October 11, 2018

ContraPest successfully suppressed rodent infestations in a multi-family housing complex located in a dense urban area of New York. The buildings had a long history of traditional rodent control which provided limited effects as surviving rats repeatedly bred and the treated population recovered to their original size. The PMPs on site were constantly responding to these population peaks throughout their rodent control program.

Multi-family housing units are vulnerable to rodent infestations due to the abundance of resources they provide, including water, human food waste and ample cover for shelter and breeding. These resources are easily available to the rats as they are found in a single, confined building. Indoor shelter also offers the rats protection and eliminates their risk of predation. It is important to consider these factors when implementing tools for rodent control to target the best locations that will lead to the greatest effect.

Prior to ContraPest installation, a detailed site assessment was conducted to gather information on the prevalent rat population. Suspected areas of high rat activity included interior trash compactor rooms, subsurface basements with water sources, exterior dumpsters and communal areas containing human food waste. To verify if rats frequented these areas to feed, chew cards, made of corrugated plastic and peanut butter filling, were placed in suspected areas and left in place for 48 hours. Chew cards that were gnawed indicated that rats were comfortable stopping long enough to feed and provided suitable baiting locations. Thus, ContraPest bait stations were placed at these identified foraging locations and consumption was successful.

After deploying ContraPest, the PMP team on site at the multi-family housing saw a reduction in rat activity in as little as one month after deployment. Implementing ContraPest in their current IPM program allowed the PMP team to focus their efforts towards prevention, rather than constantly battling the infestation. Optimizing placement of bait stations helped target problem areas and delivered the product to a substantial number of rats on site which successfully reduced the infestation.