We service a building that has been having a constant problem with gnats. There are no signs of moisture buildup, no trash, no leaks in drop ceilings, no leaks in the a.c. ducts or drip pan, only 2 ornamental plants inside, and checked the outside perimeter and there was also no sign of plants with moisture buildup. We have been using fly web fly control lamps and they have been catching a lot of them but activity continues. Do you have any recommendations? Please email me at email@example.com. Thanks
I think it is safe to say that the source of these flies remains healthy and productive, and if that source is inside it probably will continue to produce flies until it is found and corrected. It is always important in fly control to know which species you are dealing with, and the term "gnats" is often applied to any small fly, so it could be drain flies, phorid flies, fruit flies, or fungus gnats. I'd start by getting a firm ID on what you are facing, and this will help you better understand its biology and likely food choices, and thus help you in your search for that source. Focusing on adult fly cont... Read more
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