Resources to Help in SLF Quarantine Compliance and Management

Hello, everyone,

Spotted lanternfly (SLF) is a potentially devastating pest of grape, now expanding its spread in Virginia. In July 2022, VDACS expanded a quarantine zone from 3 counties to 12, including contained independent cities.

Many vineyards and wineries will now need to deal with the quarantine protocol. At least one person per company will need to get certified through a short, on-line training session ($6.00). That person may train others in the company to assure compliance. All shipments and vehicles leaving the quarantine zone will need to be inspected. Information on the quarantine protocol may be found here (https://www.vdacs.virginia.gov/plant-industry-services-spotted-lanternfly.shtml). This site contains the protocol as well as the current version of the quarantine map.

The training required for certification is easy and inexpensive. Access to the training may be found here (https://register.ext.vt.edu/search/publicCourseSearchDetails.do;jsessionid=E3FEE1B1C1921BA6848B382063FC0BDE?method=load&courseId=1066947).

When doing inspections for quarantine compliance, it will be necessary to know what life stages of SLF can be expected. We have graph posted online that conveys this information clearly (https://www.pubs.ext.vt.edu/ENTO/Ento-268/ENTO-268.html). This can be posted where appropriate in your operation.

Theresa Dellinger and Eric Day in the Department of Entomology have created a useful aid for the public on the SLF quarantine, entitled "What Virginians Need to Know About SLF Quarantine expansion" (https://www.pubs.ext.vt.edu/ENTO/ENTO-319/ENTO-319.html).

Beyond matters of quarantine compliance, we have online resources for SLF management. There is a fact sheet on SLF management, available in English and Spanish, available here (https://www.pubs.ext.vt.edu/ENTO/ENTO-323/ENTO-323.html). In a similar fashion, a fact sheet for SLF management in residential areas (https://www.pubs.ext.vt.edu/ENTO/ENTO-322/ENTO-322.html).

Needless to say, SLF is covered in our annual chemical control recommendations for vineyards and home fruit. The risk to tree fruits is not considered to be as great; SLF will be included here as needed. It should be noted that orchardists will still need to deal with quarantine issues.

VCE Pest Management Guide for Commercial Vineyards (https://www.pubs.ext.vt.edu/content/pubs_ext_vt_edu/en/456/456-017/456-017.html)

VCE Pest Management Guide for Home Fruit (https://www.pubs.ext.vt.edu/456/456-018/456-018.htmls.html)

Last but not least, I maintain a spotted lanternfly page in the Virginia Fruit Site ( https://www.virginiafruit.ento.vt.edu/SLF.html). I intend for this to be one-stop shopping for matters on SLF, and all the above links are active there.

I hope this is useful. More later, Doug

Spotted lanternfly update: Large expansion of quarantine zone

Hello, everyone,

In May 2019, the Virginia Department of Agriculture and Consumer Services (VDACS) announced the establishment of a quarantine zone for spotted lanternfly (SLF). I posted on this here on 28 May of that year, and again on 3 June, when a public open house was announced to discuss compliance with the program. The quarantine zone initially contained Frederick, Clarke and Warren Counties plus the City of Winchester. A significant expansion of the zone is now planned, and will be formally announced in the next week or so. The quarantine zone additions will include the counties of Albemarle, Augusta, Carroll, Page, Prince William, Rockingham, Rockbridge, Shenandoah and Wythe, plus the cities of Buena Vista, Charlottesville, Harrisonburg, Lexington, Lynchburg, Manassas, Manassas Park, Staunton and Waynesboro. Here is the new zone map:

Here is a link to more information on the quarantine (https://www.vdacs.virginia.gov/pdf/spotted-lanternfly-quarantine.pdf). There will be public informational sessions to discuss the program, and facilitate compliance. One such meeting will be held on Aug 1, 5:50-8:30 PM, at King Family Vineyards. For more information, contact Grace Monger, gimonger@vt.edu (free with pre-registration, $10 at the gate). I will announce other sessions as I learn of dates.

One of the conditions of the quarantine is that at least one person within each company (vineyard, winery, orchard, hops yard, etc.) be certified to inspect and approve vehicles or shipments leaving the quarantine zone. The current certification program is linked here. Cost for a certification is $6.00.

The quarantine zone is being expanded because SLF continues to spread in Virginia. Different maps are prepared reflecting this spread. There are understandable differences in details among maps depending on the nature of programs - approvals that are needed for a quarantine, official identification of SLF samples, etc. Here are two current maps. The first has been developed within the Department of Entomology at Virginia Tech, by Eric Day and Theresa Dellinger. The second is maintained in a SLF site by the New York State IPM program at Cornell University.

These two maps reflect two infested counties not yet included in the quarantine: Campbell and Loudoun. An important point of the Cornell map is that it includes the whole range of SLF. A significant point here is that SLF has turned up in North Carolina, the first infestation for this state, in Forsythe County, Close to I-44. More information on the NC infestation can be seen here.

Summary: Important take-away points here are that SLF has continued its spread, now including the whole Shenandoah Valley, further incursions in the Piedmont of Virginia, and a significant jump into southern Virginia, almost certainly assisted by human transportation, at the junction of two major highways. There has been an expansion into North Carolina, close to (though not adjacent) to Carroll and Wythe Counties. VDACS is set to announce a significant expansion of the SLF quarantine zone in Virginia. Watch for annoucements of informational meetings in affected counties.

You can contact me for information on spotted lanternfly biology or management. For questions on the quarantine program itself, contact VDACS at spottedlanternfly@vdacs.virginia.gov, or 804-786-3515.

More later, Doug