hi. i think that this is my first time posting in the pesticide forum, so please bare with me here. i have a customer who wants me to spray for ticks in his back yard. he wants to go organic though and only treat one time. they wanted me to use some organic pyrethrin? the guys over at shemin's told me that it only gives kill for 8 hours though and then goes away. this guy has a lot of woods there, big shrubs and whatever. now the guys at shemins also told me about the capsule stuff that lasts a lot longer. i think 2 weeks? i am not sure what to do about this situation. where i live and work you need to do the 48 hr thing. also i have another customer who is interested in controlling ticks.