Nepenthes Leaf Damage in High-Desert Enclosures: Thrips Strike Again

A New Mexico grower’s Nepenthes in large tented enclosures (80–90°F day, 70°F night, 50–90% humidity, bright light) developed reddish-brown curling new growth and hard brown scabs on leaves.

Jeff Dallas diagnosed thrips—common, tiny, hard to see. Check with hand lens for slender bugs. Treat with systemic (Bayer 3-in-1) or No-Pest strips in enclosures (very effective, no spray needed). Spraying works too. Link to insecticide podcast provided.