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<pre>It is not ordinary chalk but the packet does not mention the
ingredients. So it would be best to get it analysed by some competent
chemist. The chinese are not known for giving out information on such
things.
Cheers
Andrew Brown
Mt Barker
South Australia

andrew.petherbridge@health.gov.au wrote:

>
> Hi Andrew,
>
> Chalk - this is a really interesting idea to deal with ants.
>
> Chinese ant chalk? If you haven't done so - suggest it might be worth
> confirming what is in this chalk before you use too much of it?
>
> There is a Chinese ant chalk around that contains neurotoxins.
>
> Is this China chalk just your normal 'teachers' chalk?
>
> This link below might be relevant:
>
>
> (see http://www.cdpr.ca.gov/docs/archives...1998/chalk.htm).
> <http://www.cdpr.ca.gov/docs/archives.../chalk.htm%29.>
>
>
> Cheers
>
>
> Andrew
>
>
> (Olive grove in Mt Compass, South Australia)
>
>
>
>
>
>
>
>
>
>
>
> |---------+------------------------------->
> | | "Mike Wilson" |
> | | <mike.wilson@hunterl|
> | | ink.net.au> |
> | | Sent by: |
> | | OliveOil@yahoogroups|
> | | .com |
> | | |
> | | |
> | | 18/10/2005 08:12 PM |
> | | Please respond to |
> | | OliveOil |
> | | |
> |---------+------------------------------->
>
>
>-------------------------------------------------------------------------------\
-----------------------------------------------|
>
> |
> |
> | To:
> <OliveOil@yahoogroups.com>
> |
> |
> cc:
> |
> | Subject: Re: [OliveOil]
> Ants
> |
>
>
>-------------------------------------------------------------------------------\
-----------------------------------------------|
>
>
>
>
>
> > We are suffering badly from black sooty mould. I know this subject has
> > been discussed before but this may be a new slant on the problem.
> >
> > I have a chalk that was obtained in China for repelling insects. It
> > works great on ants. Initially they don't seem to take much notice but
> > after about 1/2 an hour there is no sign of ants.
> > I tried it on the trunk of a few trees where ants were scurrying up the
> > tree. I put a line of this chalk around the trunk. A little later no
> > sign of ants.
>
> Interesting results. I have had great success using pyrethrum based sprays
> for knocking down ants, and although I cannot see why simple calcium
> carbonate (chalk) would have any effect on ants, some for of chalk that
> contained pyrethrum might be effective. I suspect that Andrew hasn't had
> the
> Chinese chalk analysed (!) for exactly what is the effecive
> ingredient, but
> if it stops the little bu**ers from spreading sooty mould everywhere, I'm
> in!
>
>
> > I would like to develop a spray of some sort to spread the chalk onto a
> > number of trrees to see if it continues to repel the little b"s.
> >
> > Anyone got any ideas. The medium for the liquid would have to be
> > something which did not cover the chalk with a coating as that might
> > smother the effect. But it needs to be something which would stick the
> > chalk to the trunk. If this works it could be a boon to the industry.
>
> Some form of light oil is most likely. The oil should carry the chalk, but
> evaporate in the heat? I knew there had to be a constructive use for
> Canola
> Oil!
> {now, that's not nice, Mike!!}
> Regards,
>
> Mike Wilson
> Hunter Valley.
>
>
>
>
>
>
>
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</pre>
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