HomeRoast Digest


Topic: I got flowers! (20 msgs / 384 lines)
1) From: Paul Goelz
Hey gang,
I just discovered that both my coffee plants (about 6 years old) have 
flowers!  Not many, but they are there.  Are cherries next?
These plants have had a checkered past.... they almost died many 
times when they were babies because I forgot to water them.  And one 
of them was so severely frostbitten that I thought it was dead.  But 
they both came back and seem to be doing quite well all things considered.
If I could only figure out what the "rust" is on some of the leaves.
Paul
Paul Goelz
Rochester Hills, MI
paul at pgoelz dot comhttp://www.pgoelz.com

2) From: Sandy Andina
Intelligentsia told us to keep our plant indoors with tons of light  
and humidity but to water it only once a week--and sparingly at that.  
Wonder if that'll make it flower eventually. If it took yours 6 yrs  
for flowers (it takes grapevines 3 yrs to bear fruit) maybe cherries  
will be next!
On Jul 2, 2006, at 7:37 AM, Paul Goelz wrote:
<Snip>
Sandy Andina
www.sandyandina.com

3) From: rnkyle
Sandy thats great, I had two going good but the brown leaf dasease got them 
so I thought I'd stump them but I cut them to close to the grown and 
although the stem and roots seemed to be alive it never did shoot up again.
I hope you get some coffee cheeries
RK

4) From: Paul Goelz
At 12:51 PM 7/2/2006, you wrote:
<Snip>
Yeah, assuming it is one cherry per flower, I may have enough for 
about 1/8 of a cup ;)
I did see a little bee busily pollinating though.  Or at least 
eating..... I guess unless the other plant is the opposite sex, there 
won't be much arabica pollen available?
Paul
Paul Goelz
Rochester Hills, MI
paul at pgoelz dot comhttp://www.pgoelz.com

5) From: Brian Kamnetz
According to Tom, "Robusta coffee is the trade name for Coffea
canephora, a different species of coffee from the genus Coffea and
cousin to the higher-grown Coffea arabica L. that is the basis for
specialty coffee" (http://www.sweetmarias.com/coffee.robusta.html).
I'm not much of a botanist (or biologist in general). Does what Tom
says mean that you don't have to worry about your little arabica plant
being pollenated by a stray robusta plant?
Brian
On 7/2/06, Paul Goelz  wrote:
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6) From: Andy Thomas
--- Brian Kamnetz  wrote:
<Snip>
The answer to that question is ... maybe. Some species
of closely related plants can hybridize and reproduce,
although I don't know if that is the case with Coffea
arabica x C. canephora. The inability to interbreed
defines species of animals, but that rule doesn't
necessarily apply to plants.
Andy, also not a botanist, but sometime I play one on
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7) From: Andy Thomas
<Snip>
The "rust" may be a viral disease called ... rust. At
least I think it's a virus. If so, you should find out
and fix it ASAP. That will probably involve pinching
off the affected leaves. But find out from a more
knowledgeable source than I am before you do anything drastic.
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8) From: =?ISO-8859-1?Q?Juan_M._J=E1come?=
my coffeeplants do have the rust as well, I saw somewhere that it is a
mineral defficiency, maybe calcium or nitrogen. And I think I read somewher=
e
that arabica coffee is self pollinating, but am not sure. Will try to find
the sources and repost.
Regards,
Juan M. Jácome
2006/7/2, Andy Thomas :
<Snip>

9) From: Michael Wascher
There seem to be many definitions of sprecies:http://en.wikipedia.org/wiki/SpeciesOn 7/2/06, Andy Thomas  wrote:
<Snip>
-- 
"There is nothing new under the sun but there are lots of old things we
don't know." --  Ambrose Bierce

10) From: Paul Goelz
At 07:37 PM 7/2/2006, you wrote:
<Snip>
Thanks Juan (and others),
The browning of the leaves seems to be related to 
leaving the plants outside when the outside temps 
dropped below maybe 45 degrees.  But it has been 
warm for a long time now and the browning seems 
to be somewhat worse than it was when I 
inadvertently left them out in the early spring.
I have now seen photos of "rust" and it looks 
different.... more like spots that spread.  In my 
case, the browning seems to start in an area of a 
leaf and very slowly worsen and spread, but it is 
irregular in shape, not circular or spotted.
I think I'll look for some fungicide and apply it 
and see what happens..... anyone see any problem 
with applying a topical fungicide?
As for cross pollinating with robusta..... I 
think it is pretty certain that my two plants are 
the only ones around that are flowering..... for miles.
Paul
Paul Goelz
Rochester Hills, MI
paul at pgoelz dot comhttp://www.pgoelz.com

11) From: Sandy Andina
Unless I plant a couple of Disgusta beans, not very likely!
On Jul 2, 2006, at 6:45 PM, Brian Kamnetz wrote:
<Snip>
Sandy Andina
www.sandyandina.com

12) From: Steven Sobel
Actually rust is a fungal disease.  Check out this site for more
information:http://www.apsnet.org/online/feature/biodiver/coferust.htmlSteve
On 7/2/06, Andy Thomas  wrote:
<Snip>

13) From: Paul Goelz
At 11:22 AM 7/3/2006, you wrote:
<Snip>
Thanks, been there already ;)
Trouble is that a lot of sites like that one talk all about the 
fungus but not about how to treat it.  And I am getting the 
impression that there are a couple issues involved with treating 
it.  Like the fact that some (most?) fungicides are topical / 
preventive and will not treat an existing infection.
I'm off to the garden shop to see what I can find.....
Paul
Paul Goelz
Rochester Hills, MI USA
paulhttp://www.pgoelz.com

14) From: =?ISO-8859-1?Q?Juan_M._J=E1come?=
check these out:http://www.coffeeresearch.org/agriculture/mineral.htmhttp://forums.gardenweb.com/forums/load/higard/msg0420032021256.html?1
Cheers,
Juan M. Jácome
2006/7/3, Steven Sobel :
<Snip>

15) From: Paul Goelz
At 02:49 PM 7/3/2006, you wrote:
<Snip>
earch.org/agriculture/mineral.htm
<Snip>
Wow, good stuff!  Now all I have to do is figure 
out if it really is a deficiency or a 
fungus.  The interesting bit is that it seems to 
be very closely linked to leaving the plant 
exposed to colder temperatures and dew.... not 
quite frost temperatures but close.  Once I bring 
them indoors, they seem to be fine for the 
duration of the winter.  When I put them out on 
the deck in the spring, it can happen again if it 
is too cold.  If it was a mineral deficiency I 
would expect it to show up throughout the winter?
As for pollinating, the flowers are withered and 
shriveled today.  They were perfect yesterday.  I 
take that to mean that they served their 
purpose.  ????  There was a little bee busily messing with them.
Paul
Paul Goelz
Rochester Hills, MI USA
paulhttp://www.pgoelz.com

16) From: Andy Thomas
Thanks for the correction.
--- Steven Sobel  wrote:
<Snip>http://www.apsnet.org/online/feature/biodiver/coferust.html<Snip>
<Snip>
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17) From: Steven Sobel
Paul,
I wish you luck.  My understanding of rust is that it can be prevented only,
that once you see the damage it is too late for the leaf.  From what I
remember, any infected leaves should be removed and destroyed.  Antifungal
sprays will help to prevent further infection.
Another place you can check for information is the Department of
Agriculture, State of Michigan.  I know that the U of Michigan doesn't have
a department of Agriculture but you could check with your county to see if
they have a "county agent" who might have some insight.
Finally, you could check with some "garden centers" to see if they have a
master Gardener who might be able to help you.  It would help to either
bring an infected leaf or some pictures of the tree.
Good luck.
Steve
On 7/3/06, Paul Goelz  wrote:
<Snip>

18) From: Aaron
I want to say copper salts work well for getting rid of rusts.  Ill have 
to dig out the stuff  I  use on my pepper plants and check but im pretty 
sure it's like a copper or copper soap of a type.  Also, keep in mind 
that if you have rust, there's a good chance you might have other fungii 
or ailments on the plants as well.   From what I remember one of the 
main contributing factors to these is excessive water.  It seems that 
every time we'd have a nice stretch of 2 or 3 days of rain with no sun 
and the plants would sit there soggy, id see hints of problems.  In 
other words, don't just treat the symptoms, you need to find out why 
this came about and correct that situation as well or you will just end 
up spending a ton of $$$ on crap to throw on your plant and end up very 
disappointed when the thing ends up dying anyways.
Good luck and if I dont post by tomorrow noon what that stuff was named 
that I used, kick me in the arse and remind me.
Aaron

19) From: Paul Goelz
At 09:18 PM 7/5/2006, you wrote:
<Snip>
Thanks.  I went to the store yesterday and got some Ortho anti fungal 
stuff.... they say it "used to be called" Daconil.  Leaves a white 
powdery residure on the leaves when it dries.  I trimmed the really 
bad leaves off and it looks pretty good now.  We'll see what happens 
from now forward.
If I don't answer you right away it is because I will be away from 
Email for the next week.  Going camping and if you can believe it, 
I'm taking the coffee plants with me!  They decorate the campsite and 
I can keep an eye on them too.  Hey, some people take their dogs.....
Paul
Paul Goelz
Rochester Hills, MI USA
paulhttp://www.pgoelz.com

20) From: Steven Sobel
I'm sure the plant would like to see Lake Michigan.  The cool lake breeze
would probably benefit it.
Steve
On 7/5/06, Paul Goelz  wrote:
<Snip>


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