The Colorado potato beetle, scientific name Leptinotarsa decemlineata (Say), is a leaf beetle which invades and destroys potato crops. Adults are typically 3/8 inch (10 mm) long, have a yellowish color, dark orange head and ten black vertical stripes on its back.
There are few successful methods that work well to eradicate the potato beetle. They all necessitate the gardener to keep an eye in the garden and to ensure that they act quickly as soon as they discover any beetles. as soon as evidence of beetles is discovered.
Firstly you may apply Neem oil as needed on the crop so that they drop off the plant. You can also hand hand-pick all beetles, their larvae and eggs and kill them by placing them into a bucket of soapy water. You can also use a vacuum to remove the beetles, eggs and larvae. You may find special bug vacuum cleaners in your hardware store which are suited to this.
There are also many methods you can use to ensure that your potato crop doesn’t get infested with these pests. It is best to combine these methods if you have had a problem with these pests.
Firstly, crop rotation is a proven method which actually works. Don’t grow your potatoes in the exact same spot year after year. Since adults burrow into the soil over Winter, they will emerge again in Summer. They will pick a potato plant and begin reproducing. By rotating your crop, there will be no adults in the soil and you’ll ensure that your crop lasts for a while.
You can also use floating row covers to protect the tops of potato plants. The fabric allows air and light through but protects the plants from the nasty beetles.
Practice companion planting, as there are several plants which repel the beetle. Common varieties are catnip, sage or Tansy.
Use mulch as a base. It not only provides beneficial nutrition and water for the plant, it creates an environment for the predators of the beetle such as lady bugs and green lacewings. You can also plant varieties of potato that are resistant to the bug, such as Russet Burbank.
You can indeed control the population of Potato Beetles by putting a few simple rules in action which include rotating the crop, mulching, companion planting and using plants that are resistant to the bug. This nasty bug is detrimental to the potato farmer and is a costly exercise to eradicate them commercially.




