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Re: Tomato Horn Worn

Chris Andersen wrote:
> 
> > >How does one combat the green tomato horn worn, or polyphemous.
>
> I would like to try a biological control if one exists!
> 
Bacillus thuringiensis is a microbial biological control.    Var.
kurstaki is pretty broad spectrum and kills various common pest
caterpillars including hornworms.  After ingesting Bt, worms will stop
feeding but will live for a few more days before dropping to the
ground.  I haven't used it for quite a few years because birds are
taking care of the hornworm problem but as I recall it worked pretty
well.

Olin Miller
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