The white line on this aspen leaf is where the larva ate the epidermis layer
the black line is frass
creating a beautiful piece of art. MIKE BOTTINI
This yellow blotch is caused by a leaf miner (visible in the upper middle section) feeding inside the very thin leaf and leaving the leaf cuticle intact. MIKE BOTTINI
The white line on this aspen leaf is where the larva ate the epidermis layer
the black line is frass
creating a beautiful piece of art. MIKE BOTTINI
This yellow blotch is caused by a leaf miner (visible in the upper middle section) feeding inside the very thin leaf and leaving the leaf cuticle intact. MIKE BOTTINI
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