Ugly Black Beetles Are Your Gardening Friends

carabid beetle This beetle is just one of many species which get the name “Common Black Ground Beetle.”

Slug Control: Research has found that carabid beetles (adults and larvae) devour large numbers of smaller slugs.
This beetle was introduced to the United states from Europe.
Black ground beetles live under leaves, old logs, and stones. They can be found in moist woods, fields, and gardens.

They can be seen searching for prey, which includes caterpillars, grubs, other species of beetles, fly maggots and pupae, aphids, weevils, earthworms, slugs, snails and other soft-bodied prey.

Common Black Ground Beetles breed in late Summer. The female lays eggs just below the soil surface. Larvae hatch and spend the Winter in the soil.
In early Spring the larvae begin feeding and then turn into pupae. They come out as adult beetles in the Summer.
Some adults may overwinter as well.

Carabidae beetle Hint: Not All beneficial Beetles are Black.

Ground beetles (Carabidae) are one of the largest and most successful families of beetles in the world. They comprise more than 40,000 named species. More than 30% of species are forest dwellers, the other 70% in general prefer grass lands and gardens, most are flightless and predatory.

Caution Know your garden insects. Many Beetles are Not Your Friend and will damage your Fruit trees, Berry bushes and Fruit producing vines as well as your vegetable garden plants.

Organic strategies for slug control
 * Create undisturbed areas on the edges of your garden to shelter beetles, small mammals and birds.
 * Plant borders densely to create cover for beetles and other insects.
* Go out at dusk and collect and squash slugs. Or, if you don’t want to ‘squash’ them, sprinkle them with a heavy dose of table salt.

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Why is common sense so uncommon?
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13 responses to “Ugly Black Beetles Are Your Gardening Friends

  1. If only we spent as much time getting to know our bettles (or other garden insects) as we did not TV show characters. Though labor intensive, squashing the desctructive critters, is the most effective and specific means of controlling the population. However, our desire for convenience leads to mass killing via pesticides (or even some organic methods) that reduce both the destructive and beneficial creepy-crawlers.

    Liked by 1 person

    • Your right.
      Removal by hand is a sure… well … almost sure way to rid your garden of destructive insects and leaving the beneficial insects to do their job.
      Almost without fail any pesticide, man made or natural kills all insects it comes in contact with.
      I seldom use pesticides of any kind, hehehe, I often share my garden produce with the rabbits and the good and bad bugs and sometimes other critters as well..
      Happy gardening


  2. Thank you, a great information. I have so many of those nice black beetles, and the slugs to go with them, that is when I find these beetles, when I am slug hunting at night in the summer. They do climb my raised beds, but maybe that is because the wood is rough.

    Liked by 1 person

  3. We used to race them across my mother’s tiled kitchen floor in 1950s England!

    Liked by 1 person

  4. I live in the UK, and I am pretty sure these black beetles are the same ones I sometimes find in my house at night time in summer. They probably have come in from open windows.
    Now I won’t be so cross with them:) !

    Liked by 1 person

  5. I was never sure whether to leave them alone or try to get rid of them. Now I know.

    Liked by 1 person

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