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Yellow needles #675532 - Ask Extension

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Yellow needles #675532

Asked September 23, 2020, 9:52 AM EDT

Just planted a blue shag pine in my garden. I am keeping it watered and moist, but its needles are rapidly turning yellow and falling off. It does not look like the pine needle rust; rather clumps of needles are turning bright yellow and falling off. Thanks, Mary

Hennepin County Minnesota

Expert Response

Without a picture, it is difficult to assess the problem.  These trees are susceptible to a number of problems as outlined in the following website.  Please send pictures of the entire tree, a complete branch and a closeup of the needles that are just turning yellow next to healthy needles.

See:  http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=u960

Marykay Haas Replied September 23, 2020, 11:53 AM EDT
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On Wed, Sep 23, 2020 at 10:53 AM Ask Extension askextension@eduworks.com> wrote:
mary kaczorek Replied September 24, 2020, 7:55 PM EDT

Because I can see no spots or partially colored needles or abnormalities, this appears to be seasonal needle drop.  This is common on white pines.  See:  http://apps.extension.umn.edu/garden/diagnose/plant/evergreen/pine/needlesolderdiscolored.html

Marykay Haas Replied September 26, 2020, 9:03 AM EDT

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