Pests and Diseases forum: Strange bugs in my sub-irrigated planter boxes

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Northern California / Bay Area (Zone 9b)
Aug 26, 2017 6:00 PM CST
Hi all,

I recently was moving some strawberry plants in my sub-irrigated planter boxes and when I dug a small hole about 6" wide and about 8" deep, I found a number of clear / glassy worm-like critters (quite a number of them given the small size of the hole). I removed a few and took a picture of them (attached). Any idea what they are?

I have had a problem with my strawberries being eaten by something, but I thought that they were being eaten by slugs of some kind. I suspect that the root problem might be that my planter boxes are too moist. I'm not sure exactly what to do about that, i.e. I can't really add more drainage; I could water them less often (but the whole point is for them to hold water in the bottom (like a large Earthbox)); or I could potentially change the soil composition. Any thoughts or ideas are appreciated!

Oh, and I live in Northern California.


P.S. - This is my first time posting. Apologies if I have posted to the wrong forum.

Thumb of 2017-08-26/jessesavvy/a1cbb3

Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
Aug 26, 2017 6:37 PM CST

You are in the right forum. They are beetle grubs, I don't know what species though, it's hard to tell from a picture. Here are some pictures of scarab beetle grubs as examples:

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