We've been in the high 90s and low 100s for the last week+ so I've been running the misters extra long, sometimes, during the heat of the day running the misters non-stop for 4-5 hours a day, to keep the greenhouse in the 80s. Normally I have the misters run for 1 minute during the heat of the day every 15 minutes. That is enough to cool the green house by about 5 degrees, which is typically enough during the hot part of my summer days. It is also enough time, with the greenhouse fans running to dry off the leaves between each misting, which helps to reduce disease pressure.
This morning I sprayed a combination of three different insecticides and one fungicide to help keep the plant from getting diseases.