Fw: Fw: Fw: [Texascavers] leaf-cutter ants in Mexico

2010-02-03 Thread JSSchneider1


  I would sure like to know if guano from an insectivore works! I like the 
idea of going after the leafcutters garden. I am going to try growing some Jack 
Beans and putting the  leaves on the mounds - supposed to kill the leafcutter's 
fungus. 

  --- On Mon, 2/1/10, JSSchneider1 jsschneid...@peoplepc.com wrote:


From: JSSchneider1 jsschneid...@peoplepc.com
Subject: Fw: Fw: [Texascavers] leaf-cutter ants in Mexico
To: Edie Ymail Clark ediecl...@ymail.com
Date: Monday, February 1, 2010, 10:22 PM


Edie,

Another reply from your leaf-cutter ant notes

- Original Message - 
From: Cook, Brett 
To: JSSchneider1 ; texascavers@texascavers.com 
Sent: Monday, February 01, 2010 9:42 AM
Subject: RE: Fw: [Texascavers] leaf-cutter ants in Mexico


I’m with you. They stop being fascinating when they strip plants that 
are important to you. 

The only thing I’ve found that stops them is Tanglefoot. They check it 
out, find out it’s too gooey to cross, and move on. It works, but it takes a 
lot of time to apply and re-apply to each plant.

I finally decided that if they’re going to attack my garden, I’m going 
after theirs.

I’ve been looking for a good fungicide I can spray my plants or the 
ground with that will deter them, but no luck so far. Bait doesn’t work, and 
poison on the mound only makes them look for an alternate route. I even tried a 
systemic on my plants called Imidacloprid. It kept the aphids away, but not the 
leaf-cutters.

This year, I’m going to try fertilizing with guano from an insectivore. 
Bat guano is supposed to have anti-fungal properties, and being an insectivore 
means there’s a possibility of spreading an insect-specific pathogen that will 
affect the ants.

I’ve read that some folks have had success with collecting the wastes 
from the ants themselves and scattering that around their plants. I have yet to 
find an ant waste pile.



Brett




From: JSSchneider1 [mailto:jsschneid...@peoplepc.com] 
Sent: Tuesday, January 19, 2010 4:36 PM
To: Texas Cavers
Subject: Fw: Fw: [Texascavers] leaf-cutter ants in Mexico





  I used to think they were fascinating until they began to cart 
off most of  my garden seedlings. A  M's website has some useful information 
on Texas Leafcutters. The only thing I have found that works is to follow their 
trail back to the mound, and either use Amdro Ant Block ( not just regular 
Amdro), or Viper ( permethrin- which is a synthetic pyrethrin). Viper works 
right away, and Amdro Ant Block takes a couple of weeks to work.You have to 
keep at it.  The label says you can dust your plants with Viper, but I don't 
put anything directly on my vegetable garden plants, just on the ant mound. 

  --- On Mon, 1/18/10, JSSchneider1 jsschneid...@peoplepc.com 
wrote:



  - Original Message - 

  From: Gill Edigar 

  To: Denise P 

  Cc: TexasCavers 

  Sent: Monday, January 18, 2010 10:31 AM

  Subject: Re: [Texascavers] leaf-cutter ants in Mexico



  I am pretty sure--like 99%--that we had them in South Texas when 
I was a kid. I remember well watching them but don't recall a specific 
location--meaning, probably, that they were a common enough occurrence that 
they didn't invoke any great interest worthy of remembering.  



  There were some ants in South Texas that made underground nests 
which humped up above ground (sorta like fireant mounds except 10x bigger) and 
which created large subsurface voids. On more than one occasion we were unlucky 
enough to drive over these mounds hidden by tall pasture grass and the front 
tire of the pick-up fell into them and the truck got stuck and we had to get 
towed out. It is my recollection that these were a type of leaf-cutter ant 
which, by the way, don't (or didn't) sting. Those events DID create specific 
memories. 

  --Ediger







  On Mon, Jan 18, 2010 at 9:29 AM, Denise P pepabe...@hotmail.com 
wrote:

  I have heard a number of gardeners in the central Texas area 
complaining about them decimating their crops. I hear they are very hard to 
control.
   
  -d
   
   From: bmixon...@austin.rr.com
   To: texascavers@texascavers.com
   Date: Mon, 18 Jan 2010 09:23:50 -0600
   Subject: [Texascavers] leaf-cutter ants in Mexico 


   
   A few months ago there was a thread about leaf-cutter ants. 
Here's 
   something new about them from the Yucatan . Such ants can 
usually be 
   seen busily at work in Bustamante Canyon . I don't recall 
seeing them

RE: Fw: [Texascavers] leaf-cutter ants in Mexico

2010-02-01 Thread Cook, Brett
I'm with you. They stop being fascinating when they strip plants that are 
important to you. 

The only thing I've found that stops them is Tanglefoot. They check it out, 
find out it's too gooey to cross, and move on. It works, but it takes a lot of 
time to apply and re-apply to each plant.

I finally decided that if they're going to attack my garden, I'm going after 
theirs.

I've been looking for a good fungicide I can spray my plants or the ground with 
that will deter them, but no luck so far. Bait doesn't work, and poison on the 
mound only makes them look for an alternate route. I even tried a systemic on 
my plants called Imidacloprid. It kept the aphids away, but not the 
leaf-cutters.

This year, I'm going to try fertilizing with guano from an insectivore. Bat 
guano is supposed to have anti-fungal properties, and being an insectivore 
means there's a possibility of spreading an insect-specific pathogen that will 
affect the ants.

I've read that some folks have had success with collecting the wastes from the 
ants themselves and scattering that around their plants. I have yet to find an 
ant waste pile.

 

Brett



From: JSSchneider1 [mailto:jsschneid...@peoplepc.com] 
Sent: Tuesday, January 19, 2010 4:36 PM
To: Texas Cavers
Subject: Fw: Fw: [Texascavers] leaf-cutter ants in Mexico

 

 

I used to think they were fascinating until they began to cart off most of  my 
garden seedlings. A  M's website has some useful information on Texas 
Leafcutters. The only thing I have found that works is to follow their trail 
back to the mound, and either use Amdro Ant Block ( not just regular Amdro), or 
Viper ( permethrin- which is a synthetic pyrethrin). Viper works right away, 
and Amdro Ant Block takes a couple of weeks to work.You have to keep at it.  
The label says you can dust your plants with Viper, but I don't put anything 
directly on my vegetable garden plants, just on the ant mound. 

--- On Mon, 1/18/10, JSSchneider1 jsschneid...@peoplepc.com wrote:

 

- Original Message - 

From: Gill Edigar 

To: Denise P 

Cc: TexasCavers 

Sent: Monday, January 18, 2010 10:31 AM

Subject: Re: [Texascavers] leaf-cutter ants in Mexico

 

I am pretty sure--like 99%--that we had them in South Texas when I was a kid. I 
remember well watching them but don't recall a specific location--meaning, 
probably, that they were a common enough occurrence that they didn't invoke any 
great interest worthy of remembering.  

 

There were some ants in South Texas that made underground nests which humped up 
above ground (sorta like fireant mounds except 10x bigger) and which created 
large subsurface voids. On more than one occasion we were unlucky enough to 
drive over these mounds hidden by tall pasture grass and the front tire of the 
pick-up fell into them and the truck got stuck and we had to get towed out. It 
is my recollection that these were a type of leaf-cutter ant which, by the way, 
don't (or didn't) sting. Those events DID create specific memories. 

--Ediger

 

 

 

On Mon, Jan 18, 2010 at 9:29 AM, Denise P pepabe...@hotmail.com wrote:

I have heard a number of gardeners in the central Texas area complaining about 
them decimating their crops. I hear they are very hard to control.
 
-d
 
 From: bmixon...@austin.rr.com
 To: texascavers@texascavers.com
 Date: Mon, 18 Jan 2010 09:23:50 -0600
 Subject: [Texascavers] leaf-cutter ants in Mexico 


 
 A few months ago there was a thread about leaf-cutter ants. Here's 
 something new about them from the Yucatan. Such ants can usually be 
 seen busily at work in Bustamante Canyon. I don't recall seeing them 
 in Texas, but I wouldn't be surprised if some were found in the 
 valley. -- Mixon
 
  JIM CONRAD'S NATURALIST NEWSLETTER
  Issued from Hacienda Chichén beside the Maya ruin of
  Chichén Itzá in the central Yucatán, MÉXICO
 
  January 17, 2010
 **
  RETURN OF THE LEAFCUTTER ANTS
  The owners of Hacienda Chichen are justly proud of their pro-
  environment policies, which includes using as few
  chemicals as possible. The other day a worker not yet
  clear about the policy poisoned a large leafcutter
  nest because the ants had begun defoliating a Tropical
  Almond tree in the parking lot. As soon as we saw what
  had been done we made every effort to scoop all the
  poison and contaminated soil into plastic bags and
  dispose of the bags properly.
 
  Before the poisoning attempt, every day I'd seen the
  ants carrying bits of herbage back to their nest.
  However, after the poisoning for two weeks not a
  single ant was seen at the nest. I felt sure that the
  whole colony had been wiped out. It had been a colony
  as large as the one we saw last year at Yokdzenot. You
  still can read about that big nest and see it at
  http://www.backyardnature.net/yucatan/ant-lfcu.htm
 
  Wednesday morning, there were ants again. Moreover,
  not only had the colony resumed its earlier foraging
  habits, but also

Fw: Fw: [Texascavers] leaf-cutter ants in Mexico

2010-01-23 Thread JSSchneider1

  I've tried diatomaceous earth - sprinkling it around seedlings to keep 
the leafcutters out. It does work somewhat, but when you water the plants or if 
it rains, it has to be renewed, and it really didn't work that well for me.  
I've had leafcutters destroy seedlings that were circled with diatomaceous 
earth. 


  Leafcutter ants leave a chemical trail to the plants they are attacking. 
Orange oil has a strong odor  that disrupts the leaf cutter's chemical trail. 
You buy it in the  concentrated form and dilute it, and spray it on the trail. 
It works fairly well,  but has to be reapplied frequently, and rain will wash 
it away. I imagine cinnamon works the same way, by disrupting the ant's 
chemical trail.  Orange oil concentrate might be cheaper than cinnamon. 


  One thing that might protect  small trees is Tanglefoot and tree tape. 
You wrap the trunk with paper tree tape, and smear the extremely sticky 
Tanglefoot on it. Ants are trapped in the sticky residue. 


  You can buy diatomaceous earth for gardens, orange oil concentrate , and 
tanglefoot in Austin at The Natural Garder, 


  The problem is that leafcutter ant colonies can be  huge, covering an 
acre, and can have millions of ants, especially if you have sandy soil as we do 
in the Sand Hills. The tunnels are 15-20 feet deep underground, and there are 
many side entrances.  If you disrupt one path to your plants, leafcutters  will 
just find another. In hot weather, they work  at night while you are sleeping, 
and the next morning your seedlings will be stripped of all their leaves. They 
even destroyed my onions and habanero peppers. Leafcutters don't eat the 
plants, they use them to grow a fungus underground, so the usual baits don't 
have any effect on them.  I have found that following  the trails to the mounds 
and treating the mounds with permethrin works. Permethrin  is a synthetic form 
of pyrethrin, found in chrysanthemum flowers. It  attacks the ant's respiratory 
system. It's not long lasting, and the directions say you can even use it on 
your plants, but I only use it on the mounds. We use the brand Viper which 
Callahan's Feed Store carries.   I've also tried  Amdro Ant Block, ( also at 
Callahan's ) which you apply to the mounds, and over time is supposed to 
eliminate them. Since last October,  I haven't seen any leafcutters active in 
the old mounds, or in my garden. We still have lots of them active in other 
parts of our land. 


  I've  read that Jack Bean leaves (Canavalia ensiformis) sprinkled on 
leafcutter mounds will kill the leafcutter ant's fungi. I have some seeds and 
may try planting some Jack Beans this year.  Of course the leafcutters have to 
haul the Jack Bean leaves into their mounds for this to work. I've also read 
that Sesame planted near the mounds works as well. I ordered Jack Bean seeds 
from www. Banana-tree.com


  I hope someday, AM will find a Phorid fly parasite for Texas Leafcutter 
ants, as they have done for Fire Ants. 



From: JSSchneider1 jsschneid...@peoplepc.com
Subject: Fw: [Texascavers] leaf-cutter ants in Mexico
To: Edie Ymail Clark ediecl...@ymail.com
Date: Wednesday, January 20, 2010, 9:54 PM


- Original Message - 
From: Louise Power 
To: jsschneid...@peoplepc.com 
Sent: Tuesday, January 19, 2010 7:18 PM
Subject: RE: [Texascavers] leaf-cutter ants in Mexico


If you just want to make them go away and not kill them, sprinkle about 
a 2 or 3-inch strip of diatomaceous earth around the perimeter of your garden. 
If they're like other ants, they won't cross it. For them, it's like us trying 
to cross a large section of blades-up razorblades. If they do cross it, it 
abrades the carapace and they bleed to death. Generally, once they've seen it 
and a couple have tried it, they just go bother someone else. Best of all, it's 
non-toxic and safe for people and other living things. See the following 
website:
 
http://www.dirtworks.net/Diatomaceous-Earth.html 
 
Also, try sprinkling cinnamon around smaller areas you want them to 
stay out of. I don't know if it's the smell or the consistency. All I know is 
that if I see them coming in at the window, I sprinkle some on the sill and an 
hour later, they're gone and don't come back. It's sort of expensive; that's 
why I only use it on my windowsills or in other small areas.
 
NOTE: Do not use the kind of diatomaceous earth used in pool filters. 
It's heated and treated and doesn't work. I think it's also toxic.
 
Louise
 


From: jsschneid...@peoplepc.com
To: texascavers@texascavers.com
Date: Tue, 19 Jan 2010 17:36:06 -0600
Subject: Fw: Fw: [Texascavers] leaf-cutter ants in Mexico




  I used to think they were fascinating until

Fw: Fw: [Texascavers] leaf-cutter ants in Mexico

2010-01-19 Thread JSSchneider1


  I used to think they were fascinating until they began to cart off most 
of  my garden seedlings. A  M's website has some useful information on Texas 
Leafcutters. The only thing I have found that works is to follow their trail 
back to the mound, and either use Amdro Ant Block ( not just regular Amdro), or 
Viper ( permethrin- which is a synthetic pyrethrin). Viper works right away, 
and Amdro Ant Block takes a couple of weeks to work.You have to keep at it.  
The label says you can dust your plants with Viper, but I don't put anything 
directly on my vegetable garden plants, just on the ant mound. 

  --- On Mon, 1/18/10, JSSchneider1 jsschneid...@peoplepc.com wrote:


- Original Message - 
From: Gill Edigar 
To: Denise P 
Cc: TexasCavers 
Sent: Monday, January 18, 2010 10:31 AM
Subject: Re: [Texascavers] leaf-cutter ants in Mexico


I am pretty sure--like 99%--that we had them in South Texas when I was 
a kid. I remember well watching them but don't recall a specific 
location--meaning, probably, that they were a common enough occurrence that 
they didn't invoke any great interest worthy of remembering.  


There were some ants in South Texas that made underground nests which 
humped up above ground (sorta like fireant mounds except 10x bigger) and which 
created large subsurface voids. On more than one occasion we were unlucky 
enough to drive over these mounds hidden by tall pasture grass and the front 
tire of the pick-up fell into them and the truck got stuck and we had to get 
towed out. It is my recollection that these were a type of leaf-cutter ant 
which, by the way, don't (or didn't) sting. Those events DID create specific 
memories. 
--Ediger






On Mon, Jan 18, 2010 at 9:29 AM, Denise P pepabe...@hotmail.com wrote:

  I have heard a number of gardeners in the central Texas area 
complaining about them decimating their crops. I hear they are very hard to 
control.
   
  -d
   
   From: bmixon...@austin.rr.com
   To: texascavers@texascavers.com
   Date: Mon, 18 Jan 2010 09:23:50 -0600
   Subject: [Texascavers] leaf-cutter ants in Mexico 

   
   A few months ago there was a thread about leaf-cutter ants. Here's 
   something new about them from the Yucatan. Such ants can usually be 
   seen busily at work in Bustamante Canyon. I don't recall seeing 
them 
   in Texas, but I wouldn't be surprised if some were found in the 
   valley. -- Mixon
   
JIM CONRAD’S NATURALIST NEWSLETTER
Issued from Hacienda Chichén beside the Maya ruin of
Chichén Itzá in the central Yucatán, MÉXICO
   
January 17, 2010
   **
RETURN OF THE LEAFCUTTER ANTS
The owners of Hacienda Chichen are justly proud of their pro-
environment policies, which includes using as few
chemicals as possible. The other day a worker not yet
clear about the policy poisoned a large leafcutter
nest because the ants had begun defoliating a Tropical
Almond tree in the parking lot. As soon as we saw what
had been done we made every effort to scoop all the
poison and contaminated soil into plastic bags and
dispose of the bags properly.
   
Before the poisoning attempt, every day I'd seen the
ants carrying bits of herbage back to their nest.
However, after the poisoning for two weeks not a
single ant was seen at the nest. I felt sure that the
whole colony had been wiped out. It had been a colony
as large as the one we saw last year at Yokdzenot. You
still can read about that big nest and see it at
http://www.backyardnature.net/yucatan/ant-lfcu.htm
   
Wednesday morning, there were ants again. Moreover,
not only had the colony resumed its earlier foraging
habits, but also they seemed to have redoubled their
efforts, for now many more ants than before were
carrying cut-out leaf sections and they were moving
faster. Anthropomorphically, they looked exactly as if
they were trying to make up for lost time! You can see
several on the trunk of a Gumbo-Limbo -- which after
two days they'd defoliated nearly completely -- at
http://www.backyardnature.net/n/10/100117lc.jpg
   
That picture was made about 30 yards or meters from
their nest and every inch of the trail between there
and the nest was just as cluttered and bustling with
leaf-carrying ants as in the picture.
   
Of course I'm relieved that the nest seems to have
survived

[Texascavers] leaf-cutter ants in Mexico

2010-01-18 Thread Mixon Bill
A few months ago there was a thread about leaf-cutter ants. Here's  
something new about them from the Yucatan. Such ants can usually be  
seen busily at work in Bustamante Canyon. I don't recall seeing them  
in Texas, but I wouldn't be surprised if some were found in the  
valley. -- Mixon



JIM CONRAD’S NATURALIST NEWSLETTER
Issued from Hacienda Chichén beside the Maya ruin of
Chichén Itzá in the central Yucatán, MÉXICO

January 17, 2010

**

RETURN OF THE LEAFCUTTER ANTS
The owners of Hacienda Chichen are justly proud of their pro-
environment policies, which includes using as few
chemicals as possible. The other day a worker not yet
clear about the policy poisoned a large leafcutter
nest because the ants had begun defoliating a Tropical
Almond tree in the parking lot. As soon as we saw what
had been done we made every effort to scoop all the
poison and contaminated soil into plastic bags and
dispose of the bags properly.

Before the poisoning attempt, every day I'd seen the
ants carrying bits of herbage back to their nest.
However, after the poisoning for two weeks not a
single ant was seen at the nest. I felt sure that the
whole colony had been wiped out. It had been a colony
as large as the one we saw last year at Yokdzenot. You
still can read about that big nest and see it at
http://www.backyardnature.net/yucatan/ant-lfcu.htm

Wednesday morning, there were ants again. Moreover,
not only had the colony resumed its earlier foraging
habits, but also they seemed to have redoubled their
efforts, for now many more ants than before were
carrying cut-out leaf sections and they were moving
faster. Anthropomorphically, they looked exactly as if
they were trying to make up for lost time! You can see
several on the trunk of a Gumbo-Limbo -- which after
two days they'd defoliated nearly completely -- at
http://www.backyardnature.net/n/10/100117lc.jpg

That picture was made about 30 yards or meters from
their nest and every inch of the trail between there
and the nest was just as cluttered and bustling with
leaf-carrying ants as in the picture.

Of course I'm relieved that the nest seems to have
survived. Sometimes visitors say that for them
watching the ants is as fascinating as visiting the
ruins! Also the experience has reminded me how like a
single living organism an ant colony is. The colony
became sick, stopped functioning, but then one day
finally burst from home looking as healthy as ever,
trying to make up for lost time. In fact, they're out
there as I type this, a long, long line of them,
gradually defoliating a hibiscus.

***

Best wishes to all Newsletter Readers.

Jim

Subscribe AND unsubscribe to this Newsletter at
http://www.backyardnature.net/news/natnat.php



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RE: [Texascavers] leaf-cutter ants in Mexico

2010-01-18 Thread Denise P

I have heard a number of gardeners in the central Texas area complaining about 
them decimating their crops. I hear they are very hard to control.

 

-d
 
 From: bmixon...@austin.rr.com
 To: texascavers@texascavers.com
 Date: Mon, 18 Jan 2010 09:23:50 -0600
 Subject: [Texascavers] leaf-cutter ants in Mexico
 
 A few months ago there was a thread about leaf-cutter ants. Here's 
 something new about them from the Yucatan. Such ants can usually be 
 seen busily at work in Bustamante Canyon. I don't recall seeing them 
 in Texas, but I wouldn't be surprised if some were found in the 
 valley. -- Mixon
 
  JIM CONRAD’S NATURALIST NEWSLETTER
  Issued from Hacienda Chichén beside the Maya ruin of
  Chichén Itzá in the central Yucatán, MÉXICO
 
  January 17, 2010
 **
  RETURN OF THE LEAFCUTTER ANTS
  The owners of Hacienda Chichen are justly proud of their pro-
  environment policies, which includes using as few
  chemicals as possible. The other day a worker not yet
  clear about the policy poisoned a large leafcutter
  nest because the ants had begun defoliating a Tropical
  Almond tree in the parking lot. As soon as we saw what
  had been done we made every effort to scoop all the
  poison and contaminated soil into plastic bags and
  dispose of the bags properly.
 
  Before the poisoning attempt, every day I'd seen the
  ants carrying bits of herbage back to their nest.
  However, after the poisoning for two weeks not a
  single ant was seen at the nest. I felt sure that the
  whole colony had been wiped out. It had been a colony
  as large as the one we saw last year at Yokdzenot. You
  still can read about that big nest and see it at
  http://www.backyardnature.net/yucatan/ant-lfcu.htm
 
  Wednesday morning, there were ants again. Moreover,
  not only had the colony resumed its earlier foraging
  habits, but also they seemed to have redoubled their
  efforts, for now many more ants than before were
  carrying cut-out leaf sections and they were moving
  faster. Anthropomorphically, they looked exactly as if
  they were trying to make up for lost time! You can see
  several on the trunk of a Gumbo-Limbo -- which after
  two days they'd defoliated nearly completely -- at
  http://www.backyardnature.net/n/10/100117lc.jpg
 
  That picture was made about 30 yards or meters from
  their nest and every inch of the trail between there
  and the nest was just as cluttered and bustling with
  leaf-carrying ants as in the picture.
 
  Of course I'm relieved that the nest seems to have
  survived. Sometimes visitors say that for them
  watching the ants is as fascinating as visiting the
  ruins! Also the experience has reminded me how like a
  single living organism an ant colony is. The colony
  became sick, stopped functioning, but then one day
  finally burst from home looking as healthy as ever,
  trying to make up for lost time. In fact, they're out
  there as I type this, a long, long line of them,
  gradually defoliating a hibiscus.
 ***
  Best wishes to all Newsletter Readers.
 
  Jim
 
  Subscribe AND unsubscribe to this Newsletter at
  http://www.backyardnature.net/news/natnat.php
 
 
 A bore is a person who talks when you wish him to listen.
 
 You may reply to the address this message
 came from, but for long-term use, save:
 Personal: bmi...@alumni.uchicago.edu
 AMCS: edi...@amcs-pubs.org or sa...@amcs-pubs.org
 
 
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Re: [Texascavers] leaf-cutter ants in Mexico

2010-01-18 Thread Gill Edigar
I am pretty sure--like 99%--that we had them in South Texas when I was a
kid. I remember well watching them but don't recall a specific
location--meaning, probably, that they were a common enough occurrence that
they didn't invoke any great interest worthy of remembering.

There were some ants in South Texas that made underground nests which humped
up above ground (sorta like fireant mounds except 10x bigger) and which
created large subsurface voids. On more than one occasion we were unlucky
enough to drive over these mounds hidden by tall pasture grass and the front
tire of the pick-up fell into them and the truck got stuck and we had to get
towed out. It is my recollection that these were a type of leaf-cutter ant
which, by the way, don't (or didn't) sting. Those events DID create specific
memories.
--Ediger



On Mon, Jan 18, 2010 at 9:29 AM, Denise P pepabe...@hotmail.com wrote:

  I have heard a number of gardeners in the central Texas area complaining
 about them decimating their crops. I hear they are very hard to control.

 -d

  From: bmixon...@austin.rr.com
  To: texascavers@texascavers.com
  Date: Mon, 18 Jan 2010 09:23:50 -0600
  Subject: [Texascavers] leaf-cutter ants in Mexico

 
  A few months ago there was a thread about leaf-cutter ants. Here's
  something new about them from the Yucatan. Such ants can usually be
  seen busily at work in Bustamante Canyon. I don't recall seeing them
  in Texas, but I wouldn't be surprised if some were found in the
  valley. -- Mixon
 
   JIM CONRAD’S NATURALIST NEWSLETTER
   Issued from Hacienda Chichén beside the Maya ruin of
   Chichén Itzá in the central Yucatán, MÉXICO
  
   January 17, 2010
  **
   RETURN OF THE LEAFCUTTER ANTS
   The owners of Hacienda Chichen are justly proud of their pro-
   environment policies, which includes using as few
   chemicals as possible. The other day a worker not yet
   clear about the policy poisoned a large leafcutter
   nest because the ants had begun defoliating a Tropical
   Almond tree in the parking lot. As soon as we saw what
   had been done we made every effort to scoop all the
   poison and contaminated soil into plastic bags and
   dispose of the bags properly.
  
   Before the poisoning attempt, every day I'd seen the
   ants carrying bits of herbage back to their nest.
   However, after the poisoning for two weeks not a
   single ant was seen at the nest. I felt sure that the
   whole colony had been wiped out. It had been a colony
   as large as the one we saw last year at Yokdzenot. You
   still can read about that big nest and see it at
   http://www.backyardnature.net/yucatan/ant-lfcu.htm
  
   Wednesday morning, there were ants again. Moreover,
   not only had the colony resumed its earlier foraging
   habits, but also they seemed to have redoubled their
   efforts, for now many more ants than before were
   carrying cut-out leaf sections and they were moving
   faster. Anthropomorphically, they looked exactly as if
   they were trying to make up for lost time! You can see
   several on the trunk of a Gumbo-Limbo -- which after
   two days they'd defoliated nearly completely -- at
   http://www.backyardnature.net/n/10/100117lc.jpg
  
   That picture was made about 30 yards or meters from
   their nest and every inch of the trail between there
   and the nest was just as cluttered and bustling with
   leaf-carrying ants as in the picture.
  
   Of course I'm relieved that the nest seems to have
   survived. Sometimes visitors say that for them
   watching the ants is as fascinating as visiting the
   ruins! Also the experience has reminded me how like a
   single living organism an ant colony is. The colony
   became sick, stopped functioning, but then one day
   finally burst from home looking as healthy as ever,
   trying to make up for lost time. In fact, they're out
   there as I type this, a long, long line of them,
   gradually defoliating a hibiscus.
  ***
   Best wishes to all Newsletter Readers.
  
   Jim
  
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Re: [Texascavers] leaf-cutter ants in Mexico

2010-01-18 Thread Nancy Weaver


There were some ants in South Texas that made underground nests 
which humped up above ground (sorta like fireant mounds except 10x 
bigger) and which created large subsurface voids. On more than one 
occasion we were unlucky enough to drive over these mounds hidden by 
tall pasture grass and the front tire of the pick-up fell into them 
and the truck got stuck and we had to get towed out. It is my 
recollection that these were a type of leaf-cutter ant which, by the 
way, don't (or didn't) sting. Those events DID create specific 
memories.

--Ediger


sounds a lot like the termite mounds of madagascar.

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