I was in the audience, I recommend it, it was very informative.
S>The big light green leaves of a Pinguicula may well be 'read'
S>as yellow by these gnats... maybe the leaves reflect some yellow-S>spectrum
light.
Has there ever been a major project done on viewing CP using
ultra-violet light or other spectrums invisible to humans but seen by
insects etc.? I've seen some fascinating documentaries done with this
technique regarding flowers and the amazing bull's eyes and runways they
draw for insects, could the same be true of CP traps or leaves?
DE>Now this raises an interesting point, what do pygmy Drosera eat?
DE>I've never seen anything on the few I grew in the past but perhaps
DE>they were so unhappy with the conditions they couldn't.
My pygmies do in fact catch fungus gnats on their own, as well as
springtails.
I do supplement their diets with fruitflies though to make sure they
have the
energy needed for good gemmae production.
Regards,
Demetrios