My parents claim to have an issue with insects they claim that has moved from the outdoor garden to the inside of the home. They are tiny insect that cannot be seen. Keep in mind they are both in their 80's. I have visited and even stayed the night but saw no problems.
They think it is the noseeums like here: www.noseeums.org but I am not so sure. They have used all types of spray. I am wondering if its red bugs or chiggers. Sorry I am no insect expert but I looked at several sites such as www.chiggers.info BUT maybe the www.noseeums.org site describes the issue better.
Anyway thanks for any help or control advise.
Here is a link that might be useful: NoSeeUms