they were all at it today!!! and on my Broad Beans too- the weather? Don't know what's set them off.
My Spring sowing has got blackfly as I was too busy harvesting the Autumn ones to notice I'd forgotten to take the tips out, obviously good to have a food source near your young 'un's
My neighbours beans 5 ft away had no ladybirds or blackfly on whatsoever (he sprays), but I counted over 20 'doing the nasty' as my friend would say.