A physical barrier designed to prevent rodents from accessing the trunk of a tree, particularly fruit-bearing varieties, is often employed. These devices typically encircle the trunk, creating a smooth, overhanging surface that rats and similar pests are unable to climb past. As an example, a homeowner might install a metal cone around the base of an apple tree to protect the fruit from being eaten by rodents.
The implementation of such protective measures is important for safeguarding fruit yields and maintaining the overall health of trees. Rodents can cause significant damage by gnawing on bark, which can girdle the tree and ultimately lead to its death. Furthermore, preventing access to fruit minimizes losses and reduces the need for chemical pest control methods. Historically, various designs and materials have been used, adapting to local pest pressures and available resources.