How to Get Rid of Japanese Beetles: A Complete Guide

Japanese beetles are small but mighty pests that can quickly devastate gardens and landscapes. They’re easily recognizable with their metallic green and bronze bodies and can cause significant damage to leaves, flowers, and fruit trees. If left unchecked, Japanese beetles can multiply quickly and cause severe damage to plants. Fortunately, there are natural solutions to get rid of Japanese beetles. In this article, we’ll discuss various methods for controlling Japanese beetles without harsh chemicals, including organic solutions, beetle traps, manual control, long-term solutions, companion planting, and pesticides as a last resort.

Go Organic

The first and most crucial step in controlling Japanese beetles is to go organic. Organic solutions are not only safer for the environment, but they’re also safer for you and your family. Here are some natural products you can use to repel Japanese beetles:

Neem Oil

Neem oil is a popular and natural insecticide that is derived from the seeds of the neem tree. It’s effective against a wide range of pests, including Japanese beetles. It works by disrupting the insect’s hormonal balance, thereby killing them and preventing them from developing further. Simply mix the neem oil with water and apply it to your plants using a spray bottle or a pump sprayer.

Essential Oils

Essential oils, such as peppermint, garlic, and lemon eucalyptus, are also effective in repelling Japanese beetles. They work by emitting a scent that the beetles find unpleasant. To make a garlic spray, add chopped garlic to water and let it sit overnight. Strain the solution and spray it on your plants. You can also mix peppermint or lemon eucalyptus oil with water and spray it on your plants.

Beetle Traps

Another effective way to get rid of Japanese beetles is by using beetle traps. Beetle traps are designed to lure the beetles using a pheromone and trap them in a pesticide-free manner. There are two types of beetle traps: bag traps and bucket traps.

Japanese Beetle Bag Trap

The Japanese beetle bag trap is a popular option. It’s a simple and effective way to trap large numbers of beetles. Simply hang the bag trap in an open area, away from your plants, and add the pheromone lure inside the trap. The beetles will fly into the bag, unable to escape, and die.

Beetle Bucket Trap

The beetle bucket trap is another type of beetle trap that works well in trapping Japanese beetles. It’s easy to make using a bucket, water, and dish soap. Simply fill the bucket halfway with water and add some soap. The beetles will be attracted to the water and will fall into the bucket and drown.

Manual Control

Manual control involves physically removing the beetles from your plants. While time-consuming, it’s an effective way to get rid of Japanese beetles. Here are two simple ways to control Japanese beetles manually:

Handpicking Beetles

You can handpick the beetles from your plants and place them in a soapy water bath to kill them. The goal is to remove as many beetles as possible before they start mating and lay eggs.

Soapy Water Bath

Fill a bowl with soapy water and place it under your plants. Shake the plant gently to loosen the beetles, and they will fall into the bowl and drown. This method is particularly effective when used in conjunction with handpicking.

Long-Term Solutions

If you’re looking for a long-term solution for Japanese beetle control, there are a few options.

Milky Spore Disease

Milky spore disease is a natural bacterial disease that attacks the grubs of Japanese beetles. It takes several years to establish a population of milky spore bacteria, but once established, it can last for up to 20 years. To apply milky spore powder, spread it evenly over your lawn. It’s important to follow the application instructions carefully, and it can take up to three years to see results.

Nematodes

Nematodes are microscopic worms that live in the soil and kill beetle larvae without harming the environment. They’re most effective when applied to moist soil in the spring or fall.

Companion Planting

Another effective way to get rid of Japanese beetles is through companion planting. Companion planting involves planting beetle-resistant plants alongside your susceptible plants.

Marigolds

Marigolds are a popular choice for companion planting. They exude a scent that repels Japanese beetles and other pests.

Petunias and Chrysanthemums

Petunias and chrysanthemums are also effective in repelling Japanese beetles. They contain a compound called pyrethrum, which acts as a natural insecticide.

Pesticides as a Last Resort

If all else fails, you may need to resort to pesticides to control Japanese beetles. However, pesticides should be used as a last resort, as they can be harmful to the environment and other beneficial insects. If you decide to use pesticides, follow the instructions carefully and use them responsibly.

Conclusion

Japanese beetles can cause significant damage to your garden and landscape, but there are natural solutions to control them. From organic solutions to beetle traps, manual control, long-term solutions, companion planting, and pesticides as a last resort, there are numerous ways to get rid of Japanese beetles and keep them from returning. By taking action to control Japanese beetles, you can protect your plants and enjoy a beautiful, healthy garden.