- Author: Jeannette E. Warnert
![Dead palm tree infected by South American palm weevil. [M. Hoddle]](https://ucanr.edu/blogs/UCIPMurbanpests/blogfiles/39779small.jpg)
Southern California's iconic palm trees are now threatened by another invasive species, the South American palm weevil, reported Mark Muckenfuss in the Riverside Press Enterprise.
Mark Hoddle, UC Cooperative Extension specialist based at UC Riverside, has been monitoring the pest south of the border and recently visited Tijuana to assess the infestation.
"We found about 130 dead Canary Island palms," Hoddle said. "It's been devastating in Tijuana."
On the way back to Riverside, he stopped in...
![Figure 1. South American palm weevil adult (R. palmarum). [T. Ellis, San Diego County]](https://ucanr.edu/blogs/UCIPMurbanpests/blogfiles/38715small.jpg)
[From the August 2016 issue of the UC IPM Green Bulletin]
The South American palm weevil (SAPW), Rhynchophorus palmarum, was recently discovered in a Canary Island date palm in San Ysidro, southern San Diego County.
Twenty additional Canary Island date palms in the San Ysidro area appear to be infested, but have not yet been confirmed.
Weevil Biology
The biology of SAPW is similar to the red palm weevil that was eradicated from Laguna Beach, Orange County, between 2010–2012. The adult of the South...
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