Vermiculture Pest Control: Reasons For Insect Pests In Worm Bins

Image by Caffe Vita

By Kristi Waterworth

Your worm bin is teeming with life and things are going really well for your vermicomposting project — that is, until you notice uninvited creatures crawling around in the bedding. Pests and bugs in vermicompost are a common problem, but these worm bin pests can be eliminated by manipulating the environment to make it less friendly to them.

Vermiculture Insects and Pests

There are several types of visitors to a worm bin. Some are highly compatible with worms and help to break down foods, but others may pose a serious threat to your worms. Knowing the insect pests in worm bins can help you better manage your vermiculture pest control better.


Sowbugs and Springtails – These are common isopods that like the same sort of conditions that make your worms happy. They’re also excellent decomposers. If silver, pill-shaped sowbugs or white, c-shaped springtails appear in your worm bin, it’s nothing to worry about. In fact, they can help the worms with the work.

Flies – Flies are also harmless, but are usually considered undesirable by humans because of their propensity to carry disease and hang around garbage. In this case, they may be helpful allies in the decomposition process, but depending on the location of your worm farm, might need to be controlled.

Make sure to only feed your worms fresh scraps, cut the food into very small pieces to help the worms eat faster, feed a wide variety of food and keep the worm bin moist, but not wet. Layering a sheet of newspaper on top of your worms’ bedding will keep the flies out of the bin. If the flies start congregating on the paper, change it frequently to eliminate them; severe fly problems may require a complete change of bedding to destroy eggs and larvae.

Ants Ants can be a pain for vermicomposters – these tiny, industrious creatures rob food from your worm bins and may attack worms if times are tough enough. Move your worm bin to a different location and surround it with a moat of water to prevent ants from entering – they are not capable of crossing water.

Centipedes Centipedes may attack and kill your worms, so if you see these nasty creatures in your vermicomposter, pick them out and destroy them. Make sure to wear gloves, since some species pack a mean bite.

Mites Mites are bad news; there’s no delicate way to put it. These pests feed on worms and can destroy your composting project in no time flat. If you notice food that’s mite-covered, remove it right away and place a slice of bread on the surface of the bedding. Remove the bread when it’s covered in mites and replace with another to trap more mites. Reducing the moisture of the bedding can make your worm bed uncomfortable for these tiny pests.

Print This Article
This article was last updated on
Did you find this helpful?
Share it with your friends!

Additional Help & Information

Didn't find the answer to your question? Ask one of our friendly gardening experts.

Do you know anything about gardening? Help answer someone's gardening question.

Read more articles about Vermicomposting.

Search for more information

Use the search box below to find more gardening information on Gardening Know How: