Chemical burn from Neem—either leaves weren't hardened (terrarium-grown) or concentration too high. Neem is usually safe on butterworts.
Test sprays on a few leaves first. Follow care sheets and Volume 2 DVD.
Good growing!
Jacob Farin
Toothache Tree Decline: Mystery Dieback in Containers—Organic Neem Protocol
Neem Oil Timing for Ginkgo: Start at Leaf Expansion
Battling Japanese Beetles, Slugs, and Rose Curl: Organic Strategies That Work
Organic Control of Japanese Beetles and Slugs on Roses: Traps, Nematodes, and Coffee Grounds
Nepenthes Red/Black Leaves in Terrarium: Soil Breakdown and Overwatering
Hibiscus Buds Not Opening; Daylily Buds Browning: Need More Info
Wilmington NC Centipede Lawn Overrun by Weeds: Organic Rescue
Cold-Hardy Sundews and Butterworts for High-Elevation Pest Control
Mexican Pinguicula Heat Stress and Early Dormancy in Iowa
Pinguicula moctezuma Brown Tips: Likely Seasonal Dormancy, Not Disease
Sarracenia Deformed New Growth: High Mineral Water and Aphids
Pinguicula 'Florian' and 'Esseriana': Light, Dormancy, and Propagation Speed
Using Sulfur Fungicide for Sarracenia Winter Dormancy (Cooler Method)
Normal Leaf Aging and Water Quality for Young Nepenthes ventricosa
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