shrubs - Knowledgebase Question

Edinburg, Te
Question by marisabel915
June 6, 2009
I have I think they are called japanese or chinese pitisporum like shrubs in my front yard. a couple of years ago 3 of them turned brown on several branches & I had to cut that part. what could it be? doing the same thing again. eats part of the plant only.


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Answer from NGA
June 6, 2009

0

The pittosporum dieback sounds like a lower fungal stem canker and/or a fungal crown rot. This is an obvious blackened to gray discoloration in the lower stem or crown area of the plant. Infection damages the vascular tissue in that critical area, interfering with the movement of water to the upper portion of the plant, causing limb and branch die back. If the entire crown is involved, the entire plant usually declines and dies. There is no control other than to keep the plant non-stressed and actively growing. Try feeding your pittosporum with a general purpose 10-10-10 and pruning them back a little each spring to encourage healthy new growth. Best wishes with your shrubs.

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