All of my VFT's were closing really fast when I bought them, but since they have been out in my flower bed in about 6 hours of sun a day, they just plain don't want to close. I have seen ants devouring the nectar, and do everything except pull the traps over themselves, but my traps either don't want to close or close very, very, very slow. Does anyone have a likely reason this could be happening? They get really good sun, they are colored up nicely. I don't know what the humidity is. Like, maybe, 50 percent in the day, to 80 at night. Anyway, any help is appreciated.