Best Gracillariid
Horse-chestnut leaf miner is the common name for Cameraria ohridella, a small leaf-mining moth in the family Gracillariidae. It was first observed near Lake Ohrid in the Balkans in 1984 and formally described as a new species by Deschka and Dimić in 1986. Its larvae feed within the leaves of horse-c...
Why this score?
Highly visible invasive leaf miner damaging horse-chestnut trees; scientific interest outweighed by strong public and horticultural dislike.
Scoring methodology
Citrus leafminer is the moth species Phyllocnistis citrella in the family Gracillariidae. The species was described from Kolkata, India, in 1856, and its larvae feed inside young citrus leaves, creating winding mines that can curl leaves and retard the growth of young trees. It is a widespread agric...
Why this score?
Notorious citrus pest with global management attention; small size and crop damage dominate consensus signals.
Scoring methodology
