Updated: June 27, 2023

Introduction

Hydrangeas are beautiful flowering plants that add a touch of elegance to any garden or landscape. However, these plants can sometimes attract unwanted pests, such as slaters. Slaters, also known as woodlice or pill bugs, are small crustaceans that are often found in damp and moist areas. They can cause damage to hydrangeas by feeding on the leaves and stems. In this article, we will discuss effective methods to get rid of slaters on hydrangeas plants.

Identifying Slaters

Before we dive into the methods to eliminate slaters from hydrangeas, it is crucial to correctly identify them. Slaters are small, oval-shaped creatures that are usually gray or brown in color. They have segmented bodies and multiple pairs of legs. When disturbed, they roll up into a tight ball for protection.

Natural Methods to Eliminate Slaters

If you prefer using natural methods, there are several options available to control and eliminate slaters from your hydrangeas plants:

1. Remove Hiding Places

Slaters love hiding in dark and damp areas. To discourage their presence in your garden, remove any debris, rocks, or logs near your hydrangea plants. This will reduce their hiding spots and make your garden less attractive to them.

2. Provide Proper Drainage

Slaters thrive in moist environments. To discourage their population growth, ensure that your hydrangeas have proper drainage. Avoid overwatering the plants, as this can create an inviting environment for slaters. Consider improving the soil drainage by adding organic matter or creating raised beds.

3. Use Diatomaceous Earth

Diatomaceous earth is a natural powder made from fossilized remains of diatoms. It is effective against various garden pests, including slaters. Sprinkle a thin layer of diatomaceous earth around the base of your hydrangeas to create a barrier that will dehydrate and kill the slaters.

4. Introduce Natural Predators

Some beneficial insects, such as ground beetles and centipedes, feed on slaters. By introducing these predators into your garden, you can naturally control the slater population. Consider planting companion plants that attract these beneficial insects or create suitable habitats for them.

Chemical Methods to Eliminate Slaters

If the natural methods mentioned above do not provide satisfactory results, you may consider using chemical methods to control slaters on your hydrangeas. However, it is important to use these methods with caution and follow the instructions provided by the manufacturer. Here are a few chemical options available:

1. Insecticidal Soap

Insecticidal soaps are effective against soft-bodied pests, including slaters. These soaps work by suffocating the pests upon contact. Dilute the insecticidal soap according to the instructions on the packaging and spray it directly on the slaters and affected areas of your hydrangeas. Repeat the treatment as necessary.

2. Pyrethrin-Based Insecticides

Pyrethrin-based insecticides are derived from chrysanthemum flowers and are considered relatively safe for use on plants. These insecticides are effective against a wide range of garden pests, including slaters. Follow the instructions provided by the manufacturer to ensure proper application and safety precautions.

3. Carbaryl-Based Insecticides

Carbaryl-based insecticides, commonly known as Sevin, are another option to control slaters on hydrangeas. These insecticides work by disrupting the pests’ nervous system, leading to their death. Always read and follow the instructions on the label carefully when using carbaryl-based products.

Prevention is Key

While it is essential to know how to eliminate slaters from your hydrangeas, prevention is always the best approach. Here are a few tips to prevent slaters from infesting your plants:

  • Regularly inspect your hydrangeas for signs of slater infestation, such as chewed leaves or rolled-up pests.
  • Maintain good garden hygiene by removing fallen leaves and debris regularly.
  • Avoid overwatering your plants and ensure proper drainage.
  • Create a barrier around your hydrangeas using diatomaceous earth or crushed eggshells to deter slaters.

Conclusion

Slaters can be a nuisance for hydrangea plant owners, but with the right methods, they can be effectively controlled and eliminated. Natural methods such as removing hiding places and providing proper drainage are great options. If these methods do not work, chemical solutions like insecticidal soaps, pyrethrin-based insecticides, or carbaryl-based insecticides can be considered. Remember to always read and follow the instructions provided by the manufacturer when using chemical methods. With a combination of prevention strategies and effective control measures, you can ensure the health and beauty of your hydrangeas for years to come.