Data from: Release and establishment of the weevil Mecinus janthiniformis for biological control of Dalmatian toadflax in southern California
<p>We monitored populations of the stem weevil, <em>Mecinus janthiniformis</em>, the invasive alien weed Dalmatian toadflax (<em>Linaria dalmatica</em>) and other vegetation to document the impact of using <em>M. janthiniformis</em> as a biological control agent of <em>L. dalmatica</em>.  Weevils were released in 2008 …