Pennsylvania Maple Syrup Producers Council

Good Afternoon,

Thank you to everyone who formally supported the IR-4 request for investigation of insecticide use with spotted lanternflies on maple trees used for syrup production.  If you have not done so but wish to, you can do so following the instructions below.

Due to the numbers of questions received regarding this potential investigation, we will be hosting an online meeting that you are cordially invited to attend on July 12, 2023 at 11:00 AM EDT.  This meeting will cover the background for this project, the potential impacts, and why we are pursuing the Integrated Solutions Investigation.  There will be plenty of time available for questions.  If you cannot make the meeting and wish to watch a recording of it, please contact me and let me know.  Also please feel free to contact me with questions ahead of time.

If you do not want to receive updates on this process, please let me know and we will remove you from this mailing list.

Thank you,

Brian Walsh

Brian R Walsh is inviting you to a scheduled Zoom meeting.

Topic: My Meeting

Time: Jul 12, 2023 11:00 AM Eastern Time (US and Canada)

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    Meeting ID: 780 743 3339



Brian Walsh

Horticulture Educator

Penn State Extension, Berks County

Penn State University, College of Agricultural Sciences


Phone: 484 335 2010




As many of you are aware from previous conversations and presentations, there are currently no insecticides registered for use on maple trees that are tapped for maple syrup production/ maple as a food product.  The interaction of spotted lanternflies (SLF) and maple trees that have been observed by researchers, particularly red and silver maples (Acer rubrum, Acer saccharinum) have been documented over multiple seasons, especially in small woodlots, field edges or fragmented forests.  You can learn more about this here:

With consideration that no insecticides, organic or conventional, are labeled for maple syrup production, combined with recent research showing that heavy lanternfly feeding on maples can drastically impact sugar content in woody tissue, Penn State has submitted an IR-4 request for an Integrated Solutions Project under the PPWS (Pest Problem Without Solutions) justification.  More information on SLF feeding and sugar content in maples can be found at:

If you are unfamiliar with the IR-4 project, you can find out more about it here:,corn%2C%20soybeans%2C%20and%20cotton.

The purpose of requesting an ‘integrated solution project’ is to allow the investigation of efficacy of several active ingredients, including “softer” or organic products instead of one specific active ingredient.  Additionally, if approved, this will support the necessary residue trials that will be required for any possible registrations of insecticides that might registered for maple syrup production.

In order to be selected, support is being requested now, prior to the Northeast regional conference on July 25th.  Should enough support for this project be garnered regionally, it will be advanced to the national selection meeting in September of 2023 for final consideration and potential funding.


If you would like to support this project being put forward for funding, please do so at the IR-4 website.  This request has been assigned the number: IS00441.

In order to formally support this project, you must submit a “supporting/ similar request”.  This function can be located at:  This link should take you to a page that looks like this:

In the first yellow drop down box labeled “IS Number” open the box and select IS number ‘IS00441’.  This will open the project screen which looks like this:

In the third to last box in the red banner you will see ‘SUPPORTING/ SIMILAR REQUEST’ with a hyper link ‘IS00441’ beneath it.

Select the hyper link.  This will open a new window which will require you to enter and submit your email.

IF you are already in the IR-4 system, there will be a verification code emailed to you.  Once verified, a dialogue box labeled “Additional Reason For Need” will open.  This is where you can state your support for this project and why you think it is needed, why your organization supports it, etc.

IF YOU ARE NOT registered with IR-4, you will need to enter your email and receive a verification code.  Once verified, you will then have the option to register for future use, or to not have your information saved for future use.  Either way, you will be able to enter your “Additional Reason For Need” in the dialogue box stating your support for this project and why it is needed.

If you are in support of this project being funded, please support it and please forward this message to other stakeholders in the maple syrup industry, including from other states.  Supporters can be individual producers, researchers, industry associations, etc.  Increased support will increase the likelihood of this project being funded for this small, but important, industry and begin the research necessary to potentially provide tools that some producers may find necessary to utilize with SLF.

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