Definition of leaf miner in English:

leaf miner

Syllabification: leaf min·er

noun

  • A small fly, moth, beetle, or sawfly whose larvae burrow between the two surfaces of a leaf.
    More example sentences
    • They help to repel leaf miner moths and some gardeners even find them effective against grasshoppers.
    • This damage has been caused by the grubs of the azalea leaf miner and usually occurs on indoor plants in autumn and winter.
    • Dark blotches and tunnels in the leaves of beet greens, spinach, and Swiss chard are the work of the spinach leaf miner.

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