Hi all, I'm very new to bee keeping, I've had my hive for about 4 months now without a problem, can open and bees are behaved. Pleasure to work with.
But just today I approached the hive to look from a metre away and two of the bees attacked me and stung on the ear and arm.
This is obviously a sign that something is wrong, what are some reasons?
Outside the entrance it has more bees than usual.
And the only thing I have done recently which I think is a bad idea is that I left some comb outside the box when I scraped off some comb that was forming in wrong spot.
Could this robbing and aggressive behaviour be triggered by this?