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How To Get Rid of Japanese Beetles? 5 Best Methods That Work!

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Have you ever noticed little green beetles eating away at your garden or crops? Those are Japanese beetles, and they are tiny bugs that can cause big problems for your plants.

Have you noticed little nibbles and holes in your plants? Do you find yourself discovering these tiny little beetles frequently? Are you struggling with trying to find a way to get rid of them?

You’re not alone and there are a large amount of ways on How To Get Rid of Japanese Beetles.

Japanese beetles aren’t picky when it comes to what plants they feed on. They can feed on anything from roses to different beans and grapes. Their range of plants that they prey on is so wide that it ranges over 300 species of plant!

In fact, Japanese beetles are known to cause massive amounts of damage to crops every year. They typically are mostly a problem in the midwestern and eastern parts of the united states, and typically thrive in the summer months.

There are many ways to get rid of Japanese beetles. 

How To Get Rid of Japanese Beetles

What You’ll Need

1. For the first method which we’ll call the “jar method”, all you will need is the following

  • Dish Soap (any kind, and you’ll only need a few drops)
  • Water (2-3 cups should be fine)
  • A Jar

2. Another method can just be called the “vacuum method,” and for the vacuum method all you’re going to need is

  • A hand vacuum or car vacuum (that’s really it!)

​These methods are particularly easy if you don’t have a ton of crops to worry about, and don’t mind getting pretty hands on. It is, however, not a permeant solution, and while the beetles on your plants will die, it won’t prevent more beetles from coming back.

3. A common way to deal with beetles involves insecticides. The “insecticide method” involves purchasing the following:

  • Any garden spray containing either insecticidal soap or neem. Neem is sprayed on plants to prevent pests from eating them at all, and have been found to be incredibly useful.
How To Get Rid of Japanese Beetles

4. Finally, there is the “trap method” which involves

  • A beetle trap
  • A pheromone or floral lure

Beetle traps are very hands off, and are quite effective.

All of the methods below and more information on Japanese Beetles can be seen in this tutorial from the University of Maine.​

How to do The Handpicking Method

One solution requires absolutely no materials- simply picking the bugs from your plants by hand is super effective if you don’t have that many plants or beetles and requires no prep work at all. Of course, you have to be pretty comfortable around bugs.

How to Do the Jar Method

  1. Get a Jar and fill it with water. The amount of water you’ll need will depend on the number of beetles you have on your plants.
  2. Put a few drops of dishwashing liquid into the water. What this does is it breaks up the surface tension of the water, and it’ll cause the beetles to drown.
  3. Take the jar, and with the rim of the jar, scrape the beetles off your precious plants.

The jar method is a great way to get beetles off of individual plants, especially roses. However, it’s crucial to note that some beetles may fly back and out so if you’re super squeamish with bugs, this method might not be the one for you.

The jar method also doesn’t prevent new beetles from coming to eat your plants, so it’s not a great method if this problem is frequent or severe.

The Vacuum Method

  1. Get a small, cordless vacuum.
  2. Vacuum up the beetles. This will suck them into the chamber and get them off of your plants.

Gardeners have attested to the fact that this is a fun way to pick up beetles if you have children interested in bugs or gardening.

This method is also good for Roses and individual plants and is less likely to cause the beetles to fly back towards you.  Like the Jar method, the vacuum method does not prevent future infestations.

The Insecticide Method

  1. This is a simple, one step method, that involves taking your insecticide of choice and simply spraying the plants.

If you have a beetle problem on your roses, this method will not work, and you would be better off using another type of beetle eradicating method.

However, this method is very effective for keeping beetles off your plants, which the first two methods don’t do much to prevent except for eradicating the existing problem.

The Trap Method

Many people recommend traps, but they have to be placed properly. It’s also crucial to note that the pheromone lures only attract male beetles, and the floral lures attract both.

  1. Set up your trap at least 50 feet away from your plants. Beetles can be clumsy fliers, and since the traps attract them, putting a trap too close to your crops can actually cause more of a beetle problem as they are prone to missing the trap.
  2. Check the trap every couple of days, and clean out the trap once it gets full.

The trap method is incredibly effective, but Pros recommend you put them far enough away from your plants that the beetles don’t get lured into your plants.

The trap method is incredibly effective, but Pros recommend you put them far enough away from your plants that the beetles don’t get lured into your plants.


Whether you are growing a few plants, have a full garden, or even a farm, these little beetles can cause big damage. We get it, and sometimes it’s hard to know what you should do.

Japanese beetles can be incredibly troublesome, and there’s something very disheartening about seeing your heard work be eaten away by pests. These solutions can help alleviate the problem and save yourself time and money on your garden.

If you liked this article, let us know in the comments, and let us know if these methods worked for you!

Recommended Products

1. Mountain Falls Ultra Concentrated Clean Scent Dishwashing Liquid

2. Car Vacuum Cleaner High Power DC ​​12v Portable Handheld

We Gathered Information From:

“Japanese Beetles in Yards and Gardens.” UMN Extension,

Old Farmer’s Almanac. “Japanese Beetles.” Old Farmer’s Almanac, 2018,

The University of Maine, director. How to Get Rid of Japanese Beetles. YouTube, YouTube, 29 July 2010