Haven't seen many wasps this year so far, certainly not here in Sussex. September is the month they start to be a real bother. This year though I have noticed a SLIGHT increase in the amount of bumble bees around. I planted a lavender bush in my front(south facing) garden and it's been covered in bees. At the back of the house, the honey bees seem to love the Buddleia and the Hebe(not sure of spelling?)and honeysuckle. I do all I can to encourage the bees and the butterflies.