How to Get Rid of Scales on Evergreen Plant

Evergreen plants are a great addition to any garden or landscape due to their year-round green foliage. However, scales can be a common problem for evergreen plants. Scales are small insects that feed on plant sap, which can cause damage and even death of the plant if left untreated. In this article, we will discuss how to get rid of scales on evergreen plants.

Identifying Scales on Evergreen Plants

Scales are small, oval-shaped insects that can range in color from white to brown or black. They typically attach themselves to the leaves, stems, or branches of evergreen plants and can be difficult to spot due to their small size. Signs of a scale infestation include yellowing leaves, stunted growth, and a sticky substance known as honeydew.

Treatment Options for Scales on Evergreen Plants

There are several treatment options for scales on evergreen plants, including natural remedies and chemical treatments.

Natural Remedies

One natural remedy for scales is to use neem oil. Neem oil is derived from the neem tree and has insecticidal properties. To use neem oil, mix one tablespoon of neem oil with one gallon of water and spray the solution onto the affected plant. Repeat this process every two weeks until the scales are gone.

Another natural remedy for scales is to use horticultural oil. Horticultural oil is a type of oil that suffocates insects by clogging their breathing pores. To use horticultural oil, mix two tablespoons of oil with one gallon of water and spray the solution onto the affected plant. Repeat this process every two weeks until the scales are gone.

Chemical Treatments

Chemical treatments are another option for getting rid of scales on evergreen plants. One effective chemical treatment is imidacloprid, which is a systemic insecticide. Systemic insecticides are absorbed by the plant and kill insects when they feed on the plant. To use imidacloprid, mix one tablespoon of the chemical with one gallon of water and pour the solution around the base of the affected plant. Repeat this process every six months.

Another chemical treatment for scales is malathion, which is a contact insecticide. Contact insecticides kill insects on contact and are less harmful to beneficial insects than systemic insecticides. To use malathion, mix two tablespoons of the chemical with one gallon of water and spray the solution onto the affected plant. Repeat this process every two weeks until the scales are gone.

Preventing Scales on Evergreen Plants

Prevention is key when it comes to dealing with scales on evergreen plants. One way to prevent scales is to keep your plants healthy. Healthy plants are less likely to attract insects than stressed or weak plants. Make sure your evergreen plants are getting enough water, sunlight, and nutrients.

Another way to prevent scales is to prune your plants regularly. Pruning removes dead or damaged branches, which can attract insects. You should also remove any fallen leaves or debris from around your plants, as this can provide a breeding ground for scales and other insects.

FAQ

Can I use a natural remedy and a chemical treatment together?

No, it is not recommended to mix natural remedies and chemical treatments together. This can be harmful to your plant and may not be effective in getting rid of scales.

Can I use neem oil on any type of evergreen plant?

Yes, neem oil can be used on any type of evergreen plant.

How often should I prune my evergreen plants?

You should prune your evergreen plants once a year, preferably in the early spring or late winter.

In conclusion, scales can be a common problem for evergreen plants, but there are several treatment options available. Natural remedies such as neem oil and horticultural oil can be effective, as well as chemical treatments like imidacloprid and malathion. Prevention is also key in dealing with scales, so make sure your plants are healthy and regularly pruned.