Posts Tagged ‘leaf miner’

Unusual Leaf Miner

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More typical leaf miner “trails” look like the ones above in a catalpa leaf.

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 Obviously, this poison ivy plant stood out with such an unusual leaf miner design.

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A leaf miner is the larva of an insect that lives and develops inside a leaf. This type of mine is called a “blotch mine.” Mornings it looked like it had condensation in the mine, that wasn’t there in the evenings.

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If you look close, you can see a tiny larva.

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I was actually able to easily identify it online. It’s a poison ivy leaf miner (Cameraria guttifinitella).

The cause of the dark spots or the long crease of the upper surface remain a mystery.

Leaf Miner

(I’m BACK!!! Finally. It turned out my blog site problem was my browser. I am of the over-60 club and didn’t grow up with computers. They still intimate me on certain things. Anyway, I am celebrating today!!!)

———-moths

Leaf miner patterns on leaves always fascinate me — how could a “critter” that small even exists?

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The larvae of leaf miners feed on the cells inside the leaf, leaving a “trail” as they go. Feeding in the leaf protects them from predators.

The leaf above is off a lilac bush that I found recently.

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I photographed this cottonwood leaf in August.  If you look close, you can see where a tunnel started in the lower left side of the picture. Then you can follow it as the larva ate and grew. Leaf miners can be larvae of moths, sawfies and flies.