Willow
Pests and diseases

Willow species are hosts to more than a hundred aphid species, belonging to Chaitophorus and other genera, forming large colonies to feed on plant juices, on the underside of leaves in particular. Corythucha elegans, the willow lace bug, is a bug species in the family Tingidae found on willows in North America. Rhabdophaga rosaria is a type of gall found on willows.

Rust, caused by fungi of genus Melampsora, is known to damage leaves of willows, covering them with orange spots.
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