Is it OK to spray herbacides near bees?

[a wannabee]

We are getting ready to do an aerial spray on our property to kill kudzu. Does anyone know if this will harm the bees as it falls on the hives and bees?

[pdmattox]

I would venture to say no but I also would cover them the night before with sheets. If the kudzu is blooming the bees will be feeding on it and you might want to wait some.