To stop the spread of spotted lanternfly (SLF), the New Jersey Department of Agriculture (NJDA) issued a quarantine for counties where SLF has been confirmed. This quarantine requires all businesses and organizations moving within or from the quarantine zone in the course of their work to obtain permits issued by NJDA.

The quarantine strictly prohibits the movement of any SLF living stage including egg masses, nymphs, and adults, and restricts the movement of articles that may harbor the insect. The following are examples of but not limited to restricted articles:

• Landscaping, remodeling or construction waste
• Logs, stumps, or any tree parts
• Firewood of any species
• Grapevines for decorative purposes or as nursery stock
• Nursery stock
• Packing materials such as pots, crates, pallets, etc.
• Outdoor household articles including recreational vehicles, tractors and mowers, grills and furniture and their covers, tarps, mobile homes, tile, stone, deck boards, mobile fire pits, any associated equipment and vehicles not stored indoors

New Jersey Spotted Lanternfly Quarantine For General Audience

NJ Spotted Lanternfly Quarantines Rules – see Subchapter 10 to Quarantines regulations

In order to prevent the spread of spotted lanternfly to new areas and potentially new states New Jersey Department of Agriculture has enacted a quarantine program in counties where this insect pest has been confirmed.  In accordance to the NJDA SLF regulations, companies and organizations conducting business in the quarantine zone must have a permit from NJDA to move vehicles, equipment and other goods within and out of the zone.  In order to move products, both the business and transport company must have a spotted lanternfly permit.  The permits are universally accepted from other states as singularly recognized permit program.  Only one permit is required for each business, however, if there are multiple locations it may be best to get a permit for each location. Please place a copy of the permit with the items being transported along with the paperwork.

If you transport any products into or within the quarantine zone, you need to have a permit issued by the New Jersey Department of Agriculture. By taking a simple training and completing a quiz, you will demonstrate your knowledge of the biology of this invasive insect and learn about the measures to minimize the spread of the Spotted Lanternfly.

A permit provides evidence that you have completed training on how to follow the rules of the quarantine order, and you agree to do all you can to ensure that you are not transporting SLF. You will receive a tag for your vehicles to show that you have the SLF permit from the PDA.

If your business or organization meets the criteria for requiring a spotted lanternfly permit, the designated employee(s) need to complete the online course offered by Penn State Extension and NJDA. This free, self-paced course will provide the information and resources necessary for the designated employee to then train fellow employees about best operating procedures within the quarantine zone. The requested number of vehicle permits will be issued to the business once the designated employee passes the online course.

General Business and Green Industry Permits

Train the Trainer PowerPoint Slides

New Jersey Spotted Lanternfly Permit Participants

 

New Jersey Residence Checklist (English)

New Jersey Residence Checklist (Spanish)

Spotted Lanternfly Management for Landscape Professionals

Spotted Lanternfly Management for Vineyards

As mentioned above, SLF utilizes a large range of plant hosts. Home gardeners have reported SLF feeding on their backyard plants, including cucumbers, basil, rose, peony, Russian sage, and more. In most cases, SLF will only feed on these herbaceous plants for a short period of time (less than one week). In some cases, damage on these plants has also been reported. Whether or not damage occurs appears to be largely dependent on the density of the population and other plants in proximity. We highly recommend that you monitor for SLF on a regular basis to try to predict where SLF is likely to feed and move in a given area. If there are other highly desirable hosts nearby, we recommend you focus monitoring and potential treatment on those plants. Monitoring can be done through visual inspection.

Predacious insects and spiders, parasitoids, and fungi have all been found attacking SLF in the United States. These are generalist natural enemies and they are unlikely to greatly reduce the population levels of SLF. More research is being done to understand if we can better utilize these already existing natural enemies for SLF management. Currently, there is no commercially available biological control option available for SLF. Research is ongoing to find potential parasitoids or pathogens that can be released into the United States as a long-term control solution.

Ovicides

Based on studies done in 2018 and 2019, our results suggest some insecticides have ovicidal action against SLF eggs. All studies were done on intact egg masses (with covering) between February and April. Although many synthetic insecticides were tested against SLF eggs, the most effective products tested were paraffinic and/or mineral oils such as JMS Stylet oil, Damoil and Lesco Horticultural oil, commonly used in fruit systems as insecticides to control soft bodied insects. Many of these oils are also available to residents at local garden centers. When oils were applied at a solution of at least 3 percent, they were effective in killing up to 75 percent of treated eggs. One of the most important parts to getting effective control is to make sure you have good coverage and apply the oil solution directly to the egg masses. The only plant-based oil, soybean oil, had similar control of SLF egg masses when applied at a 50% concentration. Oils, when applied at the correct time and with good coverage, can offer some control of egg masses and have very little non-target effects. The use of oils provides not only a safe, environmentally friendly option but also provides control to some egg masses that are not accessible for physical removal or smashing. However, for egg masses that are within a reachable area, smashing or scraping the egg masses will provide greater efficacy than the ovicides currently available.

Contact Insecticides

Many commonly available insecticides that kill insects on contact are effective against SLF. Efficacy, residual activity, and toxicity vary between products. We recommend trying the least toxic options first. Toxicity to mammals can be determined from the LD50 values found on the Safety Data Sheet (SDS) for each product, and toxicity to birds, fish, and bees can be found in the table below. If systemic insecticides are not used, frequent use of contact insecticides may be needed to control SLF for the entire season. Always apply insecticides after bloom is finished to help protect natural enemies and pollinators.

*Some trees are sensitive to horticultural spray oil.
Note: This is a guide for when to use management tactics to manage SLF. Read each label carefully and apply according to the label directions. These are our current best recommendations for management tactic timing, but not all combinations of active ingredient, timing, application methods, and tree species have been tested.

Systemic Insecticides

We recommend the use of systemic insecticides for adult SLF control only in high-population areas and high-value trees. Research trials are ongoing to evaluate the best application method, active ingredients, how much insecticide is needed to kill SLF, and how long the insecticide application will last. Based on current data, most systemic applications will last at least two months. Obtaining additional months of control is possible but highly variable depending on many factors (application method, active ingredient, weather, tree species and size, etc.). Proper timing of the application also seems to be very important for effectiveness.

Always read the label and apply the pesticide according to directions. Certain products and/or applications may have restrictions on the cumulative amount of pesticide applied per designated timeframe or acreage. It is illegal to exceed limits of product use that are specifically stipulated by the label. This is true regardless of lack of adequate target pest control (SLF) due to the variable conditions as noted above. Always apply insecticides only after bloom is finished to help protect natural enemies and pollinators.

Three application methods are used to get systemic insecticides to be taken up by the plant: injection, trunk sprays, and soil drenches.

Trunk Injection

Based on current information, injection with dinotefuran has been successful at killing SLF in a variety of tree species, including tree-of-heaven, silver maple, and red maple. Death of SLF has been observed in less than 24 hours after injecting a tree. Injections with imidacloprid have also been evaluated with good success.

Trunk Spray

Trunk sprays with dinotefuran have also been successful. This treatment program is currently being used by USDA APHIS and the Pennsylvania, New Jersey, and Virginia Departments of Agriculture. Observed death of SLF may take longer than with injected applications but is still likely to occur within a few days of treatment. If the label requires a bark penetrant, be sure this is included in your application. Trunk spray applications of imidacloprid have had variable results and more research is needed.

Soil Drench

Little data on soil drench applications of insecticides to control SLF is available to date. The insecticide needs time to be taken up by the tree roots, and this is often the method with the greatest time delay until it begins to kill SLF. Postbloom spring applications of imidacloprid soil drenches are recommended, whereas dinotefuran should be applied midsummer until September to target adult SLF. Soil drench application is a commonly used method, especially for formulations widely available to home gardeners. Read the label carefully and follow the directions to achieve best results.

Systemic Products

 

 

Tree of Heaven (Ailanthus altissima), is an invasive and rapidly growing deciduous tree, now common to urban, agricultural, and forested areas. Spotted lanternfly is particularly attracted to tree-of-heaven. Learn how to identify and manage the tree and why it's important to the fight against spotted lanternfly.

• Factsheet: Tree of Heaven Identification and Management
• Video: Tree of Heaven: Accurate Identification
• Video: Controlling Tree of Heaven: Why it Matters

DIY Spotted Lanternfly Circle Trap