Re: [gardeners] what tree?

Dan Dixon (
Tue, 09 Jul 2002 09:42:45 -0500

Margaret Lauterbach at wrote:

> In Michael Pollan's "Botany of Desire," he writes "A molecule present in
> the sap of a certain tree prevents caterpillars that sample its leaves from
> ever growing into butterflies."  What tree is that?  Sounds like the
> precursor to Terminator technology.  Margaret L

Maybe it's the neem tree, which contains azadirachtin. I'd liken it more to
a natural insect growth regulator than a genetic "terminator" effect though.
Here's some info on azadirachtin:

Dan Dixon