Let me give some background here. Two years ago, my husband and I moved into an older house that had been converted into a duplex. Come summer, we were invaded by blowflies! I talked to the landlord then, and he acted like it was no big deal, so no help there. Since then, every time warm weather comes around, we get what adds up to hundreds of them in the house each summer.
I keep the house clean, and take the garbage out regularly. I also clean the litter boxes twice a day. Since this is an ongoing thing and not a one-time occurrence, I assume nothing has died in our walls. The houses around us do not have this problem. I've tried a number of different sprays: Raid, Black Flag (which does kill them, but not right away, which means that during the day, they're still flying around the house), and even Off. Off seemed to be working, until today. I have non-smelly fly traps outside that do draw them in, but just as many get inside. (I don't want to use the smelly fly traps because we live right next to the funeral home-I doubt the mourners would appreciate the smell.) I have tried a number of essential oils: lavender, citronella, lemon, and cedar. None of them have an effect. The flies seem to be coming in around the back door to the kitchen. We have a storm door but they still get in.
I have found that black curtains are helping; they don't come in through those windows, and they don't come past the curtain over the stairway anymore. However, we can't really put black curtains up over the back door. I considered the bag of water trick, but supposedly it only works in sunlight, and the flies come around even on cloudy days.
Does anyone have any suggestions to keep them out in the first place? I'm tired of sweeping up dozens of dead flies every night, and they seem to like following me around when I'm downstairs, to the point that I can't get anything done for swatting at flies the whole time.
I keep the house clean, and take the garbage out regularly. I also clean the litter boxes twice a day. Since this is an ongoing thing and not a one-time occurrence, I assume nothing has died in our walls. The houses around us do not have this problem. I've tried a number of different sprays: Raid, Black Flag (which does kill them, but not right away, which means that during the day, they're still flying around the house), and even Off. Off seemed to be working, until today. I have non-smelly fly traps outside that do draw them in, but just as many get inside. (I don't want to use the smelly fly traps because we live right next to the funeral home-I doubt the mourners would appreciate the smell.) I have tried a number of essential oils: lavender, citronella, lemon, and cedar. None of them have an effect. The flies seem to be coming in around the back door to the kitchen. We have a storm door but they still get in.
I have found that black curtains are helping; they don't come in through those windows, and they don't come past the curtain over the stairway anymore. However, we can't really put black curtains up over the back door. I considered the bag of water trick, but supposedly it only works in sunlight, and the flies come around even on cloudy days.
Does anyone have any suggestions to keep them out in the first place? I'm tired of sweeping up dozens of dead flies every night, and they seem to like following me around when I'm downstairs, to the point that I can't get anything done for swatting at flies the whole time.