Grafter
From Wikipedia, the free encyclopedia
| Classification | |
|---|---|
| Structure | Field |
| Origin | Fabricated |
| Class | Inborn |
| Characteristics | |
| Length | 20–40 cm |
| Mass | 1–3 kg |
| First recorded | 2021 |
The Grafter is an Inborn field parasite of Fabricated origin that attaches to structures and converts their material into substrate that Beckon roots can enter. It does not attack people or animals. Concrete under a Grafter becomes porous within weeks, and buildings, sewers and tunnels near infested ground are undermined before the root mat reaches them.
Description
A Grafter is a flat, near-black organism 20 to 40 cm long and weighing 1 to 3 kg, shaped like a large limpet. It clings to a surface with a muscular foot and moves slowly, a few metres an hour. It has no eyes and no means of attack, and a thin coat of membrane gel.
The underside secretes acids and enzymes that dissolve the binding paste of concrete and the mortar of brickwork, and fine strands grow from it into the pores it opens. Steel reinforcement exposed by the process corrodes. A wall under a group of Grafters loses most of its strength within weeks, and the material left behind is soft, damp and full of organic strands, which a root mat can take over.
Life cycle
Grafters are produced by Beckons and leave infested ground along sewers, drains, culverts and cable ducts, travelling at a few metres an hour for months. They are also carried into towns by Light Carriers. A Grafter feeds on the organic matter in the sewage, soil and damp it settles in, and lives for about a year. Grafters do not breed: every Grafter is produced by a Beckon. A dead Grafter decomposes into the substrate it has made.
Behaviour
Grafters settle mostly in places that are rarely inspected: foundations, basements, sewers, tunnels, culverts and the undersides of bridges. They work in groups of tens to hundreds along a line, usually on the side of a built-up area facing the nearest infested ground. They take no action against people who find them. Grafters work faster in warm, damp conditions, and slow down in winter and in dry ground. Timber, steel and stone without mortar are less affected than concrete and brickwork.
Effects
Most structural damage from the infestation in its early years was caused by Grafters, and most was found only after it had happened. Sewer collapses, subsidence and failed foundations are the usual first signs. Damaged buildings are condemned, and an area with widespread Grafter damage is evacuated even if no other organism has been seen in it.
Since 2023 Grafter damage has been the most common reason for the condemnation of buildings in towns near infested ground in the European Federation. Railway bridges, tunnels and dams near infested ground are inspected for it, and the Channel Tunnel's lining is checked on a fixed schedule. Several member states set up schemes in 2024 to compensate owners of buildings condemned for Grafter damage, after property insurers excluded it from standard cover.
Control
A Grafter is killed easily once found, with hand tools, fire or salt. Finding them is the difficulty. Municipalities near infested ground inspect sewers, basements and foundations on a fixed schedule, and core samples are taken from load-bearing concrete. Since 2024 dogs trained to the smell of Grafters have been used to search sewers and basements, and the acid they secrete can be detected in the water draining from a sewer. Grafter clearance is part of municipal pest control in the European Federation, alongside the clearing of Buglins. Federation property insurers have excluded Grafter damage from standard building cover since 2023.
History
Grafters were first identified in 2021, in coastal towns of West Africa and South America where sewers and foundations had failed without apparent cause. Their first confirmed find in Europe was in the sewers of a town in southern Italy in 2022. Until about 2023 most Grafter damage was attributed to subsidence, poor construction or corrosion, and the extent of the early damage was established only by later surveys.