Mealybugs on Corn Plant and Ivy: Identification and Treatment

A teacher moves plants to a classroom for winter and sees white stuff on corn plant and ivy leaves/stems. Unsure if bugs or mildew.

Identification

The "white stuff" with soft cotton-like texture is almost certainly mealybugs—plant pests, not a building issue.

Treatment

Mix 5 parts water, 1 part rubbing alcohol, squirt of dish soap. Thoroughly drench each plant until all surfaces drip. Complete coverage is essential; missed juveniles will reinfest. One thorough treatment usually works.

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Expert advice from Will Creed, Interior Landscaper, Horticultural Help, NYC.