Gentle bees becoming testy!

[MeadFarm]

I have been stung more in the past month than I have in my entire life! I understand that the alarm pheromone sticks around on clothes and such until washed (not the issue).
And one of the times I was just in the wrong place at the wrong time - I was watching the entrances for pollen coming in and a yellow jacket landed on the bottom board. The bees immediately attacked! I got one under my eye (I think the yellow jacket got away...the little *#%@)
Is the more aggressive behavior due to lack of nectar perhaps? I sure hope my otherwise friendly bees aren't becoming aggressive.

[Shawn]

Could be the time of the year, maybe the hive is being harassed by other creatures, and as you said lack of nectar. I know when it comes closer to fall here the bees get so bad about be aggressive. No one gets stung that I know but there sure is a lot of head butting going on. 

[MeadFarm]

Seems unfair that I have to suit up during the hottest time of the year! Oh well, that's the price we pay.

[Shawn]

Im pretty sure there are some post from last year where people were getting stung for no reasona nd the defence for the hives was strong.