Stylosanthes hamata

Stylosanthes hamata and scabra, which are highly productive and nutritious species of tropical pasture legumes, are covered with glandular trlchomes. The trlchomes secrete a viscous secretion that immediately Immobilize larvae of the cattle tick, Boophllus mlcroplus (39). Ticks have a natural tendency to climb plants, and wait for a host animal. The secretion has no repellant properties, so that ticks do not attempt to seek alternative plants. In addition to Immobilizing the larvae, the plants produce an unidentified volatile compound(s) that poison the larvae, within 24 hours. 

Many non-volatile extracts have been studied for their effectiveness against Boophilus sp. Those obtained from legumes plants seem to be particularly promising. Cruz-Vazquez et al. evaluated the tropical species Stylosanthes humilis and S. hamata (Fabaceae) against the larvae of Boophilus microplus in plots experimentally infested [119]. They... 

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