Update: A previous version of this story incorrectly called the weevils “invasive” – however they are native to the Mojave Desert.
If you’ve noticed damage to yucca plants or Joshua Trees on your property, it could be due to a native species of weevil that specifically targets our area’s namesake succulent.
The Yucca Weevil – or Scyphophorus Yuccae – can be found on Joshua Trees from late winter through summer. They can be up to 3/4 of an inch long and have a long, distinct snout.
The larvae of these beetles bore into the central growing point of a yucca plant, damaging the base and roots of the plant.
The Mojave Desert Land Trust is holding a Weevil Watch in an effort to document the presence of these native weevils, and you can participate.
A virtual training for the project will take place on Monday June 12 from 4-5pm. They will train interested observers on how to spot yucca weevil damage as well as to how to participate in the project itself.
Link to MDLT Class: Pre-registration is required.
More information on Yucca Weevils: https://ipm.ucanr.edu/PMG/GARDEN/PLANTS/INVERT/yuccaweevil.html
