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Home > Archive > Austin Gardening > May 2007 > sick pittosporum
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| jim evans 2007-05-15, 1:25 pm |
| Why are the leaves on this pittosporum becoming yellow?
http://img113.imageshack.us/img113/...p21450737jg.jpg
These plants are 27 years old. This problem began early this year and has
progressed to more and more of the plant, until about 50%-60% is blighted.
jim
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| Omelet 2007-05-15, 1:25 pm |
| In article <u3rj435t7gmol9egip48r5ca87ueqkctjp@4ax.com>,
jim evans <jimsTAKEOUTnews2@houston.rr.com> wrote:
> Why are the leaves on this pittosporum becoming yellow?
>
> http://img113.imageshack.us/img113/...p21450737jg.jpg
>
> These plants are 27 years old. This problem began early this year and has
> progressed to more and more of the plant, until about 50%-60% is blighted.
>
> jim
Looks like a deficiency, possibly Iron?
How and what are you feeding it?
--
Peace, Om
Remove _ to validate e-mails.
"My mother never saw the irony in calling me a Son of a XXXXX" -- Jack Nicholson
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| jim evans 2007-05-15, 5:25 pm |
| Omelet <omp_omelet@gmail.com> wrote:
>In article <u3rj435t7gmol9egip48r5ca87ueqkctjp@4ax.com>,
> jim evans <jimsTAKEOUTnews2@houston.rr.com> wrote:
>
>
>Looks like a deficiency, possibly Iron?
>
>How and what are you feeding it?
Ordinary 5-10-5 fertilizer.
I should have mentioned, the parts that first started showing the yellow leaves
have now died completely.
jim
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| Omelet 2007-05-15, 5:25 pm |
| In article <1tvj43ttogrljl4gu0ijir3snjfss1jqkm@4ax.com>,
jim evans <jimsTAKEOUTnews2@houston.rr.com> wrote:
> Omelet <omp_omelet@gmail.com> wrote:
>
>
> Ordinary 5-10-5 fertilizer.
>
> I should have mentioned, the parts that first started showing the yellow
> leaves
> have now died completely.
>
>
> jim
Are they separate root systems?
--
Peace, Om
Remove _ to validate e-mails.
"My mother never saw the irony in calling me a Son of a XXXXX" -- Jack Nicholson
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| WoolyGooly 2007-05-15, 5:25 pm |
| Mites, aphids or some other pest?
On Tue, 15 May 2007 13:46:08 -0500, jim evans
<jimsTAKEOUTnews2@houston.rr.com> wrote:
>Omelet <omp_omelet@gmail.com> wrote:
>
>
>Ordinary 5-10-5 fertilizer.
>
>I should have mentioned, the parts that first started showing the yellow leaves
>have now died completely.
>
>
>jim
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| jim evans 2007-05-15, 5:25 pm |
| Omelet <omp_omelet@gmail.com> wrote:
>
>Are they separate root systems?
No, parts of the same plant.
jim
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| Omelet 2007-05-15, 5:25 pm |
| In article <r53k43l9m4t23qie84vhhmqg1hs1uhk58c@4ax.com>,
jim evans <jimsTAKEOUTnews2@houston.rr.com> wrote:
> Omelet <omp_omelet@gmail.com> wrote:
>
>
> No, parts of the same plant.
>
> jim
Okay, that should rule out a soil problem. :-)
Any neighbors using aerosols?
--
Peace, Om
Remove _ to validate e-mails.
"My mother never saw the irony in calling me a Son of a XXXXX" -- Jack Nicholson
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| jangchub 2007-05-15, 8:25 pm |
| On Tue, 15 May 2007 12:23:37 -0500, jim evans
<jimsTAKEOUTnews2@houston.rr.com> wrote:
>Why are the leaves on this pittosporum becoming yellow?
>
>http://img113.imageshack.us/img113/...p21450737jg.jpg
>
>These plants are 27 years old. This problem began early this year and has
>progressed to more and more of the plant, until about 50%-60% is blighted.
>
>jim
this looks like it could be iron chlorosis. Normally, our clay soils
do have plenty of iron, but it is unavailable due to the high pH
levels. I do not think you can fix the affected foliage at this
point, but you can make the iron more available by watering them with
magnesium in the form of epsom salt. Take a cup of epsom salt in a
gallon of water and water the plant near the drip line. Do this once
every three weeks.
Your plants also may be suffering from dry conditions OR wet
conditions.
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"jangchub" <jangchub@sakadawa.com> wrote in message
news:8cdk43t5mr9cfo0dobeu3r9l60bda4527j@4ax.com...
> On Tue, 15 May 2007 12:23:37 -0500, jim evans
> <jimsTAKEOUTnews2@houston.rr.com> wrote:
>
>
> this looks like it could be iron chlorosis. Normally, our clay soils
> do have plenty of iron, but it is unavailable due to the high pH
> levels. I do not think you can fix the affected foliage at this
> point, but you can make the iron more available by watering them with
> magnesium in the form of epsom salt. Take a cup of epsom salt in a
> gallon of water and water the plant near the drip line. Do this once
> every three weeks.
>
> Your plants also may be suffering from dry conditions OR wet
I don't agree with the chlorosis. The veins are yellow and the leaf is
green. This is similar to what an oak leaf looks like when it has oak wilt.
I think there is root problem of some sort but I have no clue as to what
that might be. Over the past 27 years it is hard to think that we haven't
had wetter conditions than what we experienced this year. The only thing I
can suggest is that you try a product called Super Thrive. It has a hokey
looking label that makes all sorts of wild claims, however it seems to have
a positive affect on sick plants. I have seen it at Home Depot. Organic
nurseries should also carry it.
Good Luck, I will be watching to see what the final outcome is.
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| jangchub wrote:
> On Tue, 15 May 2007 12:23:37 -0500, jim evans
> <jimsTAKEOUTnews2@houston.rr.com> wrote:
>
>
>
>
> this looks like it could be iron chlorosis. Normally, our clay soils
> do have plenty of iron, but it is unavailable due to the high pH
> levels. I do not think you can fix the affected foliage at this
> point, but you can make the iron more available by watering them with
> magnesium in the form of epsom salt. Take a cup of epsom salt in a
> gallon of water and water the plant near the drip line. Do this once
> every three weeks.
>
> Your plants also may be suffering from dry conditions OR wet
> conditions.
Iron deficiency shows up on new growth and is green veins with yellow
leaves. Once iron is in the leaf it doesn't leave (no pun intended).
I found this:
http://image.fs.uidaho.edu/vide/descr619.htm
Good luck. It may be the result of another mineral problem but I
couldn't find one that yellowed the veins of older leaves.
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| jim evans 2007-05-16, 1:25 pm |
| Omelet <omp_omelet@gmail.com> wrote:
>Okay, that should rule out a soil problem. :-)
>
>Any neighbors using aerosols?
I don't know what an aerosol is but none of my close neighbors do anything to
their yard plants
jim
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| jim evans 2007-05-16, 1:25 pm |
| jangchub <jangchub@sakadawa.com> wrote:
>Your plants also may be suffering from dry conditions OR wet
>conditions.
I'm fairly sure neither of those is so. We've lived here for 20 years and this
year hasn't been either extreme -- wet or dry. It was an unusually mild winter.
jim
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| jim evans 2007-05-16, 1:25 pm |
| jOhN <us271934SPAMNYET@yahoo.com> wrote:
>I found this:
>http://image.fs.uidaho.edu/vide/descr619.htm
Thanks. That sounds like it could be it. Sure wish they had pictues. They
don't suggest a treatment.
jim
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| Omelet 2007-05-16, 1:25 pm |
| In article <4k9m435dd1jr9fa5lfvkuqc8bekqlqilqf@4ax.com>,
jim evans <jimsTAKEOUTnews2@houston.rr.com> wrote:
> Omelet <omp_omelet@gmail.com> wrote:
>
> I don't know what an aerosol is but none of my close neighbors do anything to
> their yard plants
>
> jim
Aerosols are things that travel thru the air.
Sprays.
In that case, you most likely need to explore soil problems, especially
considering the age of the plant.
Have you Googled? :-)
http://www.google.com/search?hl=en&...rum&btnG=Search
--
Peace, Om
Remove _ to validate e-mails.
"My mother never saw the irony in calling me a Son of a XXXXX" -- Jack Nicholson
| |
| Omelet 2007-05-16, 1:25 pm |
| In article <lcbm43hmuh33h3rl01sde60epurs8g9to4@4ax.com>,
jim evans <jimsTAKEOUTnews2@houston.rr.com> wrote:
> jOhN <us271934SPAMNYET@yahoo.com> wrote:
>
>
> Thanks. That sounds like it could be it. Sure wish they had pictues. They
> don't suggest a treatment.
>
> jim
Take a sick branch to Gardenville...
Seriously.
They saved my English Ivy when I did that.
Turns out the wet weather was causing fungal root rot.
Their treatment worked.
--
Peace, Om
Remove _ to validate e-mails.
"My mother never saw the irony in calling me a Son of a XXXXX" -- Jack Nicholson
| |
| jangchub 2007-05-17, 8:25 pm |
| On Wed, 16 May 2007 10:46:10 -0500, jim evans
<jimsTAKEOUTnews2@houston.rr.com> wrote:
>jangchub <jangchub@sakadawa.com> wrote:
>
>I'm fairly sure neither of those is so. We've lived here for 20 years and this
>year hasn't been either extreme -- wet or dry. It was an unusually mild winter.
>
>jim
We have different memories then. It was relatively cold this past
winter and gave my 400 chill hour peach tree enough hours below 45
degrees for me to actually have peaches. The year before we didn't
have any frost. It was also a drought for two years, not we are ahead
of the game with rain for this year.
They could just be old. The other day I noticed one of my shrubs was
thinning. Actually it was a month ago. So, I pruned out every
growing tip to beak what's called the apical dominance. That forces
new shoots from either the ground or lower and deeper into the shrub.
The other day I noticed I have two feet of growth at the base of this
shrub (Texas sage) and I cut the whole shrub back to the new shoots.
Drastic, yes, but the shrub will be much nicer, fuller and now I can
pay attention to it better not letting it get leggy.
This has nothing to do with your shrubs, but maybe you can use a can
of lysol and take your pruners and on a ladder cut out the growing
tips to stimulate new growth and remove the visually effected stems.
Just make sure you use the lysol each cut you make. I always err on
the safe side with specimen plants.
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