A recent study conducted by University of Ottawa researchers revealed that applying woodchips to woodland trails can significantly diminish local tick populations. The study proposes that this simple method could lower the risk of tick bites and subsequent contraction of Lyme disease for hikers in forested areas.
The research team selected two locations within Ottawa’s Greenbelt for their experiment: the Mer Bleue sector in the east and the Stony Swamp sector in the west. They treated 20 sections of trails, each 50 meters long, with either untreated woodchips or woodchips treated with the pesticide deltamethrin.
Results indicated that areas with untreated woodchips experienced a 50% decrease in tick numbers, while those with pesticide-treated woodchips saw a remarkable 99% reduction, according to researcher Katarina Ost. Ost highlighted the potential of this approach, emphasizing the importance of suitable trail conditions for its effectiveness on a larger scale.
The study explained that woodchips deter ticks by impeding their ability to climb vegetation, a common method ticks use to attach to hikers or pets. Deltamethrin-treated woodchips were found to have an even more pronounced impact on tick reduction without posing risks to pets due to the pesticide’s minimal movement after application.
To prevent tick encounters in residential areas, the federal government recommends creating a border of wood chips, mulch, or gravel around lawns to create an inhospitable environment for ticks. Dr. Christopher Labos from McGill University emphasized the significance of controlling tick populations to curb the spread of tick-borne diseases, noting that staying on designated trails is crucial for the woodchip strategy to be effective.
Further research is needed to determine the direct link between reduced tick populations and decreased Lyme disease cases. While reducing tick numbers is essential, proving a medical benefit in terms of disease prevention is crucial, according to Labos.
The study’s findings offer a promising solution for mitigating tick populations and potentially lowering the incidence of Lyme disease in affected regions.