Intensive, they don't scare em away, they eat em. Atleast the ones worth eating. They don't eat smaller guys like gnats and white-flys, unless they are tiny spiders. SBS, you are very welcome. I'm glad I was helpful. If you're still concerned you should start now since you've got so little time until flowering. 3-4 weeks of treatment is better than none. Try to get at it every other day, or more often if the plants take it. If they don't like it much just space it out more. I've never had any problems using it given the rest of the environment is up to par. But like I said, only through the first few weeks of flowering. You can go with it longer into flowering if you decide it doesn't pose a mold threat, but like any other water based solution sprayed onto your plants it will increase the risk. Even though it's supposed to prevent mold/mildew. It's not optimum to add your nutrients to the mixture, incase you wanted to foliar feed with the same solution.