Arborvitae Leaf Miner
Arborvitae Leaf Miner
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The arborvitae leaf miner can cause severe foliage browning.
The insect overwinters as a larva inside the mined out foliage. The adult moths lay eggs during late June and early July.
The larvae mine out the foliage causing it to turn brown. The injury can be identified by holding foliage up to strong light. The mined out area will appear light or translucent. The adult emergence holes can also be seen.
Pesticides labeled for this problem are Orthene or Diazinon.
Visuals associated with this text.
Visual title - Visual size | Visual title - Visual size |
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Arborvitae leaf miner - 43K | Arborvitae leafminer damage - 48K |
Arborvitae leafminer damage larva - 46K | Arborvitae leafminer, damaged shoot - 38K |