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diseased salal #858278
Asked February 01, 2024, 2:23 PM EST
Lane County Oregon
Expert Response
A lot of salal bushes have leaves turning gray/white with purple spots. It would appear that you are seeing plants infected with a fungi named spot anthracnose. This fungi produces spots that are grayish white with a red-brown border and purple margin. The fungi has been controlled by removal of the dead, dying and infected leaves from the plant and cleaning the area below the plant. There are no chemical controls labeled specifically for this fungi but fixed copper has proven effective in some cases.
Phyllosticta species are also a common cause of brown spots on salal in western Oregon. In addition to P. pyrolae and P. vaccinii, we also see Dasyschypha sp. and Pestalopezia sp. locally, and a whole host of other fungi are found on salal elsewhere in the pacific northwest. Phyllosticta leaf spots are nearly circular and brown with pale centers.
Dear svandyck301,
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YOUR QUESTION #0128202:
diseased salal
what is wrong with this salal? The leaves are covered with a whitish powder, and others have many black spots. The owner, Celia, cut it way down before but the new leaves soon developed the same problem. When you respond can you also please cc my relative Celia , in whose garden this is happening. Her email is: <personal data hidden>. Thank you.Ask Extension offers one-to-one expert answers from Cooperative Extension/University staff and volunteers within participating Land-Grant institutions across the United States.
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