description Water Hyacinth Grasshopper (Paulinia acuminata) Overview
Paulinia acuminata is a semiaquatic South American grasshopper in the family Acrididae. It feeds on floating aquatic plants, especially water ferns and water hyacinth, and can move across vegetation at the water's surface. Because of this specialized diet, it has been introduced in some regions as a biological control organism intended to reduce invasive water-hyacinth growth, although establishment and effectiveness vary by environment.
help Water Hyacinth Grasshopper (Paulinia acuminata) FAQ
What unique environment does the Water Hyacinth Grasshopper live in?
Paulinia acuminata is a semiaquatic insect that lives primarily on the surface of freshwater lakes and slow-moving rivers. It uses its long hind legs to move across floating aquatic vegetation at the water's surface.
What is the primary diet of the Paulinia acuminata grasshopper?
This specialized feeder consumes floating aquatic plants, with a particular preference for water hyacinth and water ferns. It relies almost entirely on these invasive plants for both food and shelter from predators.
Has the Water Hyacinth Grasshopper been used for biological control?
Yes, because of its appetite for invasive aquatic plants, it has been introduced to regions outside of South America to help control water hyacinth infestations. This method is often preferred over chemical herbicides to protect native aquatic ecosystems.
Where is the Water Hyacinth Grasshopper naturally native?
The grasshopper is naturally native to freshwater habitats in South America. From there, it has been exported to other continents, like Africa and Asia, as a management tool for choking waterways.
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