Non-Toxic Ways to Get Rid of Four Garden Pests

Gardeners usually try to embrace nature as much as possible. They live with the soil under their fingernails, welcome the rain as much as sun, and invite birds and bees into their yard. Yet they also try to avoid, as vehemently as possible, some of nature’s not so-savory aspects. Because the good, like rose blooms and apple blossoms, always comes with the bad, like aphids and rodents.

Often we turn to extreme measures to get rid of our four-legged and two-winged “friends.” A friend of mine recently told me that her mom bought a BB gun to use on the squirrels eating her apricots. While I’m not totally convinced she’s up for the task of blowing a squirrel’s brains out (they are kinda cute), I did remember how close I was to reaching for my grandma’s air pistol when I saw a big rat in my blackberry bush. Guarding the fruits of one’s labor can make even a pacifist turn quite violent.

Yet the poison and death route can get more than a little messy, and can sometimes even be toxic for the animals we do want, like Fido or Kitty. So what to do? Are there more natural or safer ways to get rid of the critters that plague our landscapes?

Gophers
Pocket gophers leave a telltale sign of activity—mounds of fresh dirt in garden beds or on lawns. (Remember Caddyshack?) As they tunnel beneath the surface, they can disrupt patches of lawn, pull down small plants into their burrows, and eat the roots of vegetables and ornamentals.

The best way to stop pocket gophers from eating your greens and bulbs is to line the bed or planting area with chicken wire. Dig down one or two feet and line the entire area—making sure there are no holes—with chicken wire. Stabilize sides with wooden posts and then fill in the hole with the soil you’re using.

You’re up against more of a battle with the gophers in already planted areas, like a big lawn. Traps are the most effective way to catch the critters, but you do have to deal with body disposal. There are many animals that prey on gophers—cats, dogs, raccoons, coyotes, hawks, and owls among them. Setting up a barn owl box can encourage these predators to visit your yard. Note that if you do use poison, like strychnine, you can also poison the predator that eats the gopher.

Deer
Deer aren’t a problem for most urban dwellers, but in the country, they’re a serious menace. Even when I lived in Berkeley, California, a fairly developed area, deer could be seen chomping their way through the yards of hillside homes. The best way to prevent deer devastation—and they are hungry and fast eaters—is to plant things that they don’t like. Deer have preferences, and some plants they’ll generally avoid, at least until they get really hungry. You’re often in the clear with plants that are native to your area. Some of my favorite plants that deer consider the Brussels sprout of the plant world are the sages (salvias), California lilac, and yarrow.

But what about edibles? If you want to eat them, so do the deer. The obvious prevention tactic here is a fence, but if you have a large yard, you also have to have a large fenced-in area, not to mention a high one—deer can jump as high as eight feet. Digging a trench around the outside of the fence can also help deter jumping does.

There are also many over-the-counter products, which vary in efficacy. Some release an unpleasant odor and others make plants taste bad. DeerStopper is an organic solution made of eggs, mint, and rosemary that’s supposed to work; you could also try making your own noxious concoction with things like eggs, chilies, mint, and biodegradable soap. Reapply as necessary.

7 readers liked this story.
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07.21.2009
Linda Theseira
Thanks for the advice. However, here in tropical Malaysia there are no coyotes, rabbits, just our pets, our dogs really. I use an organic pesticide like chopped lemongrass and spray through or simply remove by hand all the little white bits, trim off the stems and walla ..... new shoots spring up very fast and I am happy once again.
07.21.2009
Debbiecakes
Great article but what about the rabbits...yes I said rabbits. They are digging up my yard not just in hidden spots but in the middle of the yard. They chewed thru my chain link fence for ease of access. HELP!!!!! I tried moth balls around a hole that a rabbit was digging resently and it worked. He/she hasn't returned to that hole anyway. I have grandkids so the moth balls are really not a good idea:-( Thanks, Debbiecakes
07.11.2009
Thomas Wittman
Great Advise Brie! I also believe the way you do about sustainability and have a non toxic pest control business in the Santa Cruz area called Gophers Limited (www.gopherslimited.com) I have been training schools, farmers, ranchers, vineyard workers and the public about ways to not use poisons fighting vertebrate pests. There are a lot of ideas on my site about different products to use for non violent control as well as the best gopher and mole trapping techniques that are humane. The non target animals that get poisoned are pretty high these days including domestic pets and many wild animals like owls, coyotes etc. I will be in the St Helena area giving a talk with the Hungry Owl Project, a non profit that saves predetary birds that have been poisoned or injured. This will be at the Spring Mountain Winery on July 24. Again see my site for more details and thank you for your wisdom. Thomas Wittman
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