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Nutria Control

Univ. Publications

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Scientific Name: Myocastor coypus

Biology

• Lives in Water and Marsh Areas
• Nocturnal

Sign

• four-toed front tracks and webbed five-toed hind tracks with chest or tail drag marks;
• dark green to black, cylindrical 2-inch long droppings with parallel grooves that run longitudinal. Dropping occur at waters edges, floating or on shore.

Damage

• Tree Damage-Nutria eat seedling bald cypress, girdle fruit, nut, and shade trees and ornamental shrubs.
• Lawn Damage-  Nutria eat arrowhead and other aquatic and landscape plants.
• Structural Damage-Styrofoam in boat docks, wharves, and house boats.
• Agricultural Damage-Nutria eat rice, sugarcane, corn, grain, melons, vegetables, sorghum, sugarbeets and table beets. They also eat wheat , barley, oats, and peanuts.

Solutions

Habitat Modification

• fences
• proper dam or shoreline construction

Repellents

None known

Trapping

• body grip
• foot hold
• box traps

Shooting

Toxicants

• zinc phosphide bait

Safety

• Nutria can carry the parasites that cause swimmer’s itch or giardiasis.
• Nutria undermine levees and other water-holding structures.

University Publications

Identifying and Managing Aquatic Rodents in Texas: Beaver,Nutria and Muskrats by Texas Agricultural Extension Service.1986. 46 pages. 8½x11'' pages. Color photos.

This document, suitable for inclusion in a 3-ring binder, will help landowners understand and address damage caused by beaver, nutria and muskrats.

Order On-Line

Nutria.com--Louisiana Dept. of Wildlife & Fisheries 

News

April 14, 2006. Nutria Found in Seattle, WA. The Mercury News.