Aquaponics Digest - Fri 06/01/01
Message 1: Re: Affordable Source of Beds
from Jim
Message 2: Re: NO -- DON'T DELETE IT -- Re: Fw: VIRUS - READ THIS NOW!!!
from WILLHENRYM 'at' aol.com
Message 3: [aquaponics] Thanks !
from dreadlox 'at' cwjamaica.com
Message 4: shade cloth
from "Tony Cooper"
Message 5: BASIL
from "Ray & Margi Gibbison"
Message 6: Hydroponic Mushrooms
from DAVEINBHAM 'at' aol.com
Message 7: Re: BASIL
from "gutierrez-lagatta"
Message 8: Temperature ranges
from Jim Joyner
Message 9: Re: Basil
from Katie Rezendes
Message 10: Re: Basil
from Katie Rezendes
Message 11: RE: shade cloth
from "Hurst, Steve ( China)"
Message 12: Re: Aquaponic Cantaloupe. from "TGTX"
Message 13: Re: affordable beds
from "Steven Medlock"
Message 14: Re: affordable beds
from "TGTX"
Message 15: Re: Basil
from LC543119 'at' aol.com
Message 16: Re: Basil
from "bennett"
Message 17: Re: BASIL
from "TGTX"
Message 18: Re: BASIL
from "Claude Gelinas agr."
Message 19: RE: Pond Aerator Solutions
from "Glen E. Morrow"
| Message 1
Subject: Re: Affordable Source of Beds
From: Jim
Date: Fri, 01 Jun 2001 06:08:42 -0500
Hi Bill,
No noticeable effect on pH. Same as raceways, you'll see a ph spike if
you don't clean them thoroughly to begin with, but even then that should
drop right off
If you saw any appreciable long term pH effect, your
cement wouldn't hold up.
I used the cementboard for sides and bottom and seal the joints with RTV
Silicone (same as fish tanks). Since the cementboard variety I used is
only 3/8", I wanted a little extra support. I used 5/8" CDX plywood for
the bottom, painted with a couple coats of generic acrylic latex
exterior paint, and pressure treated timbers for the sides due to the
abrasion/abuse they see. I also use more blocks (6 columns) than some
others I've seen, but then again I'm a little afraid of knocking over
the beds with the golfcart I use to haul everything around.
Jim
Yes, I'm too lazy to use a wheelbarrow.
Bill Patrick wrote:
>
> Jim,
>
> A few questions on Wonderboard grow beds.
>
> Jim Jr wrote:
> >
> > Something I've used to build tanks and beds is fiber reinforced cement
> > board (WonderBoard) intended for lining shower stalls and flooring
> > bathrooms.
>
> Wonderboard being at masonry product, did you see much of an effect from
> it on the PH of the growbeds? Maybe this is similar to concrete
> raceways.
>
> Frame the sides with treated 2x12 timbers and add a 3/4"
> > plywood floor and line with the WonderBoard.
>
> Did you use Wonderboard on the sides also? And was the plywood bottom
> also pressure treated?
>
> Thanks,
> Bill
| Message 2
Subject: Re: NO -- DON'T DELETE IT -- Re: Fw: VIRUS - READ THIS NOW!!!
From: WILLHENRYM 'at' aol.com
Date: Fri, 1 Jun 2001 08:14:38 EDT
Please Unsubscribe for now.
Thanks
| Message 3
Subject: [aquaponics] Thanks !
From: dreadlox 'at' cwjamaica.com
Date: Fri, 01 Jun 2001 11:26:46 -0700
Thanks, many thanks to all those who supplied bookmarks topics and
ideas, I will be doing the page this weekend. I have had no offers to
sort bookmarks as yet. Maybe we will just have to place presorted
bookmarks under the categories.
Anyone want to sort please volunteer
!!
Mike, (Jamaica.)
| Message 4
Subject: shade cloth
From: "Tony Cooper"
Date: Sat, 2 Jun 2001 01:35:11 -0700
Steve,
I use black nylon fishing net with about a 1/4" mesh. It is often sold as
orchid netting at hardware stores.
If you want professional agri grade shade cloth contact Hoobee packaging
corp E-mail: hoobee 'at' pacific.net.ph
they are in Mandaluyong Manila, contact Elbert Tiu. They have several
different materials with varying shade levels up to 80%.
They also sell imported UV proof poly roof sheet by roll or yard, i have
some in use for 2 years, been through several typhoons and assorted storms,
blew right off the roof frame once but no damage at all, marvelous stuff and
fairly cheap.
I joined my seams with 2" clear packaging tape and never had to fix a seam
yet.
Another bonus is it offers 10% shade, just don't let it come in direct
contact with pvc pipe as the chloride in the pvc will attack it.
Hope this helps
Tony Cooper.
| Message 5
Subject: BASIL
From: "Ray & Margi Gibbison"
Date: Fri, 1 Jun 2001 22:45:24 +0200
Hi
Our annual (December) fishing trip to the Zambezi River combines visiting
with family (who live in Zimbabwe) and catching "bream" (mostly tilapia
mossambicus) for the camp fire. The return trip (usually just after New
Year) to South Africa means twelve hours on the road: what seems a
harebrained "resolution" now seemed perfectly feasible in the confines of
the motor car!
In other words, we couldn't think why we had not thought of farming tilapia
before and there was a mad dash for the Internet when we got home. A: go to
Encyclopaedia Britannica and look up "bream" Umm
. B: Look up "Mossambicus"
Oh- when you farm fish it is called "aquaculture" . You now have an idea of
our experience with fish- catch and release or eat it!
Needless to say, within days we were hassling Paula to send us the S 'at' S
package - when it hadn't arrived within a day we woke her up really early on
a winters morning to find out why it still did not have it (mixed up the
time difference- endearing thing to do). This was infatuation at it's best-
all the traits were there. We blew hot and cold, worked really hard and then
not at all, "passionate" arguments ensued and spent a lot of time
daydreaming watching the fish go by. I knew it was real love when I
handwashed four tons of gravel.
Five months later: a greenhouse, four growing beds, fish and plants all a
reality: not perfect but it works. Been there, done that with the nitrate
spike, bugs, too hot, too cold, money out, nothing in etc etc. Paula has
been put forward for sainthood and I thought I would give her a
reak -instead of making my problems her problems, I will try and make them
yours.
Now it the time to confess to "lurking" on the website - I have enjoyed
every moment "eavesdropping" and good manners fought with trying to think
of something to say- not usually a problem for me as you will have noticed.
Thank you, a little belatedly, for the deluge of information that has
confused, astounded and provided more than a few lateral thinking platforms:
but mostly I have great fun putting faces to characters and being "global "
in Bronkhorstspruit- a really small town half an hour out of the city of
Pretoria.
Today's problem:
Basil: grown from seed sown in growing bed early March. Seed packet says it
will mature in 120 days: Internet research says 30-35 days. How tall is
mature?
I have not actually seen a mature basil plant: just those dinky ones they
sell in herb pots that die in the kitchen a week after purchase. Growth to 3
or 4 inches was really quick then about three weeks ago black spots (aka
akin to those that appear on rose leaves) appeared on some of the leaves.
Pinched out all leaves showing disease which has encouraged growth lower
down the stem: but the black spot still pitches up on the more mature
leaves, now with a yellowing of the leaf as well. How do I determine if the
growth has slowed down because of disease or lack of nutrients? How do I get
rid of the bug? I have looked up an amazing number of websites for basil but
cannot find pictures or any in depth articles that deal with more than the
basic facts.
We have great water clarity and we can see the amount of faeces processed
daily from about 400 fish. I have been supplementing the beds with kelp
based "Seagro"- a commercial plant fertiliser.
Paula tells me that we are the only people doing the S 'at' S system in South
Africa at the moment, although she has had other queries this year.When
suggesting solutions please bear in mind that there is no aquaponic
infrastructure in South Africa. I have just completed a second greenhouse to
start a hatchery system as the fingerling supplier can provide about 100 at
a time. Don't ask how we got our first tank going but it involved netting
the local golf club dam!
In conclusion: let middle-aged people beware of New Year's resolutions.
Hare-brained ideas become obsessions and you too will spend a Friday evening
emailing all and sundry about your basil plants.Any advice appreciated
especially if they include a photograph of said helper.
Best Regards from Bronkhorstspruit
Margi Gibbison
| Message 6
Subject: Hydroponic Mushrooms
From: DAVEINBHAM 'at' aol.com
Date: Fri, 1 Jun 2001 17:28:14 EDT
Carlos,
Sorry, but I do not have any more information on this subject. The incident
happened about 15 years ago. The mushroom grower's day job was professor of
physiology at the University of Alabama at Birmingham. My day job was
Electronics Engineer for the Vision Science Center at said university. I
built electronic equipment you cannot buy. ( Sounds impressive, bit it did
not pay a helluva lot. )
My hobbies at that time did not include either hydroponics or mushrooms, but
I have been growing orchids for about 30 years as of now. At that time, I had
read a couple of books on hydroponics so I knew what it was.
As I go back into my memoriy of the incident, the mushrooms were growing in
plastic containers in a white substrate
. probably pearlite or something
similar. The fertilizer was a nearly clear liquid in glass carboys doc had
probably lifted from a labatory. Pumps were Grainger mag drive units.
There were 3 growing trays in the old chest type freezer. One contained
oyster mushrooms, one contained a small black mushroom about 50 millimeters
tall with stems about 4 millimeters in diameter and an umbrella shaped cap
about 12 to 15 millimeters in diameter. The third bin was not fruiting when I
saw it.
I did not have time to play with hydroponics until after I retired from the
above mentioned job. I have done a small ( 8ft X 30 ft ) demonstration
hydroponic flood and drain system at the Birmingham Botanical Gardens for a
few years. And, curiously, I have started to grow a few mushrooms recently. I
am growing Oyster mushrooms on toilet paper and on spent brewing grains left
over from my beer homebrewing hobby.
Do you, or anyone else reading this, know of an ACTIVE mushroom discussion
group online ? I have a few question about mushroom culture that I have not
found covered in the textbooks I have read so far.
Kindest regards,
Dave Holder
Birmingham, Alabama
******************************************************************
Subject: RE: Hydroponic Mushrooms
From: "Carlos Arano"
Date: Wed, 30 May 2001 20:51:19 -0300
Dave:
Maybe I'm getting old. Since 1995 I'm also out of mushrooms production
and it is possible that I don't know some advances in new technology on the
subject.
But I need from you more precision on your statements. In my life I
heard several times that somebody here or there was growing mushrooms
hydroponically. Germans seem to be near. But I never heard they got it.
Maybe you are talking about soilless culture. Well, most mushrooms are
grown by soilless culture methods. Compost is not soil. But hydroponically,
extrictly hydroponically (nutrient solution alone or with a inert
substrate), nobody could give me proofs UNTIL NOW.
From more than 3000 different kinds of mushrooms in the nature, which of
them you have seen? It will be nice if you can get more information.
Scientifically mushrooms is an amazing subject.
I will appreciate your next comment. Maybe I am wrong in my actual
thinking and I will have to change it. I am far from the big scientific
research world.
Regards,
Carlos
| Message 7
Subject: Re: BASIL
From: "gutierrez-lagatta"
Date: Fri, 1 Jun 2001 16:48:46 -0500
Welcome Margi!
How great to expand the global range of this colorful group!
How tall is mature basil? When it's big enough to cut and sell - I
found this to be at about 45-50 days. It will be about 6" tall.
REALLY mature basil, the ready-to-tear out stage, will get woody stems
and the growth will not be as lush and beuatiful. Under heavy
production this will happen at 4-5 months after seeding. Some people
are using the single-cut and then tear out method to sell gorgeous
first-cut tender basil every time, others allow it to grow back and
recut until it gets woody. It's your choice. If you recut be sure to
do so just above a node so that the plant will branch out for you.
> Basil: grown from seed sown in growing bed early March. Seed packet
says it
> will mature in 120 days: Internet research says 30-35 days. How tall
is
> mature?
Ah, those dreaded black spots. I got them on my basil in Florida, at
first it was a spot then they got a "bull's-eye" pattern. I could
never get a definitive diagnosis of the problem. I think we even
e-mailed photos to the hydroponic gurus in the University. Just
remove the leaves, and if a plant is very infested tear it out
completely. Once a plant gets them you can't get rid of it on that
plant.
> I have not actually seen a mature basil plant: just those dinky ones
they
> sell in herb pots that die in the kitchen a week after purchase.
Growth to 3
> or 4 inches was really quick then about three weeks ago black spots
(aka
> akin to those that appear on rose leaves) appeared on some of the
leaves.
> Pinched out all leaves showing disease which has encouraged growth
lower
> down the stem: but the black spot still pitches up on the more
mature
> leaves, now with a yellowing of the leaf as well.
If the color is off I would attribute it to nutrient issues. For
yellowing, I would suspect either an iron or magnesium deficiency.
Did you by any chance have your source water analyzed before you
started this venture?
> growth has slowed down because of disease or lack of nutrients? How
do I get
> rid of the bug? I have looked up an amazing number of websites for
basil but
> cannot find pictures or any in depth articles that deal with more
than the
> basic facts.
Once again, welcome. Did Paula send you the 12-Step Program Kit also?
Adriana Gutierrez
Birmingham, AL
| Message 8
Subject: Temperature ranges
From: Jim Joyner
Date: Fri, 01 Jun 2001 17:12:25 -0500
Does anyone know the ideal temperature ranges for different fish?
Here's my concern: If, for example, you grow Tilapia which have a ideal
temp range in 80s(F), if you try to grow strawberries, the plants are
likely to thrive but there'll be no fruit because the blossoms require, I
think, low 60s to set. I realize I'm talking air temp and water temp but
I'm assuming that if water is moving constantly between tank and beds all
the time those temps are going to be pretty close.
So that would mean, I think, that the plants you grow have to matched
somewhat to the temps the particular fish like.
Comments? Ideas?
Thanks,
Jim
| Message 9
Subject: Re: Basil
From: Katie Rezendes
Date: Fri, 01 Jun 2001 19:56:33 -0400
Dear Mr. Creaser,
Thanks for the reply. I hope you didn't take the "out of is mind" thing
personal, It just sounded to good to be true. If I did I apologize.
I used to subscribe to Aquaponics Journal and have read many of your
articles and also have enjoyed the questions and answers section. Keep
up the great work.
With your vast knowledge on the subject, if you were just starting a new
greenhouse business, what would your crop selection be. And would you
grow it using aquponics or hydroponics.
LC543119 'at' aol.com wrote:
>
> Keven ,Katy, when we started growing herbs in a hydroponic system
> which was
> over 10 years ago, we were the first to sell herbs in a plastic bag in
> half
> oz portions, the market has since gone to plasic containers and now
> one oz
> ,however the company I started is still selling in plasic bags and has
> sales
> in the millions, Gordon Creaser. It is good to see you reading
> Future Grow
> which is an English quality magazine.
| Message 10
Subject: Re: Basil
From: Katie Rezendes
Date: Fri, 01 Jun 2001 20:00:11 -0400
Thanks for the info but I cant find a web site for Monte Packaging, You
wouldn't know the address by any chance.
gutierrez-lagatta wrote:
>
> Check the Monte Packaging site. I have spoken with his client who is
> doing this for Melissa's on several occasions and it is quite a bit
> of labor and the volumes required are high. She has quite an
> investment in her operation.
>
| Message 11
Subject: RE: shade cloth
From: "Hurst, Steve ( China)"
Date: Sat, 2 Jun 2001 00:27:03 +0100
Thanks Tony,
That has helped a lot.
I already tried my local Hardware stores ( Tarlac ) but they don 'at' t carry
a lot of stock ( of anything ! ).
I will drop you a note off-list. I beleive you might be pretty close
to me
Steve H
SNIP
Steve,
I use black nylon fishing net with about a 1/4" mesh. It is often sold as
orchid netting at hardware stores.
If you want professional agri grade shade cloth contact Hoobee packaging
corp E-mail: hoobee 'at' pacific.net.ph
they are in Mandaluyong Manila, contact Elbert Tiu. They have several
different materials with varying shade levels up to 80%.
They also sell imported UV proof poly roof sheet by roll or yard, i have
some in use for 2 years, been through several typhoons and assorted storms,
blew right off the roof frame once but no damage at all, marvelous stuff and
fairly cheap.
I joined my seams with 2" clear packaging tape and never had to fix a seam
yet.
Another bonus is it offers 10% shade, just don't let it come in direct
contact with pvc pipe as the chloride in the pvc will attack it.
Hope this helps
Tony Cooper.
| Message 12
Subject: Re: Aquaponic Cantaloupe.From: "TGTX"
Date: Fri, 1 Jun 2001 18:49:50 -0500
Thank you, sunpeer.
This is close to one of my goals. Not commercially, but avocationally
Danke, Gracias, Thank ye, and Appreciate It.
Ted
> some nice photos of a NASA project growing hyrdo sweet potato :
>
> http://advlifesupport.jsc.nasa.gov/SweetPotato.html
| Message 13
Subject: Re: affordable beds
From: "Steven Medlock"
Date: Fri, 1 Jun 2001 19:14:54 -0500
----- Original Message -----
From: Al Thompson
To:
Sent: Thursday, May 31, 2001 9:26 PM
Subject: affordable beds
> Hi All:
>
> I looked for some animal troughs that might be suitable
> for use as growbeds. I found the Long Feed Trough shown
> here:
>
> http://rubberlineinc.com/FEEDERS.htm
>
> Any thoughts as to their suitability?
>
> Thanks,
> Al
> I see those around the farms here. I don't know why they woulden't work,
as long as they are deep enough and have a adaptable drain. Assuming that
you are using the S&S system. The Co. I used was Polytuff by Behlen. I can
get a little more info if needed. where are you located? Maybe I can get a #
of the co. for you. I can call my local store and get the no.
Steve
>
| Message 14
Subject: Re: affordable beds
From: "TGTX"
Date: Fri, 1 Jun 2001 19:10:44 -0500
Suitable? maybe?
Affordable? Maybe not compared with some alternatives.
> Hi All:
> I looked for some animal troughs that might be suitable
> for use as growbeds. I found the Long Feed Trough shown
> here:
> http://rubberlineinc.com/FEEDERS.htm
> Any thoughts as to their suitability?
> Thanks,
> Al
| Message 15
Subject: Re: Basil
From: LC543119 'at' aol.com
Date: Fri, 1 Jun 2001 20:46:03 EDT
--part1_93.b59abe1.2849914b_boundary
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Kevin Katy, what I advise my clients to do is to start with a hydroponic
system and learn all its ins and outs then when you are comfortable with the
hydroponics then I would venture into aquaponics , if you need to make a
living from your venture hydroponics is much more profitable and when the
fish are introduced it adds a little cream to the pot, if you would like to
have a chat you can call me at 407- 671 5075, I will be home for a few days
before I go to Ghana Gordon Creaser
--part1_93.b59abe1.2849914b_boundary
Content-Type: text/html; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Kevin Katy, what I advise my clients to do is
to start with a hydroponic
system and learn all its ins and outs then when you are comfortable with the
hydroponics then I would venture into aquaponics , if you need to make a
living from your venture hydroponics is much more profitable and when the
fish are introduced it adds a little cream to the pot, if you would like to
have a chat you can call me at 407- 671 5075, I will be home for a few days
before I go to Ghana Gordon Creaser
--part1_93.b59abe1.2849914b_boundary--
| Message 16
Subject: Re: Basil
From: "bennett"
Date: Fri, 1 Jun 2001 20:47:51 -0400
This is a multi-part message in MIME format.
------=_NextPart_000_00E0_01C0EADC.1FE54E00
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Hello Gordon,
I'm so glad you are on our list.
Sorry, I can't call - must use those long-distance pennies for my =
hydro and aqua ponics.:-) =20
What cash crop do YOU think is the easiest for a beginner to both =
learn on and make a few pennies doing so?
Donna B.
-----Original Message-----
From: LC543119 'at' aol.com
To: aquaponics 'at' townsqr.com
Date: Friday, June 01, 2001 8:46 PM
Subject: Re: Basil
=20
=20
Kevin Katy, what I advise my clients to do is to start with a =
hydroponic=20
system and learn all its ins and outs then when you are comfortable =
with the=20
hydroponics then I would venture into aquaponics , if you need to =
make a=20
living from your venture hydroponics is much more profitable and =
when the=20
fish are introduced it adds a little cream to the pot, if you would =
like to=20
have a chat you can call me at 407- 671 5075, I will be home for a =
few days=20
before I go to Ghana Gordon Creaser=20
------=_NextPart_000_00E0_01C0EADC.1FE54E00
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Hello Gordon,
I'm so =
glad you are=20
on our list.
Sorry, I can't call - must use those =
long-distance=20
pennies for my hydro and aqua ponics.:-)
What cash crop do YOU think is the easiest =
for a=20
beginner to both learn on and make a few pennies doing so?
Donna =
B.
-----Original =
Message-----
From:=20
LC543119 'at' aol.com <LC543119 'at' aol.com>
To: =
aquaponics 'at' townsqr.com =
<aquaponics 'at' townsqr.com>
=
Date:=20
Friday, June 01, 2001 8:46 PM
Subject: Re:=20
Basil
Kevin=20
Katy, what I advise my clients to do is to start with a hydroponic=20
system and learn all its ins and outs then when you are =
comfortable with=20
the
hydroponics then I would venture into aquaponics , if you =
need to=20
make a
living from your venture hydroponics is much more =
profitable and=20
when the
fish are introduced it adds a little cream to the =
pot, if=20
you would like to
have a chat you can call me at 407- 671 5075, =
I will=20
be home for a few days
before I go to Ghana Gordon=20
Creaser
------=_NextPart_000_00E0_01C0EADC.1FE54E00--
| Message 17
Subject: Re: BASIL
From: "TGTX"
Date: Fri, 1 Jun 2001 20:32:26 -0500
Margi, I just gotta say I truely enjoyed your story. Just Wonderful.
Welcome
.welcome
. or Willkommen?? I am, along with other in-born
difficulties,
linguistically challenged.
> daydreaming watching the fish go by. I knew it was real love when I
> handwashed four tons of gravel.
Tough Love
Tough Love
great for the upper body strength, but tough
> Today's problem:
> Basil: grown from seed sown in growing bed early March. Seed packet says
it
> will mature in 120 days: Internet research says 30-35 days. How tall is
> mature?
Well, mature to some botanical minds might mean going to seed
.you can
easily start harvesting basil in 28 to 35 days and continue to cut the tops
for continuous harvest, racing against the flowering phase, and still
harvest even while it is flowering. Basil went absolutely crazy in my
system during the warm months. Just nuts. Out of control
I couldn't
sell it all. I think the market was saturated, but people loved it
I
should have been more hip to the packaging and marketing
.I should have
gone with mass marketing, but I didn't and there you go
.I made enough
pesto to float a battleship
.and that was for my own consumption.I LOVE BASIL, SO I GUESS THAT MAKES ME AN HONORARY TOMATO>>>
> rid of the bug? I have looked up an amazing number of websites for basil
but
> cannot find pictures or any in depth articles that deal with more than the
> basic facts.
Tell me about the actual temperature high and low in your greenhouse, and if
you can, the humidity cycle from day to night. Cool nights with
accompanying condensation might contribute to necrotic spots.
> a time. Don't ask how we got our first tank going but it involved netting
> the local golf club dam!
Ha!! Beautiful!!! After you have generated a few custom generations of
Tilapia after careful and artistic selection of "sports" spontaneously
generated within your system, maybe you could call your local strain "Babe
Dietrich" or "Tiger Woods" or "Lee Trevino", or "Jack Nicklaus". Or how
about more standard terms of art like "Fairway"
"Birdie"
"Par"
or
even "Mulligan" for the more pedestrian, run of the mill, aquaponic fish?
Beats names like "Chocolate or Cherry or Penny" any day of the week.
> In conclusion: let middle-aged people beware of New Year's resolutions.
> Hare-brained ideas become obsessions
Yes indeed. Great to hear from y'all.
Keep swinging, follow through, and watch that slice.
Be the ball. Be the ball.
Tedzo
(Rusty lug nut golf course groundskeeper.)
| Message 18
Subject: Re: BASIL
From: "Claude Gelinas agr."
Date: Fri, 1 Jun 2001 21:58:39 -0400
Le ven, 01 jun 2001, vous avez écrit :
> says it
> > will mature in 120 days: Internet research says 30-35 days. How tall
> is
> > mature?
mature basil can grow to about 3 feet
>
> Ah, those dreaded black spots. I got them on my basil in Florida, at
> first it was a spot then they got a "bull's-eye" pattern. I could
> never get a definitive diagnosis of the problem. I think we even
> e-mailed photos to the hydroponic gurus in the University. Just
> remove the leaves, and if a plant is very infested tear it out
> completely. Once a plant gets them you can't get rid of it on that
> plant.
On basil large black spot are caused by pseudomonass bacteria. they produce
large black spot very fast
smaller black spot are caused by corynespora fungus or simply by potassium
deficiency.
In some country foliar nematode are a serious problem and produce small black
spot that enlarge very fast
>
> If the color is off I would attribute it to nutrient issues. For
> yellowing, I would suspect either an iron or magnesium deficiency.
yellow young leaf are often a manganese problem. th ebasal part of the young
leaf turn yellow mainly between vein.
> Did you by any chance have your source water analyzed before you
> started this venture?
> > growth has slowed down because of disease or lack of nutrients? How
> do I get
> > rid of the bug? I have looked up an amazing number of websites for
> basil but
> > cannot find pictures or any in depth articles that deal with more
> than the
> > basic facts.
>
> Once again, welcome. Did Paula send you the 12-Step Program Kit also?
>
> Adriana Gutierrez
> Birmingham, AL
Hope this help
--
Claude Gélinas Agr., D.T.A.
PHYTO Ressources
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| Message 19
Subject: RE: Pond Aerator Solutions
From: "Glen E. Morrow"
Date: Fri, 1 Jun 2001 21:54:34 -0500
I would argue profusely with the statement " Water receives oxygen
.never from aeration bubbles"
most of the municipal wastewater treatment plants use air bubbles to add air
to the wastewater. typically the smaller (fine bubble aeration) bubbles are
better than the larger (course bubble aeration) bubbles. typically the
smaller bubbles are needed when the depth is less and the greater depth will
allow courser bubbles, as small bubble diffusers tend to clog easier and
thus require more maintenance.
also look to the typical fish tank with the bubble aerators, they all seem
to work just fine.
-----Original Message-----
From: aquaponics-request 'at' townsqr.com
[mailto:aquaponics-request 'at' townsqr.com]On Behalf Of Bruce Schreiber
Sent: Monday, May 28, 2001 12:30 PM
To: aquaponics 'at' townsqr.com
Subject: Re: Pond Aerator Solutions
Mike Water receives oxygen by surface contact movement at the pond or
tank surface and never from aeration bubbles the air bubblier just acts
as a pump to move water around the system up to the surface for air
exchange so if you agitate the surface in any way you are doing good
Try putting a venturi in line at the pump exhaust into the tank or
construct a riffle shoot that the water runs over for a distance before
dropping back into the fish tank this also significantly adds surface
area to the tank/pond and that is a good thing it looks like a gold
prospectors sluice that the water riffles over and that does work so do
both at once make it out of wood
Bruce
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