Marigold Extract Has Repelled Ticks in Lab Trials
Researchers demonstrated that Tagetes erecta extract inhibits tick activity, though clinical validation remains pending.
Updated on Sept. 26, 2026 in Botany
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A research team has developed a topical cream using Tagetes erecta, or African marigold, flowers that demonstrated significant anti-tick properties in laboratory settings. This research-stage development relies on plant-based extracts to address issues with current synthetic acaricides.
Why it matters
The development seeks to address widespread tick resistance and environmental concerns associated with conventional synthetic acaricides. By targeting tick-specific enzymes and proteins, these plant-derived compounds offer a potential pathway for next-generation pest control.
The extract achieved 61.56% inhibition of the enzyme acetylcholinesterase at a concentration of 1000 µg/mL. Computational docking identified Nonylamine N, N-di(allyl) with a docking energy of -9.29 kcal/mol, significantly higher than the -6.53 kcal/mol measured for the constituent Yangambin.
The players
Haemaphysalis bispinosa
A tick species commonly targeted in acaricide research due to its status as a significant livestock pest.
Tagetes erecta
Also known as the African marigold, this plant is being investigated for its bioactive floral extracts.
The details
The cream functions by inhibiting acetylcholinesterase, an enzyme critical to the nervous system, and by potentially disrupting the function of the salivary protein BSAP1. Researchers utilized molecular dynamics simulations—a method to model the physical movements of atoms and molecules—to assess the stability of the BSAP1-Yangambin complex over a 100 ns duration. Efficacy against the tick species Haemaphysalis bispinosa was verified using three independent biological replicates.
Timeline
Repellency against larval and adult ticks was observed over a 6-h observation period.
Molecular dynamics simulations for the protein-ligand complex lasted 100 ns.
The Tech Race
This research follows the documented trend of screening plant secondary metabolites to create viable alternatives to conventional synthetic acaricides. It specifically adds to the body of work mapping plant-derived compounds against tick-specific salivary proteins like BSAP1.
This technology is currently in the research phase and is not yet available as a commercial consumer product. Future practical application will depend on successful functional demonstrations of the protein-binding mechanisms described in the current laboratory findings.
The takeaway
The study establishes a clear quantitative baseline for using African marigold extracts to disrupt tick nervous system functions. Future observers should watch for functional demonstrations of the BSAP1 protein interaction to see if these computational predictions hold up in live biological testing.
Further reading
For more research on how plant compounds are being evaluated for pest control, see our collection of Botany reports.
More information
Read the complete peer-reviewed research article for detailed methodology and chemical docking data.
Source note: This article includes information reported by Nature.
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