Growli

Pest identification

What's eating my poke milkweed?

Oleander aphids (Aphis nerii)

Signs: Dense yellow colonies on shoot tips and underside of upper leaves; honeydew and sooty mold accumulation

Control: Blast with water; insecticidal soap spray is effective; time treatments to avoid monarch caterpillar instars

Monarch caterpillars (Danaus plexippus)

Signs: Whole stems stripped of leaves; this species is often used as a secondary host when common milkweed is scarce

Control: No control recommended — deliberate. Supplement with additional milkweed species nearby if plants are fully stripped

Slugs

Signs: Irregular holes and ragged edges on young leaves, especially low on the plant; silvery slime trails on soil

Control: Scatter iron phosphate slug pellets around base; use a beer trap; clear leaf litter that provides daytime shelter

Keep poke milkweed pest-free

Healthy plants resist pests best. Get the basics right:

Poke Milkweed pests — FAQ

What is eating my poke milkweed?

Poke milkweed (Asclepias exaltata), a woodland-edge native, attracts monarch caterpillars and oleander aphids like other milkweeds. Growing in shadier, moister conditions it can also host slugs on young foliage in spring. Aphids are the main nuisance pest; caterpillars are ecologically valuable and should not be controlled.

How do I get rid of oleander aphids (aphis nerii) on poke milkweed?

Dense yellow colonies on shoot tips and underside of upper leaves; honeydew and sooty mold accumulation Blast with water; insecticidal soap spray is effective; time treatments to avoid monarch caterpillar instars

How do I get rid of monarch caterpillars (danaus plexippus) on poke milkweed?

Whole stems stripped of leaves; this species is often used as a secondary host when common milkweed is scarce No control recommended — deliberate. Supplement with additional milkweed species nearby if plants are fully stripped

How do I get rid of slugs on poke milkweed?

Irregular holes and ragged edges on young leaves, especially low on the plant; silvery slime trails on soil Scatter iron phosphate slug pellets around base; use a beer trap; clear leaf litter that provides daytime shelter