Pests We Treat - Dirt & Grease Contributed to a Fruit Fly Problem in Manville, NJ This was why this business in Manville, NJ had fruit flies. Related Content: Article: 3 Sure-Fire Ways to Keep Mice Out of Your Kitchen Article: A Guide To Drain Flies Case Study: Fruit Flies Invade Marlboro, NJ Deli Press Release: End of Summer Can Still Bring Stingers Back to Previous Page Back to Videos