Hi Phil ive used an insecticide spray, it say's if using on edible fruit do not harvest for three days from spraying, i will not be harvesting these until late summer or even next year when i will prune, the leaves will be washed, dabbed dry, used or frozen. Bham i do mist it and the chilli plants with water containing a drop of Fairy liquid which will then sit on the leaves rather than roll off, bugs dont like wet leaves lol