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Preventing Mosquitoes in Sarracenia purpurea and Water Trays

Growing S. purpurea in water trays—mosquito larvae in pitchers and trays. Zika concerns make control a priority.

Water Trays

Mosquito dunks (Bti)—bacterial larvicide safe for everything except mosquito/fungus gnat larvae. Break up, sprinkle in trays. Replace monthly.

Pitchers of S. purpurea

Leave them alone. The larvae are Wyeomyia smithii—a specialized, non-biting species that lives only in Sarracenia pitchers. They're beneficial: they break down prey, making nutrients available to the plant. Not a disease vector.

Reference: Wyeomyia smithii

Control tray mosquitoes with Bti; let the pitcher inhabitants do their job.

Carnivorous Plants: Regenerating Sarracenia from Rhizome Sections Without Crowns; Seasonal Growth Patterns in Sarracenia: Early, Mid, and Late Season Species; Sarracenia Flava Summer Rest: Normal in Hot Climates; Hydrogen Peroxide as Fungicide on Sarracenia: Untested but Plausible; Transitioning Sarracenia from Terrarium to Outdoors in Texas: Timing and Acclimation; Reed-Like Weeds in Sarracenia rubra wherryii: Remove Completely; Mystery Sarracenia Identified: Likely 'Scarlet Belle' or psittacina × leucophylla Hybrid; Sarracenia minor Stalled After Hail: Repotting Time; Fixing Tissue Culture Sarracenia psittacina Growth Issues; Sooty Mold on Sarracenia and Dionaea: Causes and Prevention

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