ACER Research

Ohio Maple NPR Soundbyte

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You are never quite sure how a piece of media coverage will turn out after a couple of hours of interaction gets boiled down (yes, that’s a pun) to 4 minutes and 30 seconds.  But I’d say the NPR creative machine did a great job churning out something engaging that highlights work across the state from the past, present, and even into the future.

This is as good of a time as any to remind everyone of Ohio’s Maple Madness weekends on March 2-3 and March 9-10.  You can scan the following QR code off your monitor or visit the Tour Map to plot your own route.

At Ohio State Mansfield, we will be hosting our Maple Madness event on Saturday, March 2nd – we hope to see you there.  Come hungry!

Mid Season Update & Cornell’s Maple Climate Network

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Our sap season at the OSU-Mansfield sugarbush is well underway after tapping trees beginning January 29 and officially collecting sap by February 1.  While I still have time to change my mind, my current belief is that we nailed the “When should we tap” question with the right answer this year.  Our first run was a solid week long with solid nightly resets below freezing as this forecast basically fulfilled itself just like the weather prognosticators predicted.  Though overall sap volume was not as productive as it could have been, sap Brix started off at 2.1 and stayed ready right around 2.0.  By the end of the first run and through roughly Valentine’s Day, the woods got downright crunchy and dry highlighted by a few days that pushed temperatures almost up to 60 F.  During a second run of several days, flows remained average at best but Brix still hovered at a good sap: syrup making ratio.

As far as growing degree days go, we are almost exactly halfway to seeing silver maples break bud, and the rest of February and first couple days of March as currently forecast will likely push us right up to that threshold.  If I had to guess, we will be shutting off a couple main lines that are heavy “Rilver” (red x silver hybrids) in the March 1-5th range and hoping for another week or two production out of our sugar maples.

While there are a few nights with temperatures forecast for the low-mid 20s, it appears the OSU-Mansfield sugarbush will spend more nights above freezing as February drags into March.

Checking forecasts further north in towns like Chardon, Middlefield, and Geneva, all the way north to Ashtabula on the lakeshore, most nighttime temps are currently sitting on the wrong side of 32 Fahrenheit and the next 2 weeks offer only a few opportunities at hard overnight resets to stimulate good sap flows.  What March holds in store, I certainly don’t know.  And if another great sugaring weather pattern emerges, will our taps still be putting out lots of high quality sap if and when that occurs?  What I do know is this – Mother Nature has always and will continue to be the one holding the cards.  Even if my hindsight is happy with our initial tapping dates and I don’t eventually wish for a do-over, that is still no guarantee of a banner season.

As this year’s season ticks along, we’re excited to have an Ohio maple producer in Geauga County hosting a tree monitoring system for Cornell’s Maple Climate Network database.  You can track various metrics, such as Total Sap Production, Atmospheric Pressure, Tree Pressure, Rainfall, and Soil Moisture on this Dashboard.  Just look for the legend indicator so you can focus on some Ohio data and watch the season unfold from a single sugar maple tree’s perspective.  A great project with lots of potential, we’re glad Ohio can be a small part of the effort.

WV Maple Event Opportunity

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Southern Ohioans have a great opportunity to slide across the Ohio River to join a wonderful maple event scheduled for October 14th in Wayne, West Virginia.  Just across the water from Lawrence County, OH, our partners at Future Generations University and West Virginia University are putting on a workshop titled “Forest Management for Sap Production: Why You Should ‘Think Maple’ .”

Lunch is provided and the workshop goes from 9:00 AM to 4:30 PM and features sugarhouse and sugarbush tours at Tom’s Creek Maple.

Specific talk sessions are as follows:

  • Managing for sap production / Managing for timber production / or both!!
  • Sap collection systems
  • Managing a woodlot for sap production (hands-on and forestry tech talk heavy)
  • Integrating other forest farming activities into your sugaring operation
  • Forest health threats to maple
  • Technical resources through the OH/WV Maple Toolbox

Slots can be reserved by emailing syrup@future.edu.  Don’t miss out on a great learning opportunity to learn from syrupmakers in the far southern tier of what Ohio producers can expect to encounter in maple sugaring.

PA Maple Boot Camp Recap

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Maple Boot Camp rotated over to Pennsylvania for 2023 after we hosted it last year in ’22.  The agenda delivered a wealth of information to 20+ lucky attendees who came from backgrounds of “I’ve never tapped a tree before” to “I’m looking to expand into that medium-large producer category.”  Speakers from Ohio, West Virginia, and Pennsylvania served to make Boot Camp a huge success – a special thanks to Mike Lynch of Baer Brothers Maple for hosting the in-field workshops in his sugarbush and sugarhouse.

Kate Fotos, Les Ober, and Mike Rechlin taught a maple grading seminar to attendees who elected to show up early for a pre-Boot Camp workshop.  Day 1 covered discussions of tree identification,  site and woods evaluation, sugarbush inventory, and tree health assessments, and spanned indoor sessions with outdoor hands-on lab time.  After a wonderful catered dinner, Steve Childs tackled night one of value-added maple products and demonstrated maple sugar and maple cotton candy.  Here is a link to the New York State Maple Confections Notebook that is a testament and legacy to his lasting impact on the maple industry across the region.

Day 2 kicked off with a flipped itinerary to accommodate weather conditions that were less than favorable.  Kudos to everyone’s flexibility and Scott Weikert’s boldness to turn the agenda on its head.  It is hard to imagine the day going much better than it did!  While night two of maple confections featured maple cream and maple candies back in the meeting event space, the vast majority of the day took place in the sugarbush at Baer Brothers Maple.  Sap collection methods and detailed demonstrations of installing and maintaining main line, lateral line, and drop and spout configurations filled the morning.  After a bagged lunch, best practices related to tapping and sanitation practices took center stage.  Semi-structured lectures interspersed with lots of hands-on demonstrations and opportunities for workshop attendees to try their own hands at different skills and techniques carried the day.

While I was not able to stick around for the third and final day, everyone once again caravaned out to Mike’s sugarhouse to see his reverse osmosis and evaporator set-up.  This is such an important component of workshops, but due to time of year, sometimes gets the short end of the stick.  Not this time.  Mike had his system primed with water to get all the steam and the burn which takes an off-season experience to the next level.  Attendees were lucky to enjoy an afternoon closing session on financial planning, operation economics, sales and marketing from one of the best in the industry – Mark Cannella from UVM.

Planning for Maple Boot Camp version West Virginia is already afoot for 2024 – as details begin to fall into place, you can be sure we will share all of the relevant details!

Upcoming Maple Events

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Working from long-range calendar planning to close-range events, we are excited about the upcoming slew of maple events.  There is literally something for everybody!

Join us for the 2023 Ohio Maple Days in Ashland, Ohio, December 8th and 9th for 2 days of instructional workshops, food and fellowship, and a Saturday full of technical talks for both advanced sugarmakers and beginners.  We kick things off at 1 PM on Friday with a value-added workshop that will teach participants how to make maple sugar, maple cream, maple candy, maple cotton candy, and even some maple-infused breakfast sausage links.  The Ohio Maple Producers Association is hosting a maple contest with banquet blowout Friday night with the full conference agenda on Saturday.  During Saturday afternoon, we are excited to offer a beginner’s track to explore the basics of maple and an advanced track that will focus on sugarhouse design, marking your woods for a crop tree release timber harvest, and more.  And by popular demand, we are bringing back hydrometer testing – so please mark your calendars for December 8th and 9th.  We will post the registration details as soon as they go live.

Lake Erie Maple Expo is slated for November 10-11 in Albion, PA.  This popular event has an excellent list of sessions and speakers on tap for participants.  I for one have never been in attendance but will be changing that this year.  I hope to see a few familiar faces there!

The week prior to LEME on November 3rd and 4th, the Ohio Maple Producers will be hosting their annual meeting – stay tuned or check their website for details!

Sturbridge, Massachusetts, will be the hosting location for this year’s North American Maple Conference from October 25-28.  This is the BIG show with an absolutely packed slate of tours, meetings, technical workshops, and great meals.  You can find registration details here.  If that’s not enough for you, the International Maple Grading School will be offered October 29th and 30th just down the road in Grafton, MA.

A bit more local, we are excited to be offering a tandem webinar/workshop in collaboration with the University of Kentucky.  The webinar – evening of September 11th –  will be a basic introduction to all things maple in order to whet new producers’ appetites and lure them out to the in-person event in Boone County, KY, on Monday, October 16th.

Sandwiched in between those 2 events, please consider joining us down in southwestern Ohio Saturday, September 16th for a workshop in partnership with the Cincinnati Zoo.  Registration details are live on the Ohio Woodland Stewards Program website.  In conjunction with the workshop, participants will have a chance to shop and browse at the Zoo’s Native Plant Nursery there on site at Bowyer Farm.

And last but not least, Pennsylvania is hosting Maple Boot Camp on September 6th-8 prefaced by a Maple Grading Workshop the morning of that Wednesday.  Boot Camp is the brain child of the 3-state OH/PA/WV, and it is the Keystone State’s turn to host.  We are excited about this in-depth, deep dive into maple sugaring and hope to repeat the success of last year’s Boot Camp in Ohio.

I’ll be sprinkling reminders here and there as different registration deadlines loom, but I hope to cross paths with you at least once, if not multiple times, throughout the fall maple programming season.  Lots of options to choose from!!

Pennsylvania Maple Boot Camp: REGISTER Now

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Maple Boot Camp is going on the road for 2023 and pit-stopping with our neighbor to the east: Pennsylvania.  Scott Weikert and the good folks at Penn State University are hosting this year’s event from September 6-8 in Somerset, PA.  The agenda is fairly similar to last year’s event that we hosted at the OSU-Mansfield campus during the month of June.

To kick things off, attendees can sign up for a bonus maple syrup grading workshop morning of Wednesday September 6th.  The registration link is here.

The official Maple Boot Camp will kick off right after lunch that same day and continue for two and a half days through Friday mid-afternoon.  We hope to see you in Pennsylvania for this signature maple educational opportunity.  It is an excellent deep dive for beginners or small producers thinking about growing their operation.  Veterans will undoubtedly learn a thing or 3 though too as they interact with maple experts and producers from West Virginia, Pennsylvania, Ohio, and New York.

The Pennsylvania Maple Camp provides intensive, hands-on training for beginner and intermediate maple producers.  The 3-day curriculum begins with sugarbush assessment, then builds sequentially through all phases of maple syrup production from sap collection to boiling, bottling and sales.  Participants will gain the skills necessary for the safe, efficient, and profitable production of maple products.  Camp will include classroom lectures as well as outdoor, hands-on exercises.  Come one, come all, see you in Pennsylvania for Maple Boot Camp!

Another Topsy Turvy 2023 Maple Season

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Our 2023 maple season was yet another sub-par year subjected to early and frequent warm spells.  2023 marks the 3rd consecutive year that our first run of the season ended not because temperatures took a prolonged dive below freezing but because temperatures spiked into the upper 50’s or low 60’s.  Three years in a row!  Crappie fishing weather to end the first run of the season!  Starting off a season with a warm temperature spike sets the table for sanitation issues, and those challenges were forefront to yet another Ohio maple season.  For all practical purposes, our production season at the Ohio State Maple woods was over by March 1st.

Early tappers were rewarded this year making the most out of a tough season.  A few producers up north are holding out for a final run or two before also switching to post-season tear down and cleaning duties.  How the entire state fares is yet to be determined, but the individual producers I have spoken with are not ecstatic over the year’s production totals.  The bottom line is that Ohio appears poised to enter, heck we might already be in, a new normal.  Though spring is temporarily stalled with the current slight cool down, spring invaded winter like a unexpected marauding army.  To get an idea of just how early 2023’s spring has been, check out the time-lapse map from the National Phenology Network.

Regardless of whether you are a producer up north with a few more days of boiling on your horizon or if the season is a memory at this point, be sure to check out Future Generations University’s webinar next Thursday evening.  On March 16th at 7 PM, the Out of the Woods semianr series will focus on post-season sanitation.  Mike Rechlin and Kate Fotos are going to share best practice guidelines on keeping your sugarhouse and your sugarbush spic and span headed into the off-season.  You can watch the webinar on Youtube or get your own registration link through Zoom here.

Maple Sap-Only Enterprises – Participants NEEDED

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Chris Lindgren and Dana Ruppert from University of Vermont are recruiting active or prospective maple sap-only producers to participate in a research project.

UVM Extension Maple Business is developing financial tools and technical guidance to help folks make decisions about maple sap business ventures.  To jump start this effort, they are currently conducting a Producer Survey to gather in-depth information on sap business economic activity across the maple region.  It is hoped that the information gained from the study will help maple sap producers understand and learn more about production practices, costs and markets to enhance business opportunities.  Production, marketing, business practices and peoples’ interest in the maple sap project and resources are at the heart of this survey.  Their goal is to reach as many regional sugarmakers and sap producers as we can over the next couple months.  The results of this survey will be published by UVM Extension, shared in industry publications and discussed at maple conferences beginning in 2023.

To take the survey – and remember this is for sap-only enterprises – please scan the QR code or visit Sap Survey at the Maple Manager website now.

This is a great opportunity to help the maple research community continue to build support and tools for all varieties and styles of maple operations.

Not Just Sugar Maples – Part II

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Ohio Maple Days 2022 did not disappoint.  The food was fantastic, the vendor room crowded, and the presenters shared a wealth of knowledge of expertise across a wide range of subjects.  I was among those speakers, and Abby van den Berg and I presented a pair of talks that focused on those other maples.  Last week I shared a quick rundown of 20 short statements that summarize the Ohio work we have done from a high bird’s-eye viewpoint.  This week, we’ll check out Abby’s perspective from Vermont which focused on 4 central questions regarding red maples.  Before we get into it, be sure to mark your calendars for next year’s conference December 8th and 9th!

Abby van den Berg asked and attempted to answer 4 main questions of red maple.

  • Red maple, Are you as sweet as sugar maples?
  • Red maple, Do you have lower yields than sugar maples?
  • Red maple, Do you slow or stop running earlier than sugar maples?
  • Red maple, Does your sap make inferior or different-tasting syrup than sugar maples?

My main disclaimer, and one that I know Abby would echo, is that the answers she provided are pertinent and specific to a single research study in Vermont.  All of the answers should not be directly applied to Ohio, but there is certainly LOTS to learn and consider.  Why?  Well, Vermont is not Ohio, and this research is on reds and we have mystery maples.  So for a host of reasons – please learn from this incredibly interesting study, but do not directly project these results into your own woods.

First – Red Maple, Are you as sweet as sugar maples?  The answer here is not a surprise, the answer is “no.”  Abby’s data was “very crude” by her own words, but Brix analysis shows that red maples track 0.2-03 Brix beneath sugar maples most of the season.  This is supported by our Ohio study and consistent with patterns we have observed.

Second – Red Maple, Do you have lower yields than sugar maples?  From the perspective of statistical difference, no – red maples do NOT have lower production potential than sugar maples.  In the Vermont studies, heavy sap flow counterbalanced the slightly lower Brix levels to result in similar production outputs between red and sugar maples.  Does this mean they are identical or equal?  Not necessarily, but per the study design, they are not different.

Third – Red Maple, Do you slow or stop running earlier than sugar maples?   No.  The Vermont study produced no evidence that red maples slow down earlier than sugar maples.  Is this consistent with our Ohio results?  No.  Why?  We have some guesses and some hypotheses we’ve discussed, but this potential difference will be one to focus on as we learn more and more about these systems.

Fourth – Red Maple, Does your sap make inferior or different-tasting syrup than sugar maples?  A tasting experiment pitted red maple syrup (top row) against sugar maple syrup (bottom row) that was produced by trees in the same woods with the same methods at the same time under similar conditions as tightly controlled and identical as humanly possible.  Late-season syrup was deemed similar with respondents not able to differentiate between the 2 syrups.  Early-season syrup however did produce detectable differences in taste and profile.  Further research is ongoing to trace potential differences back to a source – was it a difference  in carbohydrates or invert levels, volatile aroma or flavor compounds?  Abby was not totally sure just yet, but I am sure we will find out what she discovers.  The most important finding here is that red maple syrup did not produce detectable late-season off-flavors as that is a common suspicion among maple producers.

You can read more about these results in the following article and recorded webinar:

Red Maple as Crop Trees for Maple Syrup Production

 

Not Just Sugar Maples – Part I

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Ohio Maple Days 2022 did not disappoint.  The food was fantastic, the vendor room crowded, and the presenters shared a wealth of knowledge of expertise across a wide range of subjects.  I was among those speakers, and Abby van den Berg and I presented a pair of talks that focused on those other maples.  Abby’s perspective from Vermont and focused mainly on pure red maples (come back for Part II next week for those highlights), and my perspective sharing from the basis of our ACER-funded research on Acer freemanii, Freeman’s maple, or just “rilver” for short.  Before we get into it, be sure to mark your calendars for next year’s conference December 8th and 9th!

Let’s try this recap in a series of short statements.

1) Sugar maples are the gold standard for maple syrup production – there is no disputing that.

2) But other maple species probably deserve more love than they have traditionally been given.

3) Mounting pressures from climate change, forest pests, and a host of other reasons make other maple species more important to consider than ever before.

4) Because of the above, it makes sense to learn more about other maple species production potential.

5) We thought we had simple (red x silver) hybrid maples in the OSU Mansfield research sugarbush where we have our single-tree research stations.

6) We thought wrong.  Turns out the hybrid maples are more mysterious than that – stay tuned for further genetic testing!

7) Regardless of what other variety of maple we are working with it still made sense to compare their production potential and other characteristics to sugar maple.

8) Research began in the 2021 as we pulled over 20 sugar maples and 50 of the mystery maples into single-tree sap collection chambers that measured daily performance.

9) Research techs and research PI quickly learned that maple research can be icy cold!

10) The 2021 season was historically bad and we had 5 roller coaster runs total.

11) During the 2021 season, our mystery maples were not as sweet overall as sugar maples, however, the mystery maples held a more stable Brix level from the start of the season to finish.

12) Mystery maples lost ground to sugar maples in terms of sap production volume as the season got later and later.

13) Surprised yet?  Maybe not.  But consider this – the best half of our mystery maples OUTPERFORMED the worst half of our sugar maples in terms of syrup production potential.  Would that also hold true for 2022?

14) Fast forward 11 months to yet another choppy, wild, and erratic 2022 sap season.  When will we have another “normal” sap season?

15) Note to self, might have to add another 10 degrees to y-axis of Sap Run graph in 2023.  I surely hope not!!

16) More in line with studies elsewhere, our 2022 mystery maple trial trees matched or outpaced sugar maple’s sap volume production up until the final sap run of the year.

17) Brix consistently tracked 0.2-0.4 points below for mystery maples as compared to sugar maples.

18) Ultimately, we’re excited and hopeful for a “normal” 2023 season to collect data from a more representatively average season.

19) In the interim, both years suggest that mystery maples are not to be overlooked especially if you are an operator using reverse osmosis in your sugarhouse looking to expand your number of taps.

20) Stay tuned for 2023 – our 3rd year of ACER-funded research investigating alternative maple species production potential.