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Rodent Control: The Good, the Bad, the Ugly

The Good, the bad, the ugly of rodent control

The impact of poisoning rodents on wildlife in Groton, or any other area, can be significant and often extends beyond the intended target species.


Rodenticides can accumulate in the bodies of poisoned rodents. When predators such as owls, hawks, foxes, or domestic pets consume these poisoned rodents, they can suffer from secondary poisoning. This can lead to illness or death in these animals.


Rodenticides may also affect non-target species, including other small mammals, birds, reptiles, and amphibians. Animals that scavenge on poisoned rodents or feed on contaminated prey can be harmed. This can disrupt local food chains and ecological balance. When predators are removed due to poisoning, it can lead to an increase in rodent populations, which in turn can impact vegetation and other wildlife populations. Some rodenticides can even enter water bodies through runoff or improper disposal, posing a risk to aquatic ecosystems and organisms.


Over time, rodent populations may develop resistance to certain rodenticides, leading to the need for stronger or more toxic chemicals. Additionally, if rodenticide use temporarily reduces rodent populations, it may create ecological niches for other rodents to move in, potentially leading to rebound populations.


Learn more about The Good, the Bad, and the Ugly side of Rodenticides, and their impact on area wildlife and your garden on April 30 at 7 pm at The Center (163 West Main Street, Groton). Save Nashoba Valley Wildlife will host Gary Menin who will explain the danger of rodenticides and provide alternate options for ridding your property of unwanted critters. There will also be a short film showcasing area wildlife.

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