I bought 2 of these traps and they've been in the hot house about a month and there are zero mosquitoes in the traps. That is especially disappointing since I had bought these on recommendations on drugstore dot com from people also in Hawaii. But those reviews from 2004 are for a different product from what I got. It used to come with a separate pheromone and a cross tube to put the lure on and now there is no cross tube and all the solid items in a packet gets dumped into the water.What I have found that DOES work is from a youtube video for a $1 mosquito bag fan trap. I bought a box fan and made the bag from tulle cloth I got at Walmart and that bag is full of all sorts of flying bugs and it started working immediately. I sometimes stand behind the fan to act as a lure and then shoo the mosquitoes into the fan and bag. Do yourselves a big favor and make one or more of these!