Winter ants, or ants that pose problems in cool seasons, are usually first noticed on or around concrete driveways, sidewalks, foundations and even inside enclosed garages or warehouses. To protect themselves from cold temperatures, ants will often nest beneath concrete objects. During the day, concrete absorbs and holds heat from the sun. This heat is retained by concrete for several hours after the surrounding ground has already begun to cool down with night time temperatures.
Controlling winter ants can be frustrating if the wrong approach is
taken. Professional sprays (Talstar,
Dragnet, etc.) may
offer some control but do not always take care of ant
problems as they would in warmer temperatures.
When signs of ant colonies such as dirt pushed up through cracks and expansion joints in warehouses, garages, driveways or sidewalks are evident, the use of a professional ant bait is recommended. Lightly scatter a granular ant bait around foundations of effected buildings, along driveways and sidewalks or other areas where ant activity is evident or suspected. Most species of ants will take to or accept ant baits during seasons of cooler temperatures.
Outdoors, use Maxforce Granular Insect Bait for most ant problems. Do not "water in" a granular bait, as you would a contact insecticide granule such as Talstar PL or Talstar EZ. Baits should be applied in cooler weather when rain is not expected for a few days. If the ants are identified as fireants, use Maxforce Fireant Bait. This is a bait that is specially formulated to mimic food source needs of fire ant colonies.