A grower spotted 3–4 barely visible white bugs on the newest leaf of a N. ventricosa and asked for the best insecticide.
Treat immediately with a pyrethrin spray (available at garden centers; Safer makes a good ready-to-use solution). Apply liberally per manufacturer directions; repeat in 7 days. If pests persist after 2 weeks, a systemic insecticide may be needed, but topical treatment is safer for home use.
Happy growing!
Jacob Farin
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