Invasive Species Control Using Goats

Today green solutions to environmental problems are all the rage, and they often work better than more drastic methods. Invasive species control using goats is one fairly recent innovation (except in the deep south, where the goat has been known as the best kudzu control for decades.) Both public and private landowners are turning to these browsing animals for help with imported plants that want to take over their new world.

In the same way that commercial beekeepers move their busy pollinators from field to field, goat herders are beginning to offer a traveling clearing service. Some herders have small bands of several dozen animals, while others may have 500 or more. Some of these entrepreneurs live with their flock, like nomads of the deserts. They put up temporary fencing as part of the clearing service.

The cost can be high, so often it's a public organization that engages the herd. Landfills, parks, and roadsides may be more easily cleared with animals than with manual labor or heavy equipment, and with far less disturbance to the ground. Firefighters have found that a herd of goats can quickly reduce the amount of underbrush around trees, cutting down the fire hazard. A goat never minds a steep hillside, either.

A private landowner may not have the budget for this. The answer might be to acquire a herd and use them to clear problem areas. Once the job is done, the animals can be sold to others with the same sort of problem. Anyone getting livestock should know about basic care and also be aware of plants that can harm grazing animals.

People may not realize that some of their favorite plants can be invasive exotics. Queen Anne's Lace and daisies look pretty, as does Dames Rocket. Honeysuckle perfumes the summer air, and multiflora rose makes attractive mounds of sweet-scented flowers. It's when these plants get out of control, like those pretty purple thistles, that problems arise. The imports can crowd out native species, interfere with crops, and encroach on cleared land.

Goats are even being used to reclaim marshes, where exotic species are ruining the habitat of native plants, animals, and fish. A goat doesn't like wading around in water, but the herd will browse on the exposed tussocks and can eliminate as much as 80 percent of undesirable vegetation. This will give the original plants a window of opportunity to come back, or re-planting efforts a chance to succeed.

Controlling brush plants like Autumn or Russian olive, touch-me-not ones like poison ivy, or seemingly indestructible things like honeysuckle and kudzu without the use of herbicides is environmentally desirable. Often a herd owner will have a sideline meat production business to help off-set the expense of buying and keeping the animals. Especially in warmer areas with ample rainfall, where a goat can forage year-round, this can work.

Goats prefer vines, bushes, and weeds over grass pasture. They like a variety of browse, so it may be necessary to confine them to one small area of vegetation at a time if you want a thorough clearing. Being able to clear an area without using herbicides is good for the planet, and the herd can save a lot of human labor, too.