What's eating my whorled milkweed?

Whorled milkweed (Asclepias verticillata) has narrow leaves less favored by some feeders, but oleander aphids still colonize stems reliably. Monarch caterpillars use it as a host, especially in the Great Plains. Milkweed bugs target seed pods in late season. Its compact form means aphid colonies can overwhelm a small plant quickly.

Golden-yellow clusters along wiry stems; honeydew drip stunts flower and seed development on smaller plants Apply insecticidal soap spray or strong water jets; repeat weekly; avoid broad-spectrum pesticides on this pollinator plant

Needle-like leaves eaten; entire clumps can be defoliated in the Midwest during peak migration No control — ecologically valuable. Plant in drifts of 10+ plants so caterpillar pressure is distributed across the colony

Red-and-black true bugs pierce seed pods; reduces viable seed set and natural reseeding Hand-pick; collect seed pods before bugs peak in late summer if seed saving is a goal