Knockout roses

my knockout roses have tiny spiked pinkish leaves. Do I have a virus or fungus?
Submitted by maggiemagoo312

Without seeing the leaves I can't be certain what is causing the unusual leaves on your Knockout roses. Sometimes the initial leaves in spring can be deformed by cool or unusual weather conditions that happened during the bud stage. It's also possible that your plants may have become infected with rose rosette virus. Here's a link to a good article with pictures of rose rosette from the Missouri Botanic Garden. http://www.mobot.org/gardeninghelp/plantfinder/ipm.asp?code=104

Answered by DSchrock

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