Unconfirmed Spotted Lanternfly in California
An unofficial report announced that a single, adult spotted lanternfly was found on a tree in Davis, CA. The insect was found on a tree in a residential area near a hotel.
Last fall, California Department of Food and Agriculture (CDFA) officials reported finding several dead adult spotted lanternflies on cargo planes arriving in Sacramento, Stockton, and Ontario airports. All flights originated from the Allentown, PA area.
University of California Cooperative Extension Entomologist, Surendra Dara, commented that since the adult was alive, it likely came from within the state of California. “I think that is a logical assumption, to think that there was an egg mass that came from the infested area and some insects emerged from it,” he said.
As spotted lanternfly continues to expand its range in the U.S., industries of host plant material are becoming increasingly concerned. Grape, cherry, peach, apple, pine, sycamore, ash, and many others (over 70 hosts known to date) are all at risk. Populations of SLF are currently known to be established in Pennsylvania, Delaware, Virginia, and New Jersey. SLF has been found in Maryland, New York, and Connecticut but is not believed to be established. California officials hope this is the case in their state.
For more information on spotted lanternfly, an informational webinar has been posted by the Northeastern IPM Center.
The Horticultural Research Institute (HRI), the foundation of AmericanHort, has directly funded a project with Dr. K. Hoover, Pennsylvania State University, to track movement of spotted lanternfly in the landscape and ultimately help protect nursery production and landscapes. USDA APHIS announced on March 2, 2020 that over two million dollars will be allocated towards surveys and monitoring, outreach, modeling, control strategies, and canine detection of spotted lanternfly.