Leaf Miner Fly larvae burrow into and between layers of plant tissue, blemishing foliage and compromising plant health.
The tiny larvae of Leaf Miners tunnel their way between the top and bottom layers of leaves, and sometimes inside stems and roots, too. The evidence of their presence is usually spotted before the actual perpetrator. Leaves turn brown and thin in the areas where the tissue mining has occurred. Adults are less frequently seen.
Species tend to be plant-specific, feeding only on one type of plant even in the presence of other suitable food sources. Knowing the name of the affected plant can sometimes aid in identifying which type of Leaf Miner Fly larvae are feeding on it. There are many species that have not been studied, however, so more detailed identification may not be possible.
Scientific Name: Various spp.
Fly or Mosquito
Size (Adult; Length): 1mm to 5mm (0.04in to 0.20in)
Note: An insect's reach is not limited by lines drawn on a map and therefore species may appear in areas, regions and/or states beyond those listed above as they are driven by environmental factors (such as climate change), available food supplies and mating patterns. Grayed-out selections indicate that the subject in question has not been reported in that particular territory. U.S. states and Canadian provinces / territories are clickable to their respective bug listings.