The Glis glis, also known as the edible dormouse, is a small rodent that has become a well-known pest in parts of the UK, particularly in the Chiltern Hills. While these creatures may appear harmless, their behavior can lead to significant problems for homeowners and businesses. In this article, we answer some of the most common questions about Glis glis, helping you understand these pests and how to manage them effectively.
What Is a Glis Glis?
The Glis glis is a small, gray rodent with a bushy tail, large eyes, and rounded ears. Originally native to central and southern Europe, they were introduced to the UK in 1902 by Lionel Walter Rothschild at Tring Park in Hertfordshire. They have since become established in the Chilterns and surrounding areas, where the mild climate and abundant woodlands provide ideal conditions for their population to thrive.
Why Are Glis Glis Considered Pests?
Although they are not widespread across the UK, Glis glis cause significant problems in areas where they are established. Their pest status arises from the following issues:
- Property Damage: Glis glis can invade homes, lofts, and wall cavities, where they gnaw on electrical wires, insulation, and wooden structures. This behavior increases the risk of fires and structural damage.
- Noise Disturbance: Being nocturnal, they are most active at night, creating loud scratching and scurrying sounds in walls and ceilings.
- Hygiene Concerns: Their droppings and urine contaminate living spaces, causing odors and potential health hazards.
- Agricultural Damage: In rural areas, they can damage fruit orchards and feed on nuts, seeds, and crops, leading to economic losses.
Are Glis Glis Protected by Law?
Yes, Glis glis are protected under the Wildlife and Countryside Act 1981 in the UK. This means it is illegal to trap, kill, or handle them without a proper license. While this legal protection helps ensure humane treatment of the species, it makes managing infestations more complicated for homeowners. Only licensed pest control professionals are authorised to address Glis glis issues.
How Can I Tell If I Have a Glis Glis Infestation?
There are several signs to look out for if you suspect a Glis glis infestation in your property:
- Unusual Noises: Scratching, scurrying, or vocal squeaks at night, particularly in lofts or wall cavities.
- Droppings: Small, dark droppings in loft spaces, near nesting sites, or in stored boxes.
- Nests: Glis glis create nests from shredded insulation, paper, or soft materials.
- Gnaw Marks: Damage to electrical wires, wooden beams, or stored items can indicate their presence.
If you notice these signs, it is essential to act quickly to prevent further damage.
How Can I Prevent a Glis Glis Infestation?
Preventing an infestation is often easier and less costly than dealing with one. Here are some tips to protect your home:
- Seal Entry Points: Inspect your home for holes in brickwork, missing vents or displaced roof tiles.
- Trim Vegetation: Cut back overhanging tree branches and ivy that could provide access to your roof.
- Remove Attractants: Keep food stored securely in airtight containers and clean up any outdoor food sources like bird seed or fallen fruit.
- Inspect Regularly: Periodically check loft spaces, outbuildings, and other areas for signs of activity.
What Should I Do If I Have Glis Glis in My Home?
If you discover Glis glis in your property, it’s crucial to contact a licensed pest control professional. DIY methods are not only ineffective but could also lead to legal complications due to the species’ protected status. Licensed pest control experts are trained to:
- Assess the extent of the infestation.
- Comply with legal regulations for handling and removing Glis glis.
Attempting to handle Glis glis without proper training and authorization is not recommended and could worsen the problem.
Why Are Glis Glis So Common in the Chilterns?
The Chiltern Hills are an ideal habitat for Glis glis due to their dense woodlands, abundance of food sources like nuts and berries, and relatively mild climate. The species has remained localised to this area since their introduction over a century ago, making the Chilterns their stronghold in the UK.
How Do Pest Control Professionals Deal with Glis Glis?
Professional pest control services follow strict guidelines to handle Glis glis infestations legally and humanely. Common steps include:
- Risk Assessment: Conducting a basic Risk Assessment to ensure the safety of residents, children and pets.
- Visual survey: Carrying out a visual survey around the property to locate potential entry points.
- Trapping and monitoring: Deploying professional-use traps in accessible areas of suspected activity and monitoring them at regular intervals
- Removal and dispatch: During the course of each visit we re-bait and re-set the traps and humanely dispatch any captured Glis glis.
- Please note: Please note that I normally seal any small visible and accessible gaps during above rodent control treatments, but this DOES NOT include issues with sealing roof tiles, roofline work, gaps in eaves or structural defects. In such cases your best option may be to engage a professional roofer, builder or pest proofing specialist such as: https://www.pestprooflondon.co.uk/
Licensed professionals ensure compliance with the law while effectively managing the infestation.
Conclusion
The Glis glis is a unique pest in the Chilterns, posing challenges for homeowners and businesses alike. Understanding their behavior, the signs of an infestation, and the importance of professional pest control is essential to managing these rodents effectively. By taking preventative measures and seeking licensed help when needed, you can protect your property and avoid the costly damages associated with Glis glis infestations.