[NAFEX] fungicide or antibacterial? (fireblight)

Thomas Olenio tolenio at sentex.net
Wed May 18 15:58:15 EDT 2005


Copper is not healthy for humans or fish either.  Put a penny in a fish  
tank and see what happens.  Over time the fish die.  Copper is also used  
to deter root penetration, as they do not like it.

I asked my brother once, when I was young, why auto exhaust was not made  
of copper (would not rust out).  He told me it gave off poison gas when  

As far as I know, copper is not good for many living things.


On Wed, 18 May 2005 12:41:46 -0700, Stephen Sadler <Docshiva at Docshiva.org>  

> You wrote: "Fungicides kill fungi, not bacteria."
> Well, depends on the fungicide.  Say you're a hunter with a rabbit gun  
> and
> an elephant gun.  Would you say "elephant guns kill elephants, not  
> rabbits"?
> I think a gun that would bring down an elephant would pretty much take  
> care
> of a wee rabbit, now, wouldn't it?  There are many bacteria that don't  
> like
> copper solutions any more than fungi do.  Copper hydroxide is labeled for
> many fungi, and bacteria as well.
> Cheers,
> Stephen Sadler, Ph.D.
> USDA 9, AHS heat zone 8,
> Sacramento CA - Mediterranean climate
> -----Original Message-----
> From: nafex-bounces at lists.ibiblio.org
> [mailto:nafex-bounces at lists.ibiblio.org] On Behalf Of tanis cuff
> Sent: Wednesday, May 18, 2005 9:00 AM
> To: nafex at lists.ibiblio.org
> Subject: [NAFEX] fungicide or antibacterial? (fireblight)
> Reading the paragraph below reminded me of a comment in the current
> 'Pomona'.  The fireblight article recommends spraying copper fungicide.
> Fireblight is a bacterium.  Fungicides kill fungi, not bacteria.  Is the
> fungicide spray intended to promote over-all health of orchard?
> Another question which the fireblight article prompts me to ask is about  
> the
> rubbing alcohol.  I was taught you need to soak anything in rubbing  
> alcohol
> for half-an-hour, to sterilize.  Does anyone know if this is right?
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