I use merit for grubs, but a customer asked if it killed ticks and fleas as well. Rather than answer incorrectly I told her I would research it. So, Does Merit kill all the above or is there something else I should be using? Also I last year I did only one application in July and still had damage. How many of you are using 2 apps? Say late june and mid august. If merit doesn't kill ticks should I use something else first and then merit for the second?