I have been invaded by fruit files. There were thousands in the yard and they came into the house. Insecticide stained the walls and I did not want these chemicals in the kitchen. The vinegar fruit files traps caught a few but were not effective. Cleaning up did not get rid of them.
I remember working in and engineering office on the ceiling lighting when someone put ammonia into an old blueprint machine. The ammonia rose, gassed me, and I had to come down immediately. The fruit files roosted on the ceiling at night. I bought a gallon of ammonia and a hand sprayer. I sprayed the ceiling at night then turned off the light so that they could not fly away. In the morning only a few remained. I got them too. this seems to work. Frank Z
