description Alfalfa Weevil Overview
Hypera postica, the alfalfa weevil, is a weevil in the family Curculionidae that feeds on alfalfa, Medicago sativa. Native to the Old World, it was first detected in the United States in Utah in 1904 and later spread through much of the country. Its larvae are important crop pests because they consume leaf tissue during the spring growth period, reducing plant biomass and delaying crop development; the species is therefore a concern for alfalfa growers and forage production. [University of Maryland Extension](https://www.extension.umd.edu/resource/alfalfa-weevil-fs-1096)
help Alfalfa Weevil FAQ
What crop does the alfalfa weevil attack?
The alfalfa weevil, Hypera postica, feeds mainly on alfalfa, whose scientific name is Medicago sativa. Its larvae are especially important crop pests.
Where did the alfalfa weevil originate?
Hypera postica is native to the Old World. It was first detected in the United States in Utah in 1904 before spreading through much of the country.
Which stage of the alfalfa weevil causes crop damage?
The larvae are a major source of damage because they feed on alfalfa foliage. Adults are also present, but larval feeding is especially important to growers.
What family does the alfalfa weevil belong to?
The alfalfa weevil belongs to the family Curculionidae, the true weevil family. Its scientific name is Hypera postica.
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