ACORN WEEVIL FULL
The larvae will hatch and eat all the nut meat, growing to their full pre-adult size. Once they’ve drilled through the husk of the acorn, they’ll lay a single egg inside. It’s not just the size and shape of their snouts that enable them to do this their mandibles (chewing mouthparts) are on the tip of their snout. Their impressive snouts can be as long, or even longer, than their body length.Īround mid-summer, the females use these nifty schnozzles to drill into developing acorns. Theyware tiny beetles, only one-quarter to three-eighths of an inch long. Each species specializes in a different type of nut, but they lead similar lives.Īdult acorn weevils emerge in early to mid-summer. Let’s learn why.īacking up a bit, the acorn weevil is in the Genus Curculio: “Nut and Acorn Weevils.” There are approximately 30 species of nut and acorn weevils in North America. If you want to gather acorns for crafts, wait until after the first couple of freezes and you’ll get “bug free” acorns.
Unless you are planning on gathering acorns for sale as seeds, there’s no reason to have any concerns about acorn weevils whatsoever. Acorn weevils don’t cause any damage to the trees themselves. Let’s get a couple “need to know” facts out of the way – while acorn weevil larvae do kill the single acorn they feed on, management of these weevils is not practical, and most acorns will survive. My, what a big nose you have! Meet the acorn weevil ( Curculio glandium). Acorn Weevil (Curculio glandium) Photo by Christy
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