June bugs show up every late spring and start banging into your porch light like they’ve never seen one before. Annoying, sure, but they’re manageable once you know what you’re actually dealing with.
What to grab
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Grubs already in the lawn |
Want to skip the chemicals |
What are June bugs, actually
Also called May beetles — same bug, depends who you ask and when they showed up in your yard. They’re in the scarab family, active late spring into summer, and they’ll chew through leaves and garden plants while they’re around. Not usually catastrophic damage, but enough to notice.
How to tell if that’s what you’ve got
Brown to reddish-brown, hard shiny shell, about an inch long. Clumsy fliers — you’ll see them bumping into porch lights and windows at night, drawn straight to the brightest thing around. The larvae are the part that actually causes damage. Grubs, living underground, chewing on grass and plant roots. If your lawn’s got random dead patches that pull up like a loose carpet, that’s usually grubs, not the adult beetles themselves.
Getting rid of them
Light traps. Bucket of soapy water under a light source at night. They fly toward the light, hit the water, the soap breaks the surface tension so they can’t climb back out. Cheap, low-effort, actually works for adult beetles.
Beneficial nematodes. Microscopic organisms you put into the soil — they hunt down and kill grubs before they mature into adult beetles. Good option if you want to handle it at the larval stage without spraying chemicals on your whole lawn.
Natural predators. Birds eat a lot of these, adults and grubs both. Not something you control directly, but it’s part of why a healthy yard with decent bird activity tends to have fewer issues.
Insecticide, for real infestations. Something labeled specifically for grubs and June beetles handles it if the nematode route isn’t cutting it. Apply to a dry lawn, water it in after, and keep pets and kids off until it’s dried per the label.
Keeping them from coming back
Healthy soil matters more than people think — aerate and fertilize regularly, since compacted, stressed soil is easier for grubs to move through and thrive in. Cut back on unnecessary outdoor lighting at night if adult beetles are the main issue; less light, fewer beetles showing up at your door. And just keep an eye on your plants through the season — catching leaf damage early beats discovering a full grub problem in your lawn months later.
Between the light traps for what’s already flying around and nematodes or grub-specific insecticide for what’s underground, most yards get this under control within a season.