I get that the small opening makes it hard to leave. But, can't they get a free meal and fly out the same way they got in?
By Jenny M
Editor's Note: Here is the post that Jenny is referring to.
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They don't seem to be smart enough to fly upwards.
They are attracted to CO2 but feed off of blood. There is no way they would get a meal out of this contraption. *facepalm* A fair number of them would probably down in the syrup in the bottom of the bottle.
Actually, mosquitoes feed off of nectar and other sugary things such as fruit juice, however the females need a blood meal in order to lay eggs. Some directions for mosquito traps call for adding a tiny bit of boric acid in the sugar/fruit juice mixture as a natural insecticide.
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