About the Colorado Potato Beetle:
Organic Methods for Getting Rid of Colorado Potato Beetle:
There are a few methods that work well against potato beetle. They all require the gardener to pay close attention to what is happening in the garden, and to act quickly, as soon as evidence of beetles is discovered. Try any or all of the following:
- Apply neem oil as needed.
- Hand pick beetles, larvae, and eggs and throw them in a bucket of soapy water to kill them.
- Use a vacuum to remove beetles, larvae, and eggs. There are special "bug vacs" for garden use, but honestly, a handheld "Duster Buster" type vacuum also works well.
Protecting Plants from Colorado Potato Beetle:
There are several things you can do to protect your crop from Colorado potato beetles. It's best to use a few of them together, especially if you've had a problem with potato beetles in the past.
- Crop Rotation
Don't grow potatoes in the same spot year after year. Since the adults overwinter in the soil of the previous years' potato patch, all you're doing if you plant in the same spot again next year is giving the adults convenient access to your plants. They'll pick a potato plant, find a mate, and go about laying eggs. If they're going to try to devour your crop, at least make them work for it a little!
- Floating Row Covers
Place floating row covers over the top of your potato plants, and leave it. The special fabric will allow air and light through, but will also foil hungry potato beetles.
- Companion Planting
There are several plants that will deter potato beetle, and it's a good idea to plant at least one or two of them alongside (or even interplanted with) your potatoes. Try planting catnip, tansy, or sage.
- Mulch with Straw.
Mulching heavily with straw not only helps keep the tubers out of the sunlight, but also creates a habitat for predators of Colorado potato beetle: namely, ground beetles, lady bugs, and green lacewings.
- Plant Resistant Early Varieties
Certain varieties of potatoes, such as Russet Burbank, have proven to be resistant to potato beetles. Another good practice is to plant early varieties, since potato beetle damage only gets worse as the season goes on (and all of those eggs hatch!) Consider planting 'Caribe,' 'Norland,' or 'Yukon Gold.'