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<pre>Hello all,
I wonder if any growers are experiencung problems with kangaroos. We
are having several trees knocked over a week. The 25mm timber stakes
are snapped off at the ground. We restake and tape but most trees are
dead within 2 weeks - our trees are 15 months old.

I would be interested to hear if this is a widespread problem and how
others have tackled it.

Paul Moran
Narranghi.
Braidwood
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<pre>> Hello all,
> I wonder if any growers are experiencung problems with kangaroos. We
> are having several trees knocked over a week. The 25mm timber stakes
> are snapped off at the ground. We restake and tape but most trees are
> dead within 2 weeks - our trees are 15 months old.
>
> I would be interested to hear if this is a widespread problem and how
> others have tackled it.
>
> Paul Moran

Dear Paul,

Yes, a fairly constant problem for me. I originally used the 25mm tomato
stakes, but after I'd had enough of them snapped I went up to a 38mm square
hardwood stake (available from my local timber mill) at 1.5m in length. This
was as big a stake as I could fit comfortably inside my post banger. These
seem to be a much better bet, as the roos tend to bounce of them, rather
than knock them over. I'm talking about 2m high trees (18 months old) in a
clay loam soil, so once the posts are rammed in a good way they take a lot
of shifting. You will need to get a point put on the stakes! They cost me
around $1.60 each. The other option is steel star pickets, but at $5 or so
each its getting a bit expensive.

How big are your trees?

Regards,

Mike Wilson.
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<pre>--- In OliveOil@y..., "narranghi1" <paulmm@i...> wrote:
> Hello all,
> I wonder if any growers are experiencung problems with kangaroos.
We
> Paul Moran

Paul,

not really having too much trouble with the 'roos knowking over the
trees the wind does that for them. Feed is getting tight so I'm
guess I'll be having more and more of them in the grove.

I too use 38mm square stakes (well actually I think they're nominally
40mm square, dressed and rounded 2.1m tall - about $1.80 each
delivered, price depends heavily on the quantity ordered, but that
one was for a small batch or 100). I bang them in with a ~1m long
section of 2in water pipe with a cap on the end but a star picket
banger would do just as well.

I also put a heavy wire mesh around them for the first two years to
keep any animals from nibbling the base.

Prune heavily if your tree is knocked to the ground - as much as you
dare - but with the frequency of your knock downs does mean you can
experiment. My "survivors" still look pretty average after meny
months.

Jon, Wallan, Victoria.
</pre>
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<pre>I think that if kangaroos are causing such a problem then have them culled.
I do not agree with tying a tree with a hugh stake.
This is just as bad for the tree as ill managed irrigation.
Both treatments tend to produce weak trees --- ie take away both or either
one of the props and the tree will fall over.
----- Original Message -----
From: Mike Wilson <mike.wilson@...>
To: <OliveOil@yahoogroups.com>
Sent: Wednesday, June 26, 2002 8:27 AM
Subject: Re: [OliveOil] Kangaroos knocking over trees


>
> > Hello all,
> > I wonder if any growers are experiencung problems with kangaroos. We
> > are having several trees knocked over a week. The 25mm timber stakes
> > are snapped off at the ground. We restake and tape but most trees are
> > dead within 2 weeks - our trees are 15 months old.
> >
> > I would be interested to hear if this is a widespread problem and how
> > others have tackled it.
> >
> > Paul Moran
>
> Dear Paul,
>
> Yes, a fairly constant problem for me. I originally used the 25mm tomato
> stakes, but after I'd had enough of them snapped I went up to a 38mm
square
> hardwood stake (available from my local timber mill) at 1.5m in length.
This
> was as big a stake as I could fit comfortably inside my post banger. These
> seem to be a much better bet, as the roos tend to bounce of them, rather
> than knock them over. I'm talking about 2m high trees (18 months old) in a
> clay loam soil, so once the posts are rammed in a good way they take a lot
> of shifting. You will need to get a point put on the stakes! They cost me
> around $1.60 each. The other option is steel star pickets, but at $5 or so
> each its getting a bit expensive.
>
> How big are your trees?
>
> Regards,
>
> Mike Wilson.
>
>
>
>
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</pre>
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<pre>Hi All,

To get around the roo problem in my grove I fenced quite high and low around
the whole lot. Speficially I have had success with 7 line ringlock, a low
barb and a high barb. Roos, while able to jump this height if they really
try, dont go over it - they seem to prefer to go around. The low barb is a
must as roos push under fences as a rule. This barb should be virtually be
on the ground (1 inch or so off the ground) and one have about a 1-2 inch
gap between the first line of ringlock. Anywhere where the barb comes more
than say 3" off the ground due to a hole or whatever I put a log or
something there to stop the buggers.

Others have had success with a low and medium hotwire (eleccy fence) in
keeping roos at bay.

Good luck!

Todd.

nucontrol@...
-----Original Message-----
From: jon_p_mcdowell [mailto:jmcdowel@...]
Sent: 27 Jun, 2002 06:10
To: OliveOil@yahoogroups.com
Subject: [OliveOil] Re: Kangaroos knocking over trees


--- In OliveOil@y..., "narranghi1" <paulmm@i...> wrote:
> Hello all,
> I wonder if any growers are experiencung problems with kangaroos.
We
> Paul Moran

Paul,

not really having too much trouble with the 'roos knowking over the
trees the wind does that for them. Feed is getting tight so I'm
guess I'll be having more and more of them in the grove.

I too use 38mm square stakes (well actually I think they're nominally
40mm square, dressed and rounded 2.1m tall - about $1.80 each
delivered, price depends heavily on the quantity ordered, but that
one was for a small batch or 100). I bang them in with a ~1m long
section of 2in water pipe with a cap on the end but a star picket
banger would do just as well.

I also put a heavy wire mesh around them for the first two years to
keep any animals from nibbling the base.

Prune heavily if your tree is knocked to the ground - as much as you
dare - but with the frequency of your knock downs does mean you can
experiment. My "survivors" still look pretty average after meny
months.

Jon, Wallan, Victoria.


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Subscribe: OliveOil-subscribe@yahoogroups.com
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</pre>
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<pre>> I think that if kangaroos are causing such a problem then have them
culled.
> I do not agree with tying a tree with a hugh stake.
> This is just as bad for the tree as ill managed irrigation.
> Both treatments tend to produce weak trees --- ie take away both or
either
> one of the props and the tree will fall over.

Culling the kangaroos is obviously one quite effective way of removing the
problem, and I understand that if take out the dominant male the rest soon
get the hint.

As for the staking, I agree that long term staking is detrimental to the
tree long term. I have the view that once the trunk is twice as thick as the
stake, then the tree is holding up the stake, so it might as well come out.

For young trees with a lot of foliage and a spindly trunk, staking against
roos and gales is a useful stop-gap, but 3 or 4 year old trees shouldn't
need staking, as Christine says.

Regards,

Mike Wilson.
</pre>
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