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<pre>I have recently come across some damaged leaves on a young tree and cannot
readily explain the cause, but I suspect some form of herbicide, perhaps
Roundup (glyphosate) may be the culprit. However, this is only a suspicion
based on a process of elimination of other potential causes as I have no
idea what the effects of spray-drift of Roundup onto foliage looks like! Can
anybody describe the effects?

What I have is leaves that are slightly stunted and are curling back along
the length of the leaf, with death of tissue at the tip. This is quite
different to the curling along its length of a desicated leaf, as the leaf
remains quite flat, but curls up and back.

The affected leaves are also a paler green heading towards a yellow shade.
This seems to affect odd trees in a block, not one whole patch so this
pattern leads me to feel that it isn't a nutrition or insect pest problem,
or a waterlogging problem (due mainly to the lack of rain!).

Regards,

Mike Wilson
Hunter Valley.
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