Managing Feral Pigs on Small Acreage Properties and Metropolitan Areas 2025

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INTRODUCTION

One of the many challenges facing new and established Texas landowners is the battle against feral pigs (Sus scrofa; hereafter feral pigs), given the damage they cause. They are known by many names like feral pigs, wild pigs, wild hogs, wild boars, and razorbacks to name a few, and they are recognized to be a highly adaptable, invasive exotic species. Feral pig is a term used to describe three groups in North America, 1) feral pigs (those originating from domestic swine), 2) Eurasian boar (those imported from Europe), and 3) hybrids of the two Domestic swine were introduced to North America by Spanish explorer Hernando de Soto in 1539 and later introductions were made in Mexico by Hernando Cortez in 1600 14

Since then, feral pig populations developed and continued to grow, the exact population numbers are hard to determine but research puts their current population in the millions 20 Because of their invasive characteristics and fast-growing population, they can cause agricultural production damage, water quality impacts, and competition with native animals and livestock. In 2024, agricultural losses exceeded $670 million from feral pig activity and landowners across Texas are spending more than $130 million in control costs. Additionally, they pose a serious disease threat to humans, livestock and wildlife species, as noted in many publications, including “Disease Concerns Associated with Feral Pigs”.

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In this publication, we address the challenges that small acreage and metropolitan area landowners face in Texas. In this report we will provide management options that can be tailored to fit the restrictions common to these properties and suggest strategies that can be used to increase effectiveness when reducing feral pig numbers, especially for landowners with limited resources We will also provide information on management resources available to landowners across the state

A CHANGING TEXAS

Texas is a unique state with 82% of the working lands (farms, ranches, and forest lands) being privately owned, but even so, its landscape is rapidly changing. For example, it houses 7 of the 15 fastest growing cities in the nation, having seen a population boom from 19M to 29M in 20 years and a projected growth to over 40M by 2050. Over 86% of that growth has been in 25 counties, where working lands

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have changed to other uses This metropolitan growth diminishes land ownership size and further affects the rate of working land fragmentation As of 2017, the small land ownership tracts represent 58% of the total operations, but account for only 4% of all working lands in Texas. Combining this information and knowing that 86% of the state’s population lives in just 25 counties raises questions about the way people manage feral pigs on the changing landscape.

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OVERVIEW OF MANAGEMENT ON SMALL ACREAGE

AND METROPOLITAN

AREAS

While the management of feral pigs will be different among properties, there are some clear challenges when assessing both small acreage properties and metropolitan areas While these two types of land use are not the same, they both may experience some of the same issues For metropolitan areas some of the biggest issues can be lack of knowledge, the inability to perform specific management techniques, and the physical and/or the financial strain of management techniques.

For most metropolitan landowners, the ability to use a firearm or set a trap is going to be restricted by either city code or organizations such as homeowners’ associations (HOAs).

For small acreage properties some of the same problems can exist Depending on the size of the property and the location relative to a metropolitan area, there may be city or county limitations on the use of firearms As we dive further into this publication, we will explore options for management and strategies that can be utilized for these groups

FERAL PIG BIOLOGY AND ECOLOGY

Feral pig biology is an important aspect to know when we consider management methods across any landscape. Historically, domesticated pigs were selectively bred for food Desired traits included higher growth rates, reproductive output, and disease resistance Their reproductive output 23 is a key factor aiding expansion and population establishment Males can reach sexual maturity at 5-12 months of age and will begin actively participating in breeding at around 12-18 months of age. Female sexual maturity is variable but generally occurs between 5-12 months. They have an average gestation of around 115 days and will cycle every 1–24 days, if not successfully bred. Further, they may have 1 or 2 litters a year with litter size ranging

2 2 from 3-9 piglets.

Feral pigs are omnivores and are known as dietary generalists, with their diet mainly consisting of vegetation 22 The vegetation of choice will vary depending on the season and the location and will include roots, bulbs, mast, and agricultural crops Animal matter such as invertebrates, herps, carrion, birds, and small and large mammals make up a smaller yet consistent portion of their diet. Their ability to utilize such a wide range of food sources contributes greatly to their success and our disdain when noting their invasiveness and damage.

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Managing Feral Pigs on Small Acreage Properties and Metropolitan Areas 2025 by Texas A&M Natural Resources Institute - Issuu