:21 MDT (-0600)

I singled out the first picture for a reason, i’m not sure what the 2nd and 3rd picture show, but reading your own source the macro does not appear right for Elsinoe ledi.

“Spot anthracnose is grayish white with a red-brown border and purple margin.”

Your pictures shows brown spots without any purple margin, also, google images shows many images of insect leaf mines with brownish/reddish blotches.

It may well be insecta also.
By: Daniel B. Wheeler (Tuberale)
2012-10-08 11:20:14 MDT (-0600)

But insecta would not account for the reddish blotches on upper and lower surfaces of the leaf.

Leaf mine
By: Byrain
2012-10-08 10:50:03 MDT (-0600)

The larva of the moth Cameraria gaultheriella leaves blotchy leaf mines on the uperside of the salal leaves. More info:


You may want to try bugguide.net, they might be able to confirm/correct my guess.

Created: 2012-10-07 16:37:35 MDT (-0600)
Last modified: 2012-10-08 16:56:38 MDT (-0600)
Viewed: 112 times, last viewed: 2018-03-30 09:21:50 MDT (-0600)
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