North American Fruit Explorers mailing list at ibiblio

[Kevin Moore <aleguy33@yahoo.com>]

Maybe it's not Bt. I'm at a loss to explain it any other way. The tent caterpillers that plagued me for years disappeared completely (good riddance) an the only ones I see now are the yellow swallowtail larvae. They are always dead and I don't put anything even remotely toxic near the garden. It all happened after I sprayed Bt. I found the can in the shed and it clearly says "contains live bacteria." 
Regardless I don't think the ones in the can were active or living any longer, so i felt no qualms about discarding it in a landfill.

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From: Mathew Waehner <waehner@gmail.com>
To: North American Fruit Explorers <nafex@lists.ibiblio.org>
Sent: Tuesday, June 23, 2009 1:53:16 PM
Subject: Re: [NAFEX] Don't use Bt

If the Bt bacteria has really spread all over your garden, why is it so much more sucessful than other bacteria?  What does the Bt eat, and why don't native bacteria compete for that food source?

 

I tend to think that if someone could produce a live bacteria product that would eradicate caterpillars for years, the world would (unwisely) beat a path to their door.

 

I used it for cabbage moths last year, and they came back every time it rained.  I also use the mosquito toxic bt in my rain barrels, and it only lasts a week. ( I use the small pellets, not the dunks) 

 

 

On Sat, Jun 20, 2009 at 4:19 PM, Kevin Moore <aleguy33@yahoo.com> wrote:

Not really sure. there aren't many around these days. they always turn up dead. They used to be in everything before I sprayed the Bt.

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From: "abb7@Lehigh.EDU" <abb7@Lehigh.EDU>
To: nafex@lists.ibiblio.org
Sent: Friday, June 19, 2009 8:56:56 PM

Subject: Re: [NAFEX] Don't use Bt

> Date: Fri, 19 Jun 2009 08:15:38 -0700 (PDT)
> From: Kevin Moore <aleguy33@yahoo.com>
> Subject: Re: [NAFEX] Don't use Bt
> To: North American Fruit Explorers <nafex@lists.ibiblio.org>
> Message-ID: <847106.25600.qm@web46004.mail.sp1.yahoo.com" target="_blank" href="mailto:847106.25600.qm@web46004.mail.sp1.yahoo.com">847106.25600.qm@web46004.mail.sp1.yahoo.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Too late. I sprayed (dusted) my garden with Bt three years ago and 
> it appears to >have taken hold. It is still killing caterpillars in 
> my yard and garden, so I >know for a fact it was a living organism. 
> It is well established now, so there is >little I can do about it. I 
> agree that Bt is not a good idea, generally.

How can you tell that the caterpillars are dying from Bt?

Alex

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