frass expulsion

[gwang]

Monarchs are toxic, so would it not make sense for the eggs, and hence
newly emerged larvae, to be just as toxic, if not more?

Peace,
Xi Wang

Jane Dillonaire wrote:
> 
> Since the original question dealt with projectile frass in 1st instar
> Monarchs (if I remember correctly) could it have something to do with the
> accumulation of toxins?  It seems to me that the first instars would be at
> greater peril from predators since they have not yet accumulated the
> quantities of milkweed toxin that later instars have.  Has anyone any
> information regarding the relative toxicity of various instars? comparative
> acceptability to predators of various instars?

 
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