What root rot? - Page 2

sunfish · 01-21-2014, 02:59 PM

What causes root rot? Low Oxygen levels. (DO) Desolved Oxigen. Temp's are the main reason for root rot, Low temps will lower the DO levels ...

sunfish · 01-21-2014, 03:00 PM

Control Root Rot Caused by Overwatering or Fungus

sunfish · 01-21-2014, 03:02 PM

Guide to Getting Rid of Root Rot

sunfish · 01-21-2014, 03:04 PM

https://apps.rhs.org.uk/advicesearch...e.aspx?PID=542

sunfish · 01-21-2014, 03:05 PM

GreenCoast Hydroponics Information on Root Health and Pathogens in Hydroponic Systems

harveyc · 01-21-2014, 07:45 PM

Requirements for Plant Growth

Olafhenny · 01-21-2014, 10:38 PM

While several of the below posts explain causes for root rot, these are all general.
Plants have widely differing reaction to conditions, which cause root rot in some, but not
in others. Bananas, because they originate in humid, often soggy climes, are relatively
immune to it.

There is a good reason cacti grow wild in Arizona, but not bananas and it does not just
have to do with the odd cold spell there.

So far I have not seen any evidence, which contradicts my oft repeated assertion, that a
banana plant with healthy green leaves in a pot with a drain hole at the bottom cannot
be over-watered.

In the contrary the following two URLs, one from a member here and the other from a
professional, appear to suggest, that I have been, if anything, too conservative in my
statement:
my water bananas
and
Growing a banana tree in a pond

I am conjecturing here: Somebody in the past on this forum has experienced rotten
roots, blamed it on over-watering and announced it here. The reason might have been,
that the plant was already half dead from under-cooling, lack of light during shipping or
a raft of other causes. Because that individual was at the time one of the “most
experienced” members the story was passed on without question and is now gospel
here and served up to all newcomers without critical review, who then pass it on to....

I believe, that it is high time, that we shine a flashlight under the bed and show, that
there is no monster there and quit spreading that silly scare story.

Olaf

harveyc · 01-22-2014, 01:17 PM

The paper at Here's what happens if you don't remove pups does not mention what temperature the bananas were being grown in but does indicate that temperature has an influence on root elongation. Tropical conditions have warm weather 24 hours/day while many of the members of this forum are growing bananas in areas with cool nights. The paper also does not mention if the bananas were grown in sterile conditions.

Driving by a banana plantation next to a rice paddy without further exploration doesn't really reveal much. What are the soil conditions in the banana plantation? Rice paddies have borders which control water flow. Vigorous banana plants use great amounts of water and would reduce the amount of moisture in the soil. My farm has areas with a high water table because of my low elevation (lower than an adjacent river). Despite experiencing a serious drought, I have standing water in areas of some fields. The weather is cold (33F this morning) and plant growth is minimal. In the summer, these same fields are dry because plant growth makes use of the water (along with increased evaporation). Temperature is a very important factor that needs to be considered before making broad generalizations.

Olafhenny · 01-22-2014, 03:37 PM

Sorry, Harvey and KJ, there is a lot of esoteric information out there on the impact of the
presence/absence of oxygen on roots, of bananas or others. I am not prepared to
comment on any of the provided URLs, unless they appear to directly contradict my
assertion, which is central to my starting this threat and my related appeal to stop
spreading misinformation about root rot in bananas on this forum.

For the umptiest time: “You cannot cause root rot by over-watering a banana plant with
green leaves in a pot with a drain hole at the bottom.” For real nitpickers I should really
add: The pot should not be in a container, which allows water to accumulate to a high
level around the pot.Having said all that, over-watering is bad, because it just leaches out
the nutrients from the soil. But Bananas need lots of water, so do not hesitate to supply it.

I believe, that I have, with reference to others, provided ample evidence in this thread
to support my contention.

As far as allusions to “tropical climate” in my lead photo are concerned, let me point out
that Vikie H. is growing her pond culture in HZ6/7, a long way from the balmy tropics.

I know, how hard it is to change one's opinion on a subject, especially when involved
in spreading that opinion. I had to do it quite a few times in view of new evidence

Olaf

harveyc · 01-22-2014, 05:01 PM

Olaf, you are spreading misinformation. Get off your high horse and do some reading.

Olafhenny · 01-22-2014, 05:21 PM

I have been reading all my life and provided solid evidence for my assertions.

So what can you come up with to counter that? Placing me on an imaginary high horse
is not a valid debating point. I need substance similar to that, which I have provided.
not wild exclamations.

Abnshrek · 01-22-2014, 06:12 PM

This sets up any novice for Total Failure when it comes to growing edible bananas.
The Banana type has everything to do with at what temp a root will rot, and the other factor besides moisture is soil composition simple as that.
There are many threads with warnings of less water during winter months is wise.
I think the only purpose for this thread is trivial, and can only do any new member more harm than good if they actually read, and believe anything contained here in when it comes to growing Banana's.
So this thread is for entertainment purposes only.. :^)

Olafhenny · 01-22-2014, 07:45 PM

Quote:

Originally Posted by Abnshrek

This sets up any novice for Total Failure when it comes to growing edible bananas.

Not so Migael

Quote:

Originally Posted by Abnshrek

The Banana type has everything to do with at what temp a root will rot, and the other factor besides moisture is soil composition simple as that.
There are many threads with warnings of less water during winter months is wise.

First of all, let us define “less water”. It is clear, that all plants use less in cooler
temperatures than during the hot summer, but it is hubris to try to dictate to the plant
how much water it may use. The plant can judge that better than you and I. Thus I
water most of my plants, including bananas, whenever the soil appears dryish. Then I
water gradually until it starts seeping out at the bottom an lay off. The plant determines
the frequency of watering through its uptake. Water does not promote freezing, to the
contrary, it tends to keep the plants vigorous and resistant to disease.

As far as your "many threads" are concerned, I have addressed that in one of my
earlier posts in this thread: Someone has had an experience with root rot, blamed it
on over-watering, posted that and it became a mantra and subsequently gospel.

Quote:

Originally Posted by Abnshrek

I think the only purpose for this thread is trivial, and can only do any new member more harm than good if they actually read, and believe anything contained here in when it comes to growing Banana's.
So this thread is for entertainment purposes only.. :^)

Wrong! The purpose of this thread is to learn and for that purpose we have to keep an
open mind and not hang on to unsubstantiated believes. In a sense we are all pioneers,
trying to move tropical plants into an alien environment. And if we refuse to review
previously held ideas and concepts, we will not make any progress. Some of us have
often pups for which we do not have room. Here is a simple experiment anybody
can do: Place two pots with similar pups side by side. One you water regularly as I
have described above, the other you keep as dry as you prefer. See which one grows
or survives better. We need to experiment, but I cannot do this experiment, because I
have only HZ6 outdoors or heated indoor space. I do not have any space, with temps
in the 40es and 50es, which, I believe, you would require for this experiment.

My plants are all dormant outdoors in my shelters or actively growing indoors by the
window and watered as I described above. And none has ever developed any root rot
in four winters.

sunfish · 01-22-2014, 07:52 PM

we have to keep an
open mind and not hang on to unsubstantiated believes. Exactly

sunfish · 01-22-2014, 08:57 PM

Proven Winners | Wait, That Plant is Drowning!

sunfish · 01-22-2014, 09:00 PM

Signs of Over Watering Plants - YouTube

sunfish · 01-22-2014, 09:02 PM

Overwatering

sunfish · 01-22-2014, 09:04 PM

HOW AND WHY DOES OVERWATERING KILL PLANTS? |The Garden of Eaden

Olafhenny · 01-22-2014, 09:33 PM

Quote:

Originally Posted by sunfish

Overwatering

Juniper is a dry land plant. It grows wild in the hills above here, just at the bottom
edge of the treeline. Bananas grow wild in jungles and swamps.

Olafhenny · 01-22-2014, 09:55 PM

Quote:

Originally Posted by sunfish

HOW AND WHY DOES OVERWATERING KILL PLANTS? |The Garden of Eaden

Again I see no evidence, which suggests that root rot would occur under the conditions.
I specified I have in none of my posts denied, that root rot can occur, but none under
my conditions. However bananas seem specifically inured against root rot through
excessive moisture. See the photos evidence below.

And please no more URLs about root rot, unless you can show, that it occurs in bananas
due to over-watering. I believe, that I have supplied sufficient evidence, that it does not.
So now I want to see some real evidence to the contrary, not just a plethora of URLs,
which do not address the subject on hand.

01-21-2014, 02:59 PM	#21 (permalink)
sunfish Banned sunfish's Photo Gallery Location: San Diego Find me on the map! Zone: 9-11 Name: Tony Join Date: Apr 2008 Posts: 18,429 BananaBucks : 1,009,900 Feedback: 8 / 100% Said "Thanks" 3,210 Times Was Thanked 20,592 Times in 7,760 Posts Said "Welcome to Bananas" 2,716 Times	Re: What root rot? What causes root rot? Low Oxygen levels. (DO) Desolved Oxigen. Temp's are the main reason for root rot, Low temps will lower the DO levels ...

01-21-2014, 03:00 PM	#22 (permalink)
sunfish Banned sunfish's Photo Gallery Location: San Diego Find me on the map! Zone: 9-11 Name: Tony Join Date: Apr 2008 Posts: 18,429 BananaBucks : 1,009,900 Feedback: 8 / 100% Said "Thanks" 3,210 Times Was Thanked 20,592 Times in 7,760 Posts Said "Welcome to Bananas" 2,716 Times	Re: What root rot? Control Root Rot Caused by Overwatering or Fungus

01-21-2014, 03:02 PM	#23 (permalink)
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01-21-2014, 03:04 PM	#24 (permalink)
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01-21-2014, 03:05 PM	#25 (permalink)
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01-21-2014, 07:45 PM	#26 (permalink)
harveyc Been nuts, gone bananas harveyc's Photo Gallery Location: Isleton, Calif Find me on the map! Zone: 9b Name: Harvey Join Date: May 2007 Posts: 5,119 BananaBucks : 275,756 Feedback: 5 / 100% Said "Thanks" 6,025 Times Was Thanked 4,460 Times in 1,896 Posts Said "Welcome to Bananas" 1,785 Times	Re: What root rot? Requirements for Plant Growth __________________

01-21-2014, 10:38 PM	#27 (permalink)
Olafhenny Olafhenny's Photo Gallery Location: Penticton, BC, Okanagan Valley, Canada Find me on the map! Zone: Hardiness Zone 6 Name: Olaf Join Date: Apr 2010 Posts: 1,705 BananaBucks : 252,027 Feedback: 0 / 0% Said "Thanks" 2,050 Times Was Thanked 2,012 Times in 876 Posts Said "Welcome to Bananas" 77 Times	Re: What root rot? While several of the below posts explain causes for root rot, these are all general. Plants have widely differing reaction to conditions, which cause root rot in some, but not in others. Bananas, because they originate in humid, often soggy climes, are relatively immune to it. There is a good reason cacti grow wild in Arizona, but not bananas and it does not just have to do with the odd cold spell there. So far I have not seen any evidence, which contradicts my oft repeated assertion, that a banana plant with healthy green leaves in a pot with a drain hole at the bottom cannot be over-watered. In the contrary the following two URLs, one from a member here and the other from a professional, appear to suggest, that I have been, if anything, too conservative in my statement: my water bananas and Growing a banana tree in a pond I am conjecturing here: Somebody in the past on this forum has experienced rotten roots, blamed it on over-watering and announced it here. The reason might have been, that the plant was already half dead from under-cooling, lack of light during shipping or a raft of other causes. Because that individual was at the time one of the “most experienced” members the story was passed on without question and is now gospel here and served up to all newcomers without critical review, who then pass it on to.... I believe, that it is high time, that we shine a flashlight under the bed and show, that there is no monster there and quit spreading that silly scare story. Olaf __________________ The reason I joined this forum was to share experiences, my own and those of others and to learn from them.

01-22-2014, 01:17 PM	#28 (permalink)
harveyc Been nuts, gone bananas harveyc's Photo Gallery Location: Isleton, Calif Find me on the map! Zone: 9b Name: Harvey Join Date: May 2007 Posts: 5,119 BananaBucks : 275,756 Feedback: 5 / 100% Said "Thanks" 6,025 Times Was Thanked 4,460 Times in 1,896 Posts Said "Welcome to Bananas" 1,785 Times	Re: What root rot? The paper at Here's what happens if you don't remove pups does not mention what temperature the bananas were being grown in but does indicate that temperature has an influence on root elongation. Tropical conditions have warm weather 24 hours/day while many of the members of this forum are growing bananas in areas with cool nights. The paper also does not mention if the bananas were grown in sterile conditions. Driving by a banana plantation next to a rice paddy without further exploration doesn't really reveal much. What are the soil conditions in the banana plantation? Rice paddies have borders which control water flow. Vigorous banana plants use great amounts of water and would reduce the amount of moisture in the soil. My farm has areas with a high water table because of my low elevation (lower than an adjacent river). Despite experiencing a serious drought, I have standing water in areas of some fields. The weather is cold (33F this morning) and plant growth is minimal. In the summer, these same fields are dry because plant growth makes use of the water (along with increased evaporation). Temperature is a very important factor that needs to be considered before making broad generalizations. __________________

01-22-2014, 03:37 PM	#29 (permalink)
Olafhenny Olafhenny's Photo Gallery Location: Penticton, BC, Okanagan Valley, Canada Find me on the map! Zone: Hardiness Zone 6 Name: Olaf Join Date: Apr 2010 Posts: 1,705 BananaBucks : 252,027 Feedback: 0 / 0% Said "Thanks" 2,050 Times Was Thanked 2,012 Times in 876 Posts Said "Welcome to Bananas" 77 Times	Re: What root rot? Sorry, Harvey and KJ, there is a lot of esoteric information out there on the impact of the presence/absence of oxygen on roots, of bananas or others. I am not prepared to comment on any of the provided URLs, unless they appear to directly contradict my assertion, which is central to my starting this threat and my related appeal to stop spreading misinformation about root rot in bananas on this forum. For the umptiest time: “You cannot cause root rot by over-watering a banana plant with green leaves in a pot with a drain hole at the bottom.” For real nitpickers I should really add: The pot should not be in a container, which allows water to accumulate to a high level around the pot.Having said all that, over-watering is bad, because it just leaches out the nutrients from the soil. But Bananas need lots of water, so do not hesitate to supply it. I believe, that I have, with reference to others, provided ample evidence in this thread to support my contention. As far as allusions to “tropical climate” in my lead photo are concerned, let me point out that Vikie H. is growing her pond culture in HZ6/7, a long way from the balmy tropics. I know, how hard it is to change one's opinion on a subject, especially when involved in spreading that opinion. I had to do it quite a few times in view of new evidence Olaf __________________ The reason I joined this forum was to share experiences, my own and those of others and to learn from them. Last edited by Olafhenny : 01-22-2014 at 03:41 PM.

01-22-2014, 05:01 PM	#30 (permalink)
harveyc Been nuts, gone bananas harveyc's Photo Gallery Location: Isleton, Calif Find me on the map! Zone: 9b Name: Harvey Join Date: May 2007 Posts: 5,119 BananaBucks : 275,756 Feedback: 5 / 100% Said "Thanks" 6,025 Times Was Thanked 4,460 Times in 1,896 Posts Said "Welcome to Bananas" 1,785 Times	Re: What root rot? Olaf, you are spreading misinformation. Get off your high horse and do some reading. __________________

01-22-2014, 05:21 PM	#31 (permalink)
Olafhenny Olafhenny's Photo Gallery Location: Penticton, BC, Okanagan Valley, Canada Find me on the map! Zone: Hardiness Zone 6 Name: Olaf Join Date: Apr 2010 Posts: 1,705 BananaBucks : 252,027 Feedback: 0 / 0% Said "Thanks" 2,050 Times Was Thanked 2,012 Times in 876 Posts Said "Welcome to Bananas" 77 Times	Re: What root rot? I have been reading all my life and provided solid evidence for my assertions. So what can you come up with to counter that? Placing me on an imaginary high horse is not a valid debating point. I need substance similar to that, which I have provided. not wild exclamations. __________________ The reason I joined this forum was to share experiences, my own and those of others and to learn from them.

01-22-2014, 06:12 PM	#32 (permalink)
Abnshrek Happy Growing Abnshrek 's Photo Gallery Location: Beaumont Texas Find me on the map! Zone: 8b, but 9b weather.. Name: Migael / Michael Join Date: Aug 2009 Posts: 9,493 BananaBucks : 216,498 Feedback: 45 / 100% Said "Thanks" 10,447 Times Was Thanked 16,443 Times in 5,238 Posts Said "Welcome to Bananas" 2,318 Times	Re: What root rot? This sets up any novice for Total Failure when it comes to growing edible bananas. The Banana type has everything to do with at what temp a root will rot, and the other factor besides moisture is soil composition simple as that. There are many threads with warnings of less water during winter months is wise. I think the only purpose for this thread is trivial, and can only do any new member more harm than good if they actually read, and believe anything contained here in when it comes to growing Banana's. So this thread is for entertainment purposes only.. :^) __________________ I'm a Nannerhead :^)

01-22-2014, 07:52 PM	#34 (permalink)
sunfish Banned sunfish's Photo Gallery Location: San Diego Find me on the map! Zone: 9-11 Name: Tony Join Date: Apr 2008 Posts: 18,429 BananaBucks : 1,009,900 Feedback: 8 / 100% Said "Thanks" 3,210 Times Was Thanked 20,592 Times in 7,760 Posts Said "Welcome to Bananas" 2,716 Times	Re: What root rot? we have to keep an open mind and not hang on to unsubstantiated believes. Exactly

01-22-2014, 08:57 PM	#35 (permalink)
sunfish Banned sunfish's Photo Gallery Location: San Diego Find me on the map! Zone: 9-11 Name: Tony Join Date: Apr 2008 Posts: 18,429 BananaBucks : 1,009,900 Feedback: 8 / 100% Said "Thanks" 3,210 Times Was Thanked 20,592 Times in 7,760 Posts Said "Welcome to Bananas" 2,716 Times	Re: What root rot? Proven Winners \| Wait, That Plant is Drowning!

01-22-2014, 09:02 PM	#37 (permalink)
sunfish Banned sunfish's Photo Gallery Location: San Diego Find me on the map! Zone: 9-11 Name: Tony Join Date: Apr 2008 Posts: 18,429 BananaBucks : 1,009,900 Feedback: 8 / 100% Said "Thanks" 3,210 Times Was Thanked 20,592 Times in 7,760 Posts Said "Welcome to Bananas" 2,716 Times	Re: What root rot? Overwatering

01-22-2014, 09:04 PM	#38 (permalink)
sunfish Banned sunfish's Photo Gallery Location: San Diego Find me on the map! Zone: 9-11 Name: Tony Join Date: Apr 2008 Posts: 18,429 BananaBucks : 1,009,900 Feedback: 8 / 100% Said "Thanks" 3,210 Times Was Thanked 20,592 Times in 7,760 Posts Said "Welcome to Bananas" 2,716 Times	Re: What root rot? HOW AND WHY DOES OVERWATERING KILL PLANTS? \|The Garden of Eaden

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