Verbena leaf miner makes blotches along the leaf margins as it mines out the leaves. Pick off and destroy infested leaves. No chemical control is listed. Greenhouse whitefly infests and feeds on verbena causing bronzed leaves.
Some varieties are more susceptible than others.
Infested garden plants should not be brought into the house for winter bloom. They will be controlled with Sevin or rotenone. Mites cause bronzing of the foliage and loss of green color. This information is for educational purposes only. References to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned.