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What Are The Little Bugs on My Euonymus Plant

Updated: November 15, 2022

Euonymus plants are a popular choice for gardeners due to their vibrant foliage and easy-to-care nature. However, sometimes you may notice small bugs crawling on your Euonymus plant. These little bugs can be concerning as they can damage the plant and spread to other plants in your garden. In this article, we will discuss what these little bugs are and how to get rid of them.

Identification of the Bugs

The bugs on your Euonymus plant are most likely Euonymus scale insects (Unaspis euonymi). These insects are tiny, about 1/10 inch long, and have a brownish-grey color. They attach themselves to the underside of leaves and stems where they feed on the sap of the plant. Over time, they can cause leaves to yellow and drop off, stunting growth, and weakening the plant.

How to Get Rid of Euonymus Scale Insects

It’s important to get rid of Euonymus scale insects as soon as possible because they can reproduce quickly, causing a severe infestation that is difficult to control. Here are some ways to get rid of Euonymus scale insects:

1. Prune Infested Branches

If you notice that only a few branches are infested with scale insects, consider pruning them off. This will prevent the insects from spreading to other parts of the plant and give the plant a chance to recover.

2. Use Horticultural Oil

Horticultural oil is a safe and effective way to control scale insects on Euonymus plants. The oil works by suffocating the insects and preventing them from feeding on the sap of the plant. You can buy horticultural oil at your local garden center or online. Follow the instructions on the label carefully when using it.

3. Use Insecticidal Soap

Insecticidal soap is another safe and effective way to control Euonymus scale insects. The soap works by penetrating the insect’s protective coating, causing it to dehydrate and die. You can buy insecticidal soap at your local garden center or online. Follow the instructions on the label carefully when using it.

4. Use Systemic Insecticides

If the infestation is severe, you may need to use systemic insecticides. These are insecticides that are absorbed by the plant and travel throughout its system, killing the insects that feed on it. However, systemic insecticides are not recommended for use in vegetable gardens or where pollinators may be present.

FAQ

Are Euonymus scale insects harmful to humans?

No, Euonymus scale insects are not harmful to humans.

Can Euonymus scale insects spread to other plants?

Yes, Euonymus scale insects can spread to other plants in your garden.

What is the best time of year to treat Euonymus scale insects?

The best time to treat Euonymus scale insects is in the spring or fall when they are most vulnerable.

Can I prevent Euonymus scale insects from infesting my plant?

Yes, you can prevent Euonymus scale insects from infesting your plant by keeping it healthy and well-watered, pruning regularly, and inspecting it regularly for signs of infestation.

In conclusion, Euonymus scale insects can be a nuisance for gardeners, but with the right treatment and prevention methods, you can keep your plants healthy and free from these little bugs. Remember to act quickly if you notice an infestation and follow the instructions on any treatments carefully.