Marsh Rice Rats: Identification, Behavior, and Extermination Techniques

Marsh Rice Rats, scientifically known as Oryzomys palustris, are rodents native to the wetland habitats of North America. Understanding their characteristics and behavior is essential for effective marsh rice rat management. Here’s a comprehensive guide to Marsh Rice Rats:


Marsh Rice Rats are small to medium-sized rodents, typically measuring around 6 to 8 inches in length, excluding their long tail. They have soft fur that ranges in color from gray to brown, often with a lighter underside. Their tails are long and scaly, contributing to their excellent swimming abilities. Marsh Rice Rats have relatively large eyes and ears.

Marsh Rice Rats


As their name suggests, Marsh Rice Rats are well adapted to wetland environments, including marshes, swamps, and rice fields. They are excellent swimmers and are known for their ability to climb vegetation and build nests above the waterline. Marsh Rice Rats are primarily herbivorous, feeding on aquatic plants, seeds, and grains.


Marsh Rice Rats primarily inhabit marshy areas with dense vegetation, such as reeds, cattails, and other emergent plants. They construct nests made of vegetation and grasses, often located above the waterline to protect them from flooding. These rodents are most commonly found in the southeastern regions of the United States.

Control Methods

When dealing with Marsh Rice Rat infestations, it is crucial to implement effective control methods. Here are some common approaches:

  1. Habitat Modification: To discourage Marsh Rice Rats from inhabiting your property, modify the habitat to make it less appealing. This includes removing excessive vegetation, trimming overgrown shrubs, and eliminating standing water sources or areas prone to flooding.
  2. Exclusion: Seal any openings or gaps in structures to prevent Marsh Rice Rats from entering buildings or other protected areas. This includes sealing gaps in foundations, repairing damaged screens, and ensuring doors and windows are properly fitted.
  3. Trapping: Utilize live traps or snap traps strategically placed in areas of Marsh Rice Rat activity. Bait the traps with attractive food sources, such as grains or seeds, and regularly check and remove captured rodents.


Preventing Marsh Rice Rat infestations involves habitat modification and exclusion techniques. Clearing vegetation, eliminating standing water sources, and sealing entry points can help deter these rodents from settling in your property.

If you have further questions or require professional assistance with Marsh Rice Rat management, contact our experienced pest control experts at Arete Pest Control. We have the expertise and resources to effectively address Marsh Rice Rat infestations and protect your property.

For immediate and professional help with Marsh Rice Rat infestation, don’t hesitate to contact our experienced team of exterminators. Safeguard your property and ensure peace of mind by reaching out to us today!