Zappify - While Zappify is exceptionally powerful, for very massive areas, you might need multiple units for surest coverage. Yes, however, it's far best during nightfall and sunrise when mosquitoes are most active.   Facebook:   https://www.facebook.com/ZappifyUSA/   https://www.facebook.com/ZappifyMosquitoZapperCanada/   https://www.facebook.com/ZappifyCanada/  ...