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Twisted Nepenthes New Leaves: Thrips Damage and Treatment Options

stunted growth

more stunted growth

Brad in New England moved six Nepenthes outdoors for summer (75–85°F days, cool nights, humid). Terminal leaves on all but one plant are coiled/twisted before opening.

Diagnosis: Thrips

Jeff Dallas identified thrips—tiny, slender, sap-sucking insects common in summer, often flying in from crops. Hard to see without a hand lens.

Effective Controls

Spinosad: Biological, widely available at garden centers.
Acephate (Orthene): Systemic, longer residual (30 days). Usually mail-order powder.

Do NOT use imidacloprid (Bayer products)—thrips are immune.

Follow label directions. Report back on results.

Good Growing!
Jeff Dallas
Sarracenia Northwest
www.growcarnivorousplants.com

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