PIX 2015

Milkweed alert

Started Jul 4, 2014 | Discussions thread
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Old Listener
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Re: Milkweed alert
In reply to GeorgianBay1939, Jul 5, 2014

GeorgianBay1939 wrote:

Now you've piqued my further interest in milkweeds! My understanding is that the sap (latex?) of milkweeds is a factor in making the Monarchs toxic to predators. Would this be true of oleander aphids?

I don't know whether eating milkweed sap makes the aphids toxic to their predators.  I know that the sap discourages most insects from eating the leaves and sap.  The oleander aphids and milkweed bugs (pictures in this gallery) have adapted to consume milkweed sap.

some pictures of milkweed and insects that feed on it.

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