Preventing and Banishing the Colorado Potato Beetle in Vegetable Gardens
What is the Colorado Potato Beetle? This species of beetle was first recognized as a pest in Colorado potato crops in 1859. It has since traveled East and throughout the country. Today, you will find them to usually begin in zucchini and squash gardens, but quickly move to everything else.
How will you know if you have a Colorado Potato Beetle problem in your garden? You will see holes in the foliage and their bright orange egg clusters. The egg clusters are in 10-30 and will be on the under side of the leaf.
To remove the egg clusters, use a piece of folded duct tape, and dispose immediately. Eggs will hatch within two weeks, move around the plants while eating the leaves. It’s imperative to remove and dispose of these clusters ASAP before they hatch because it’s the best preventative measure for this bug problem in your garden.
To treat them once they hatch, or as adults, the best would be an organic product with Spinosad, which will also kill other insect infestations. We recommend the Spinosad “Green” label Spinosad Soap. It not only has Spinosad, but it also contains an insecticidal soap, which will knock out the Colorado Potato Beetle in minutes to die on the ground. We do want to mention, however, that using any product with soap will need to be applied in the evening during our hot months, and washed of off in the mornings. The reasons are because if left on the foliage of your plant in the heat/summer, your plant can burn. Another reason to apply in the evening and wash it off in the morning is to reduce any risk to the pollinators that are essential visitors to your garden.
However, resistance to pesticides can become an issue. If you notice the insecticide you are using becomes less effective, rotate products to increase the effectivities. We recommend to always use a Spreader Sticker to help the product “stick.” For other product recommendations to battle the Colorado Potato Beetle, or any other insect problem your garden is facing, visit us in our Plant Health Care Room!









