What's eating my xanthosoma violaceum?

Xanthosoma violaceum (blue taro / violet-stemmed taro) grown as an edible crop is most troubled by aphids and spider mites on foliage, and by soil pests near the corms. In garden beds, slugs and snails will also attack leaves. The purple stem color helps spot slug slime trails clearly.

Soft insects massed on petioles and leaf undersides; sticky honeydew and yellowing are early warning signs Dislodge with water spray; apply insecticidal soap or dilute neem oil; repeat as needed until clear

Stippling and pale bronzing on leaf surfaces; fine webs on undersides especially in dry weather Mist plants to raise humidity; apply insecticidal soap or neem oil on a 5–7 day schedule

Holes eaten through leaves and damage to young shoots; slime trails visible on the distinctive purple stems Hand-pick at night; set beer traps; apply iron-phosphate pellets around the planting area

Tunnels bored into developing corms underground; entry points allow rot organisms and reduce edible yield Rotate growing site annually; lift corms before peak wireworm activity; use buried bait traps to reduce population