![]() ![]() With baiting, proper placement of the bait will result in effective ant control, however attention must be paid to detail to ensure ant elimination – checking for ant activity and placing baits in correct situations. Effective Pharaoh ant control utilizes an integrated pest management approach, with focus on ant baits containing insecticides. Furthermore, pharaoh ant colonies will often become alarmed when treatment occurs and will split their colony into smaller units. Although such methods may kill off the 5-10% of the ants that leave the nest looking for food and water, they do not usually result in colony elimination. Pharaoh ant control has typically been based on the spraying of insecticides around areas where ants have been seen and/or dusting in wall voids and behind electrical switch plates with insecticide dusts. Treat the tiles with insecticide dust or residual sprays. Inspect old railway tiles around the building, as often they are the source of infestation. Caulk around window and door frames and any gaps around electrical and water lines will help to prevent the ant from coming indoors. Cut trees and shrubs back that come in contact with the building. Spray around foundations and other areas of concern outdoors. OUTSIDE, check around buildings for foraging trails, especially in the direction of trees and shrubs, wood piles etc. Exterior sprays with a residual insecticide should be performed treating around window frames, door frames, cracks in the foundation and where the soil and foundation meet. Wood piles should be off the ground and stored away from the building. Outside, be sure tree branches are not touching the building. Treat around base boards, window frames and door frames with labelled residual insecticide. Dust around all water pipes, under sinks, toilets, dishwashers, etc. ![]() Once the nest has been located, residual sprays and dust can be used to treat the nest. Carpenter Ants have trails they follow throughout a structure and often use electrical wires and pipes. Be sure to inspect crawl spaces, basements and attics. Check suspicious areas with a knife blade, a blade will penetrate infested wood very easily. with a screwdriver and listen for sound changes nest cavities give a hollow dull ring. Gently tap all exposed wood such as floor joists, sill plates, roof rafters, etc. The best indication of an INDOOR NEST is sawdust (FRASS), wood piles containing insect body parts and/or a rustling sound in the walls. The first step is to determine if the ants are merely foraging inside for food or if there is a nest inside. ![]()
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