I seem to recall that bees and wasps have alert pheromones, so that if a few of them are killed or attacked in the proximity of others, they will attract backup.
I assume it's pretty straightforward how this would work out if I were to start swatting bees next to their hive, but how does it work if they're killed by... a plant?
Would the bees try to sting or choke the plant? And if it doesn't work would they ever give up? Would they alternatively realize it's a plant and therefore can neither be compelled to move nor harmed by venom? If so would they be aware they can do more damage to it with their mandibles than with their stingers?
Conceptually, I guess the experiment would be pretty easy — placing an array of carnivorous plants right in front of a beehive — except my carnivorous plants are still very small and rarely eat, and I don't own bees and don't have any wasp nests in the area.
Has anybody tried this or observed it in the wild?
I'd also be curious whether it's any different for e.g. Venus flytraps and pitcher plants. The former would likely get filled up rather fast if swarmed, whereas the latter could be able to swallow a large part of a hive. Also, venus flytraps actually move, so perhaps that might trip off the animal-pattern-recognition of the insects whereas a pitcher plant might more readily be identified as a plant.