Can anyone tell me what seems to be the problem? Does not seem to effect the new growth, mostly older.
Mineral buildup in soil?
From Tropical Foliage Plants: A Grower's Guide p. 125-126:Leaf tip burn is a major headache for corn plant growers. It can be caused by an accumulation of boron or fluoride, high soluble salts, or moisture stress. Fluoride accumulation results in brown- or gray-colored leaf tips and margins. The necrosis progresses, frequently with a yellow halo. This problem is most common in interior situations. In commercial nurseries the most susceptible stage for tip burn is when the plants are 60 to 75% grown. At this stage the shoots may be somewhat more developed than the root systems, although still immature. Accumulation of boron results in tip burn that is more tan in color, with less of a halo.
Thanks. That's sort of what I was thinking but I expected it to look different. Fits that description perfectly though.
Thanks for this from England- I bought 10 of these plants from B and Q in Decemebr because the last plants i had – also form B and Q were such easy impressive reliable plants – and within 3 weeks of begining them home they are all suffering from large circular leaf marks and spontaneous die back !! I am going to take them back to the shop today – thank you !!
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