Heather
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on February 19, 2012
It sounds like it may have tip blight (also called twig blight). It is generally caused by a fungus but you can get similar symptoms if the plant has thrips. I would recommend that you treat the plant with neem oil. It is both a pesticide and a fungicide, so it will take care of both issues, regardless of which is causing the tip blight.
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