Skip to main content

Spotted lanternflies are invasive and dangerous, but insecticidal soap can help get rid of them – here’s how

How to get rid of spotted lanternflies

A spotted lanternfly
Image used with permission by copyright holder

There are many common garden pests, and some of them can do quite a lot of damage. Although most pests are annoying, the spotted lanternfly has developed a reputation beyond being a mere nuisance. If you’ve heard of them and wondered why spotted lanternflies were so terrible or what you should do if you find one, we have the answers. We’ll even show you how to make your own insecticidal soap to deal with them!

Recommended Videos

Difficulty

Easy

Duration

1 hour

What You Need

  • Bag

  • Alcohol or fire (optional)

  • Vegetable oil

  • Dish soap

  • Water

  • Spray bottle

A spotted lanternfly
Image used with permission by copyright holder

What is a spotted lanternfly?

Spotted lanternflies are highly invasive insects that first appeared in the U.S. in 2014. They have brown top wings, red second wings, and black spots. They’re sap-sucking insects, which leave oozing bite wounds in plants. The wounds are easily infected, and the waste left behind by a spotted lanternfly is a common fuel for fungal infections.

Spotted lanternflies spread quickly, as they will lay eggs on practically anything. When the item the eggs are on is moved, the eggs move with it, spreading the spotted lanternfly farther afield. Although they are most common on the East Coast, they have been steadily spreading west and can now be found in some parts of the central U.S.

A person spraying a pest control solution on some roses
LDprod / Shutterstock

What should you do if you see one?

If you see a spotted lanternfly, here's what to do:

Step 1: Report the sighting to your state’s Department of Agriculture or invasive species tip line.

Many states request photographs of the insects, so taking a picture of the spotted lanternfly is helpful in most cases.

Step 2: Squish the spotted lanternfly or spray it with insecticidal soap.

Step 3: Avoid moving any materials near where you found the spotted lanternfly.

Step 4: Inspect the area carefully for eggs.

Spotted lanternflies lay their eggs in clusters and then cover them with a protective substance that is white at first, then it turns gray or brown.

Step 5: Scrape the eggs off and place them in a bag.

Step 6: Destroy the eggs by adding alcohol to the bag, smashing the eggs, or setting them on fire.

Step 7: Keep a close eye on your garden for any other spotted lanternflies or eggs.

Hand holding a spray bottle
Image used with permission by copyright holder

How to make an insecticidal soap

Insecticidal soap is an easy way to get rid of spotted lanternflies and other pests. Here’s how to make your own:

Step 1: Mix 1 tablespoon of vegetable oil with 1 tablespoon of dish soap.

Step 2: Add the mixture to 1 quart of water, mixing well.

Step 3: Fill a clean spray bottle.

Step 4: Store extra insecticidal soap in a dark, cool place.

Step 5: Spray the insecticidal soap directly onto the spotted lanternfly.

Invasive species can wreak havoc on an ecosystem, and spotted lanternflies are no different. As they spread farther and farther west, it’s important to keep a close eye on your garden. You can protect your garden and the environment by reporting them, squishing them, spraying them, and removing their eggs. It’s a simple process with a big impact!

Cayla Leonard
Cayla Leonard is a writer from North Carolina who is passionate about plants.  She enjoys reading and writing fiction and…
How to get rid of red spider mites in your garden without breaking the bank or the environment
Safe and effective ways to get rid of red spider mites
Predatory mite

It doesn’t matter if you’re a novice or a professional gardener — some garden pests bring all levels of gardeners together because they cause damage in diverse growing environments. Red spider mites are one such pest, as they can be found in most gardens. If these little pests have invaded your garden, then you might be wondering what risks red spider mites pose and how you can get rid of them. This handy guide will answer all your questions so you can keep your garden safe and healthy.

Read more
Can you use garlic as a pesticide? What you need to know
Find out if this tasty kitchen staple can actually fight off pests
Garlic bulbs and cloves

Gardening is one of the best ways to beat stress and get in touch with nature. The problem is that cultivating plants sometimes leads to different kinds of stress: pests. When it comes to effective pest removal, gardeners have plenty of options at their disposal, from simply letting nature run its course to introducing predatory species that can help reduce pest pressure. Many choose to apply insecticides and pesticides, either organic or more heavy-duty chemical solutions. When pest pressure is highest, spraying may be the only option to save the plant. Here's a more unconventional hack: using garlic as a pesticide.

Spraying for bugs doesn’t have to mean handling toxic chemicals. Natural products, such as garlic essential oil, can be helpful tools for dealing with pest pressure in a nontoxic way. If spraying plants with plant juice to save them from hungry bugs sounds like a questionable practice, keep reading. We’ll explore the effectiveness of garlic insecticide and identify what pests garlic spray might help keep away.

Read more
Everything you need to know about how to get rid of ants in the garden
Natural ways to send those ants marching one by one away from your space
A small red ant

Ants are among the most (if not the most) common pests known by homeowners, lawn care experts, and gardeners. You sit down to a nice relaxing evening on the patio with your favorite snacks, and then here come the ants to investigate. They build their hills, swarm around the yard, and cause trouble when they find their way through cracks in your home’s foundation and into the kitchen.

So naturally, it may be concerning when you see an anthill forming in your garden. The strange thing about ants, though, is that they aren’t bad all the time. Before we go over natural pest control remedies and how to get rid of ants in the garden, here are some things to consider.

Read more