Updated: July 18, 2023

Monarda, commonly known as bee balm or bergamot, is a beautiful flowering plant that attracts bees, butterflies, and hummingbirds to your garden. It is a popular choice for many gardeners due to its vibrant colors and aromatic foliage. However, like any other plant, Monarda can attract pests, including slaters. Slaters, also known as woodlice or pillbugs, are small crustaceans that can damage the leaves and flowers of your Monarda plant. If you notice slaters on your Monarda plant, here are some effective methods to get rid of them.

Understanding Slaters

Before we delve into the methods of getting rid of slaters on Monarda plants, it is essential to understand their habits and behavior. Slaters are nocturnal pests that thrive in cool and damp environments. They are commonly found in gardens with high levels of moisture and organic matter. Slaters feed on decaying plant material and prefer dark areas such as under rocks, mulch, or leaf litter. They are not harmful to humans or pets but can cause damage to your Monarda plants if left unchecked.

Natural Predators

One of the most effective ways to control slaters is by introducing their natural predators into your garden. Some common predators of slaters include ground beetles, spiders, centipedes, and certain species of birds such as robins and blackbirds. By creating a welcoming environment for these predatory insects and birds, you can naturally control the population of slaters in your garden.

To attract ground beetles and spiders to your garden, provide them with suitable habitats such as rock piles or logs. These insects will feed on slaters and help keep their population in check. Additionally, you can install bird feeders and birdhouses to invite birds that prey on slaters.

Removing Hiding Places

As mentioned earlier, slaters prefer dark and damp areas. By removing their hiding places, you can discourage them from infesting your Monarda plants. Start by clearing away any decaying plant material, such as fallen leaves or rotting wood, from the vicinity of your Monarda plants. This will eliminate potential food sources for slaters and make the area less attractive to them.

Next, inspect your garden for any rocks, mulch, or leaf litter that may provide shelter to slaters. Remove these items and create a clean and open environment around your Monarda plants. By reducing the available hiding places, you can make it harder for slaters to establish themselves in your garden.

Organic Pest Control

If natural predators and habitat modifications are not sufficient to control the slater population on your Monarda plants, there are several organic pest control methods you can try. These methods are safe for both the environment and your plants.

Diatomaceous Earth

Diatomaceous earth is a natural substance made up of fossilized remains of diatoms, a type of algae. It is an effective pest control method that works by dehydrating insects and other arthropods. Sprinkle a thin layer of food-grade diatomaceous earth around the base of your Monarda plants and on the leaves where slaters are present. Reapply after rainfall or watering to maintain its effectiveness.

Beer Traps

Slaters are attracted to the smell of beer, making beer traps an effective means of trapping and eliminating them. Take a shallow container, such as a small dish or jar lid, and bury it in the soil near your Monarda plants. Fill the container with beer up to halfway and leave it overnight. Slaters will be lured into the container by the scent of beer and eventually drown.

Garlic Spray

Garlic has natural insect-repellent properties that can help deter slaters from your Monarda plants. To make a garlic spray, crush several cloves of garlic and steep them in water for 24 hours. Strain the mixture and dilute it with water in a spray bottle. Spray the solution onto the leaves and around the base of your Monarda plants. Reapply every few days or after rainfall to maintain its effectiveness.

Chemical Control

If all else fails and the slater infestation on your Monarda plants becomes severe, you may consider using chemical control methods as a last resort. However, it is important to note that chemical pesticides can harm beneficial insects and disrupt the ecological balance of your garden. Therefore, it is crucial to use them sparingly and follow the instructions provided by the manufacturer.

Before using any chemical pesticide, identify the specific product that targets slaters and is safe to use on Monarda plants. Apply the pesticide according to the instructions, focusing on the areas where slaters are most prevalent. Be sure to wear protective clothing, such as gloves and a mask, while applying chemical pesticides.

Conclusion

Slaters can be a nuisance for gardeners, especially when they infest beautiful plants like Monarda. By understanding their habits and implementing preventive measures, you can effectively control their population without causing harm to your plants or the environment. Try natural predators, remove hiding places, or opt for organic pest control methods before resorting to chemical pesticides. With patience and persistence, you can successfully get rid of slaters on your Monarda plants and enjoy a healthy and thriving garden.