Lake Ontario Fruit Program Enrollment

Program Areas

  • Food Safety
  • Variety Evaluation
  • Market Development
  • Pest Management
  • Cultural Practices

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  • Direct Mailings
  • Educational Meetings & Conferences
  • In-Field Educational Opportunities
  • On-Farm Research Trials

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2019 Cornell Fruit In-Depth School Presentations Now Available!

Last Modified: April 23, 2019

In-depth School on
Precision Crop Load Management and Plant Growth Regulator Use in Apples
March 26-27, 2019
DoubleTree Inn
Syracuse NY
We welcome you to the 2019 Cornell In-depth Fruit School on Precision Crop Load Management
PCLM). We envision this school to be both an opportunity to learn concepts of PCLM and the impacts
that managing crop load more precisely has on the bottom line. We also hope this will be an
opportunity to give input to a future federally funded project on precision crop load management of
apple. We invite your input throughout the program but especially at the end of the first day on where
the greatest opportunities lie for research and implementation on farms in the East to increase orchard
income and grower profitability.
Tuesday March 26 Precision Crop Load Management

8:30am 1.Welcome to In-depth School and Objectives -Terence Robinson

8:45am 2. Pruning Studies to Manage Crop Load in Pennsylvania - James Schupp

9:30am 3. Precision Pruning in NY - Terence Robinson

10:15am Coffee Break

10:30am 4. Precision Thinning using the Pollen Tube Growth Model - Greg Peck

11:15am 5. Precision Chemical Thinning in Michigan - Phil Schwalier

12:00pm Lunch

1:15pm 6. Precision Chemical Thinning in NY and updates to the Carbon Balance Model-

Terence Robinson

2:00pm 7. The New phone App for Precision Thinning - Poliana Francescatto and Jon


2:30pm 8. Precision Pruning and Thinning in Washington - Stefano Musacchi (zoom


3:15pm Coffee break

3:30pm 9. Precision hand thinning - Mario Miranda

4:00pm 10. How computer vision can help with crop load management - Chris Layer

(Moog Corporation)

4:45pm 11. Grower's perspective on fruitlet counting and precision crop load management

5:00pm Discussion period with all presenters and input from grower community

5:30pm End of school for the day

6:30pm Dinner for grower participants on their own

Wed March 27 Plant Growth Regulator Uses

8:30am 12. Advances in PGR's for chemical thinning -Terence Robinson and Poliana


9:30am 13. Use of PGR's to induce branching in the nursery and the orchard - Mario


10:00am Coffee break

10:15am 14. PGR's to control growth and bitter pit - Terence Robinson and Poliana


11:00am 15. PGR's to manage harvest - Craig Kahlke, Poliana Francescatto,

and Keith Culver

12:00pm Lunch

1:15pm 16. Harvista treatments on quality and storage disorders of Gala and Honeycrisp - Chris Watkins

2:00pm 17. Using PGR's to increase return bloom and fruit set - Terence Robinson

2:30pm 18.Using PGR's to defoliate nursery trees - Poliana Francescatto

3:15pm Break

3:30pm 19. Use of PGR's to reduce russetting, or improve color - Terence Robinson

and Poliana Francescatto

4:15pm Panel discussion of PGR's - Terence, Mario, Poliana, Craig,

Chris and Keith

5:00pm Adjourn

Agenda for In-Depth School 2019 (pdf; 54KB)

Intro to Precision Crop Load Management (pdf; 95KB)
  • article by Terence Robinson

Intro to Precision Crop Load Management (pdf; 4129KB)
  • by Terence Robinson

Pruning to Manage Crop Load in Pennsylvania (pdf; 3538KB)
  • by Jim Schupp, Becky Wiepz, Melanie Schupp & Edwin Winzeler

Precision Pruning to Partially Control Crop Load in Apples (pdf; 18990KB)
  • by Terence Robinson, Poliana Francescatto, & Jaume Lordan

Precision Pruning of Gala Apples (pdf; 1995KB)
  • article by Terence Robinson, Poliana Francescatto, & Jaume Lordan

Precision Pruning to Help Maximize Crop Value (pdf; 2137KB)
  • article by Terence Robinson & Leo Dominguez

Precision Thinning using the Pollen Tube Growth Model (pdf; 2043KB)
  • by Greg Peck

Precision Cropload Management Syracuse NY Fruit School (pdf; 6476KB)
  • by Philip Schwallier

PGR's and Thinning Strategies 2019 (pdf; 3658KB)
  • article by Philip Schwallier & Amy Irish-Brown

Precision Chemical Thinning (pdf; 37100KB)
  • by Terence Robinson, Alan Lakso, Duane Greene, Poliana Francescatto, & Jaume Lordan

Precision Crop Load Management: Part 1 (pdf; 230KB)
  • article by Terence Robinson, Alan Lakso, Duane Greene, & Steve Hoying

Precision Crop Load Management: Part 2 (pdf; 229KB)
  • article by Terence Robinson, Steve Hoying, Mario Miranda Sazo, & Andrea Rufato

Precision Chemical Thinning (pdf; 666KB)
  • article by Terence Robinson, Alan Lakso, Duane Greene, & Steve Hoying

Introducting the Malusim App (pdf; 4346KB)
  • by Poliana Francescatto, Jaume Lordan,

Precision Pruning and Thinning in Washington (pdf; 6868KB)
  • by Stefano Musacchi & Tory Schmidt

Precision Hand Thinning (pdf; 489KB)
  • by Mario Miranda Sazo

Autonomous Orchard Efforts (pdf; 2027KB)
  • by Chris Layer

A Growers Perspective on Crop Load Management (pdf; 4373KB)
  • by Rod Farrow

Advances in PGR's for Chemical Thinning (pdf; 8081KB)
  • by Terence Robinson & Poliana Francescatto

News in Fruit Thinning: Testing New Alternatives to Carbaryl (pdf; 1276KB)
  • by Poliana Francescatto & Terence Robinson

Use of PGRs to Induce Branching in the Nursery (pdf; 12076KB)
  • by Mario Miranda Sazo

ABA for bitter pit control of HC (pdf; 34546KB)
  • by Poliana Francescatto & Terence Robinson

Use of Plant Growth Regulators to Control Growth and Bitter Pit (pdf; 1473KB)
  • Terence Robinson & Poliana Francescatto

Are combinations of ReTain™& Harvista™better than either alone? (pdf; 6106KB)
  • by Craig Kahlke

ReTain Plant Growth Regulator - Harvest Management (pdf; 895KB)
  • by Poliana Francescatto, Jim Wargo, & Gregory Clarke

Harvista™ by AgroFresh An Evolution (pdf; 2949KB)
  • by Keith Culver

Harvista treatment effects on quality and storage disorders of Gala and HC (pdf; 31530KB)
  • by Chris Watkins, Yosef Al Shoffe, Jacqueline Nock, & Yiyi Zhang

Use of AVG (ReTain) to increase fruit set (pdf; 1685KB)
  • by Poliana Francescatto & Terence Robinson

Use of Plant Growth Regulators Improve Return Bloom and Fruit Set (pdf; 26703KB)
  • by Terence Robinson & Poliana Francescatto

Chemical Defoliation of Apple Nursery Trees (pdf; 10640KB)
  • by Poliana Francescatto & Terence Robinson

Improving Fruit Finish (pdf; 2518KB)
  • by Poliana Francescatto & Terence Robinson

Use of Plant Growth Regulators to Control Russet and Improve Color (pdf; 4172KB)
  • by Terence Robinson

more crops




Asian Pears

Asian Pears

















Raspberries / Blackberries

Raspberries / Blackberries



Unusual Fruit

Unusual Fruit

more crops

Upcoming Events

Good Agricultural Practices (GAPs) Training & Food Safety Plan-Writing Workshop

February 2 - February 3, 2023
Newark, NY

Goals of this workshop:

  • Understand how GAPs (Good Agricultural Practices) impact produce safety, and how you can improve practices on your farm to reduce the risk of microbial contamination
  • Learn the difference between a FSMA Inspection and a GAPs audit, and learn what is needed to have a USDA GAP/GHP audit and the 2 types (Basic & Harmonized)
  • Begin writing a farm food safety plan that complies with a USDA GAP/GHP Audit

This workshop is targeted at Mott's growers who need to have a successful GAP audit for the 2023 harvest. However, all farms and organizations are invited to attend.  

We will have several breaks, including a lunch break, scattered throughout the day, but feel free to step away whenever you need to. Lunch and snacks provided. Note: All times are approximate. Time spent on each topic varies depending on audience and questions/discussion. There will be time for questions at the end of each section and a final opportunity for questions when we close for the day.  

Instructors Confirmed: Craig Kahlke (CCE-LOF), Robert Hadad (CCE-CVP), Caroline Boutard-Hunt (CCE-Yates), Judy Wright (CCE-Seneca), and Representatives from NYS Dept. of Ag & Mkts.

view details

How Profitable Will My New Orchard Investment Be? 1-day, hands-on skills class

February 7, 2023
Highland, NY

The Eastern NY Commercial Hort Team and the Lake Ontario Fruit Team are offering a 1-day, hands-on course at 5 locations in NYS in January and February for tree fruit farms on using farm financial information and other resources to make decisions about long-term investments or changes to their business.  We will apply the techniques covered in the 8-part webinar series in December to scenarios using sample financial data from fruit farms in NYS.

view details

Apple Leafcurling Midge IPM - Webinar

Event Offers DEC Credits

February 16, 2023

In recent years, the apple leafcurling midge (ALCM) has become an increasingly problematic pest in many orchards across the northeast.

view details


Save the Date! - Scroll down for Upcoming Events

Have you missed a meeting recently? All recorded LOFP hosted webinars can be found on our YouTube Channel

NOW - please scroll down to find the link to the short NY Herbicide Resistance Survey!

Courses Available All Year - Cornell Small Farms Program New Season of Online Courses-Enroll Now!


26 Jan - Innovative new technology to implement PACMAN (Part 2) & How's your adoption going?- 12pm (Eastern) - online - registration required

16 Feb - Apple Leafcurling Midge IPM - Webinar - 1:30-2:30pm - Registration Now Open

27 & 28 Feb - WNY Winter Fruit Conference - Registration Now Open

14 Mar - USDA/RMA Listening Session - Spring 2023 Apple Grower Meeting -
The Risk Management Agency (RMA) is inviting interested parties to participate in a listening session to discuss the proposed changes to the apple crop insurance program. Free - Rochester

15 Mar - Fire Blight Informational Webinar Series - Using biopesticides to help control fire blight - 7-8PM

13 Jun - Fire Blight Informational Webinar Series - Pruning and sanitation strategies to reduce fire blight - 7-8PM

18 Oct - Fire Blight Informational Webinar Series - Using weather and environmental conditions to optimize biologicals and biopesticides for bloom production - 7-8PM

Food Safety Virtual Office Hours

Cornell Institute of Food Safety "Virtual Office Hours", Tuesdays Noon to 1pm

Past recorded virtual office hours can be found on YouTube:

Webinar Recordings

Check out the recordings of some recent webinars:


Employment Opportunities

The CCE-LOF Program has created a space to share Lake Ontario Fruit Region local employment opportunities. See listings and details for sharing listings at|business

Pollinator Resouces

Now available Pollinator Resource Links

Meeting Recordings Now Available

Did you miss the recent meeting?  Check and see if we recorded it and added it to our website or Lake Ontario Fruit Program YouTube Channel.

Honeycrisp Meetup recordings available here.

Why are my trees growing so poorly? recording available here.

Additional Recorded Webinars listing with recording and resource link are available at|crops|apples|crop*38

New Publication on Growing Pawpaws

Are you a fan of pawpaws? These custardy fruits can be hard to come across, so this guide provides information on how to grow your own pawpaw from seed, and how to care for grafted seedlings. Pdf on growing now available.​|crops|unusual_fruit|crop*50

New Weed Management Technology Survey

Want to move away from herbicide reliance? Are you using novel technologies to manage weeds? We want to know about it to inform our weed science research. A team of weed scientists from University of California Davis, Oregon State University, and Cornell University are asking berry, tree fruit, tree nut, and vine crop growers to take 5 to 10 minutes and answer this short and anonymous survey. Weed Technology Survey link:

For more information on this survey please visit

Pollinator Webinar Series - Summer 2020

The Pollinator Webinar Series presented by Penn State cover bee health and pollination services.

Bloom Pesticides for Pollinator Health

A reference table created by Janet van Zoeren and Anna Wallis, is now available at|pests.