Re: rhodos

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Posted by Newt on April 10, 2003 at 06:41:49:

In Reply to: rhodos posted by mbauer on March 30, 2003 at 04:21:37:

: It would seem I have a rhodo with marginal leaf necrosis. (Used Ohio State pages for info) The suggestion is to use Subdue Max or Alliette which suggests systemic problems rather than just leaf injury. I can remove the hurt leaves, but not sure what to do about the whole plant. Suggestions welcome!!

Hi MBauer,

Here's what I found on leaf necrosis.

"Upper leaves brown or black from tips/edges to midrib

Marginal Leaf Necrosis. Several causes. Cold damage when temperature drops below hardiness level. Drought damage while plant is in active growth or on newly established plants. High amounts of salts in the soil. This is caused by excessive use of soluble fertilizers. Root damage due to poor drainage or injury to root system. Girdling due to weevil feeding or a nutrient deficiency."

I would think you would need to determine the cause so you can eliminate it.

Good luck,

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