Ouch! Best time to water is am, before 10am. After that you can get sun scald. Never water pm as water will stay on plants & attract all kinds of fungus spores, what ever happens to be in the air. It's humid in my area, so I have to make sure I do nothing to block airflow around my grow. Keep it clean, no dead leaves hanging around & other organic debris, & good airflow. Thats the key to prevention disease & insects. Next grow, start using the fan from the beginning. Oscillating fan.

I usually put a squirt of dish soap into anything I spray on my plants, foliar feeding, insecticide, fungicide. Most things need it as a wetting agent.