How to Get Rid of Mexican Bean Beetles – Step-by-Step Guide

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If you’re a gardener, then you know the importance of keeping your plants healthy and free of pests. But sometimes, despite your best efforts, pests can still make their way into your garden

One common garden pest is the Mexican bean beetle (MBB). While MBBs aren’t harmful to humans, they can do a lot of damage to plants. In this article, we will learn how to get rid of Mexican bean beetles easily.

How to Get Rid of Mexican Bean Beetles

They feed on the leaves of beans and other plants in the legume family, and their feeding can cause the leaves to turn brown and die.

In severe infestations, MBBs can decimate a crop. So, what can you do if you find MBBs in your garden? In this article, we’ll give you some tips on how to get rid of them.

Step-By-Step Guide: How to Get Rid of Mexican Bean Beetles?

Get Rid of Mexican Bean Beetles

If you have Mexican bean beetles in your garden, don’t despair! While they can be a nuisance, there are a few simple steps you can take to get rid of them.

1. Locate the Source

inspecting plant

First, try to determine where the beetles are coming from. Locate the source & fix it.

2. Remove any Affected Plants 

Remove any Affected Plants

Second, remove any affected plants from your garden. This will help prevent the spread of the beetles to other plants.

3. Methods to Kill Beetles

spray plant

Third, destroy the beetles that are already in your garden. You can do this by hand-picking them off the plants and squishing them.

Or you can use a pesticide designed to kill Mexican bean beetles such as neem oil, spinosad, or pyrethrum. Be sure to follow the instructions on the label carefully.

4. Natural Method

Peppermint Essential Oil

A fourth option is to use an insecticidal soap or neem oil. These natural solutions will kill the beetles without harming your plants.

Another option is to create a trap by cutting a banana in half and placing it upside down on a plate near your plants. The beetles will be attracted to the fruit, and then you can dispose of them however you like.

5. Prevent Future Infestations


Fifth, take steps to prevent future infestations. This may include planting trap crops, such as radishes or nasturtiums, which attract the beetles away from your garden plants.

Or you may want to consider using row covers or netting over your garden to keep the beetles out.

With a little effort, you can get rid of Mexican bean beetles easily.

How to eliminate Mexican bean beetle eggs

If you’re dealing with Mexican bean beetles, the best place to start is by removing their eggs. 

  • You can find these eggs on the underside of leaves, and they’re usually clustered together.
  • To remove them, simply use a cotton swab or your finger to lightly dab them off of the leaf.
  • You can also use a gentle stream of water from a hose to knock them off.

Once you’ve removed the eggs, you’ll need to deal with the adult beetles. These can be more difficult to get rid of, but by following the above-guided method, you will eliminate them easily.

If you are facing a whiteflies issue on your plant, check out this guide on how to remove whiteflies from the plant and what causes whiteflies.

Are Mexican bean beetles poisonous to humans?

No, Mexican bean beetles are not poisonous to humans. However, they can be a nuisance if they infest your garden, and can cause damage to your plants. Be sure to keep an eye out for them and take action to get rid of them if necessary.


If you have a problem with Mexican bean beetles in your garden, there are a few different ways that you can get rid of Mexican bean beetles, and the best method will likely depend on the severity of your infestation.

If you only have a few beetles, you can probably just pick them off by hand. If you have a more serious infestation, you may need to use chemical controls or introduce natural predators into your garden.

Whichever method you choose, make sure to follow the directions carefully to avoid harming other beneficial insects or animals. Also, be diligent and persistent – it may take a little while to get rid of all the beetles, but eventually, you will succeed.


  • Does neem oil work on Mexican bean beetles?

    Neem oil, which is made from neem seeds, is available as an OMRI (Organic Materials Institute) approved pesticide or fungicide. Although it works effectively against Mexican bean beetles, it might also kill beneficial insects in your bean crop.

  • How do you control bean bugs?

    Plant adults and immature stages can be manually selected, then placed in a bucket of soapy water. Remove the clusters of brilliant yellow eggs that have been placed on the undersides of the leaves as well. You can employ Harvest-Guard as a physical defense.

  • How do you prevent bean leaf beetles?

    Getting rid of crop waste and controlling weeds with tillage, burning down herbicides, and replanting residual herbicides can help you manage bean leaf beetles in the best way possible.

    Bean leaf beetle infestations can be managed by maintaining weed-free fields by cultivation or the application of herbicides two to three before planting.