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A pest-exclusion fence is a barrier that is built to exclude certain types of animal pests from an enclosure. This may be to protect plants in horticulture , preserve grassland for grazing animals, separate species carrying diseases ( vector species ) from livestock, prevent troublesome species entering roadways, or to protect endemic species ...
In agriculture, fences are used to keep animals in or out of an area. They can be made from a wide variety of materials, depending on terrain, location and animals to be confined. Most agricultural fencing averages about 4 feet (1.2 m) high, and in some places, the height and construction of fences designed to hold livestock is mandated by law.
On the other hand, fencing out deer from a lawn or garden can be more costly. Materials needed for exclusion will depend upon the species causing the problem. Large mammals can be excluded with woven wire fences, poly-tape fences, and electric fences; but many communities forbid the use of electric fencing in their jurisdictions.
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Groundhogs prefer to live near pastures, along the edges of woods, or under sheds or structures. Their main burrow entrance is 10 to 12-inch diameter hole with burrow systems that are 30 feet in ...
To prevent them from being killed, volunteers may place low fences along roads which the animals have to cross. On short distances, dry pitfall traps are then placed along the fences to collect the animals, which subsequently are manually transferred to the other side of the road, thus preventing massive roadkill. [citation needed]
Unwanted alarms caused by birds and other animals can be avoided by adjusting the sensors to ignore objects that exert small amounts of pressure on the wires. This type of system is vulnerable to intruders digging under the fence. A concrete footing directly below the fence is installed to prevent this type of attack.
Cattle grid on country road. Cattle grids are usually installed on roads where they cross a fenceline, often at a boundary between public and private lands. [5] They are an alternative to the erection of gates that would need to be opened and closed when a vehicle passes, and are common where roads cross open moorland, rangeland or common land maintained by grazing, but where segregation of ...