calbayarea(9 SF Bay/Fremont)March 20, 2014

I was mixing in some compost to one of my raised beds and found this guy about six inches or so down. Looked pretty disgusting... unless your a bird. Like to know what it is and if it's a yea or nay. I already assumed it was a nay, and took care of it but I'd like to know for sure.

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That is a grub, the larva of one of the Scarab Beetles. The larger ones become the June Beetles that congregate around lights in June and the smaller ones become the Japanese Beetles.

    Bookmark   March 20, 2014 at 6:53AM
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ken_adrian Adrian MI cold Z5

if you only found one.. throw it on the driveway to feed some bird ...

there is some magic number per square foot of soil ... when they become a problem ...


    Bookmark   March 20, 2014 at 12:45PM
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rhizo_1 (North AL) zone 7

There are a lot more possibilities than just June beetles or Japanese beetles! Lets remember that the original poster is from California where JBs don't live.

Most of the Scarab beetles begin their lives as grubs. The green fruit beetle grub is common to compost piles in California and it might be a very good possibility.

    Bookmark   March 20, 2014 at 1:02PM
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jean001a(Portland OR 7b)

The OP is in San Francisco. Japanese beetles aren't any where in CA, at least, not yet.

    Bookmark   March 21, 2014 at 12:47AM
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Got the same thing down here in SoCal... tons of them in my compost.

So, the big ass teal beetles I see flying around in Summer AREN'T June bugs? But, more likely, green fruit beetles?

Suggestions for control? I did incorporate DE in the pile a few days ago to hopefully kill off SOME of them.


    Bookmark   March 21, 2014 at 4:13PM
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calbayarea(9 SF Bay/Fremont)

Good information. Thanks everyone.

    Bookmark   March 22, 2014 at 1:34AM
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