Innovative ThinKingProgress with Two Mechanical Fruit Thinners<br />Jim Schupp and Tara Baugher <br />Penn State Universit...
GOAL:  To Increase Crop Valueby Reducing Hand Thinning	and Increasing Fruit Size<br />
<ul><li>4 mechanical thinner prototypes
Peach trees trained to      perpendicular V (2007, 2008)                     or vase (2008) </li></ul>Horticultural and Ec...
May 2008 covers: AFG, WFG & FGN<br />
White Lady<br />Hand Thinned<br />Blossom Thinned with String Thinner<br />
USDA Specialty CropResearch Initiative<br />Innovative Technologies for Thinning of Fruit  PSU, UC Davis, Clemson, WSU, UM...
Non-Selective Thinning Investigations      In Cooperation with WSU, UC Davis, Clemson, USDA<br /><ul><li>Mechanical Thinni...
Modifying Pruning Practices to Improve Access by Mechanical Thinners
Various combinations of labor efficient thinning methods</li></li></ul><li>
2009 – First Year of Trials for Multi-State Cooperators-Second Year of Trials in 12 PA Orchard Blocks<br />
New String Technology 2009<br />
Four On, Four Off  <br />
2 On, 2 Off <br />Opposing<br />2 On, 2 Off  <br />
New Strings Compared to OldPerp V<br />
New Strings Compared to OldVase<br />
Timing  Study- 2008<br />Blossom thinning with the string thinner more effective between 20% bloom and petal fall than at ...
Timing Study 2009<br />Hand thinned control<br />String thin, 80% bloom<br />String thin, pink, 1 pass<br />String thin, p...
String Thinner Timing2009<br />
Timing Summary 2008-09<br />Easier visual assessment of flower removal when bloom is open<br />Pink (08): greater set - si...
Pruning Studies 2008-09<br />Perpendicular V<br />Standard, HTC<br />Standard<br />Fan<br />Partial<br />Detail<br />Non-p...
Pruning EffectsPerp. V 2009<br />
Pruning EffectsOpen Center 2009<br />
Perpendicular V and Open Center<br />Most Consistent Results<br />Detail Pruning<br />
New Drum Shaker<br />
Thinning Combinations, 2009<br />Hand thinned control<br />String thin, 60% bloom<br />NEW Drum Shaker, 60% bloom<br />NEW...
Peach Drum Shaker 2009<br />
Combinations Summary 2008-09<br />String thinner at bloom / drum shaker for green fruit thinning an effective combo<br />N...
Implications for Growers<br />Mechanical thinners are consistent in both reducing labor costs and increasing fruit size<br...
J. Schupp1,T. Auxt Baugher2, S. Miller3, K. Ellis2, Edwin Winseler1, <br />K. Reichard1, J. Remcheck2, S. Wolford3, M. Sch...
Upcoming SlideShare
Loading in...5
×

Innovative ThinKing

793

Published on

This is a summary of two years of research in Pennsylvania on Mechanical String Thinners to remove blossoms.

Published in: Education, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
793
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
14
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • Of course, in the case of peach trees, we want to thin the blossoms or fruitlets to increase fruit diameterAnd to also reduce follow-up hand thinning requirement
  • And to new partnerships
  • Reed Soergel’s orchard
  • Innovative ThinKing

    1. 1. Innovative ThinKingProgress with Two Mechanical Fruit Thinners<br />Jim Schupp and Tara Baugher <br />Penn State University<br />Steve Miller<br />USDA-ARS<br />2009<br />
    2. 2. GOAL: To Increase Crop Valueby Reducing Hand Thinning and Increasing Fruit Size<br />
    3. 3. <ul><li>4 mechanical thinner prototypes
    4. 4. Peach trees trained to perpendicular V (2007, 2008) or vase (2008) </li></ul>Horticultural and Economic Evaluations <br />
    5. 5.
    6. 6. May 2008 covers: AFG, WFG & FGN<br />
    7. 7. White Lady<br />Hand Thinned<br />Blossom Thinned with String Thinner<br />
    8. 8. USDA Specialty CropResearch Initiative<br />Innovative Technologies for Thinning of Fruit PSU, UC Davis, Clemson, WSU, UMD, UIL, USDA <br />Non-Selective and Selective Thinning<br />
    9. 9. Non-Selective Thinning Investigations In Cooperation with WSU, UC Davis, Clemson, USDA<br /><ul><li>Mechanical Thinning at Various Bud Stages
    10. 10. Modifying Pruning Practices to Improve Access by Mechanical Thinners
    11. 11. Various combinations of labor efficient thinning methods</li></li></ul><li>
    12. 12.
    13. 13. 2009 – First Year of Trials for Multi-State Cooperators-Second Year of Trials in 12 PA Orchard Blocks<br />
    14. 14. New String Technology 2009<br />
    15. 15. Four On, Four Off <br />
    16. 16. 2 On, 2 Off <br />Opposing<br />2 On, 2 Off <br />
    17. 17. New Strings Compared to OldPerp V<br />
    18. 18. New Strings Compared to OldVase<br />
    19. 19. Timing Study- 2008<br />Blossom thinning with the string thinner more effective between 20% bloom and petal fall than at earlier bud stages <br />Flower removal<br />Fruit set<br />Hand thinning requirement<br />All timings effective for increasing fruit size<br />
    20. 20. Timing Study 2009<br />Hand thinned control<br />String thin, 80% bloom<br />String thin, pink, 1 pass<br />String thin, pink, 2 passes<br />String thin, petal fall<br />
    21. 21. String Thinner Timing2009<br />
    22. 22. Timing Summary 2008-09<br />Easier visual assessment of flower removal when bloom is open<br />Pink (08): greater set - similar increase in size<br />Pink (09): more thinning than at 80% bloom<br />PF (09): more effective than earlier stages<br />
    23. 23. Pruning Studies 2008-09<br />Perpendicular V<br />Standard, HTC<br />Standard<br />Fan<br />Partial<br />Detail<br />Non-pruned<br />Open Center<br />Standard, HTC<br />Standard<br />Partial<br />Detail<br />
    24. 24. Pruning EffectsPerp. V 2009<br />
    25. 25. Pruning EffectsOpen Center 2009<br />
    26. 26. Perpendicular V and Open Center<br />Most Consistent Results<br />Detail Pruning<br />
    27. 27. New Drum Shaker<br />
    28. 28. Thinning Combinations, 2009<br />Hand thinned control<br />String thin, 60% bloom<br />NEW Drum Shaker, 60% bloom<br />NEW Drum Shaker, 35 DAFB<br />NEW Drum Shaker, 60% B + 35 DAFB<br />
    29. 29. Peach Drum Shaker 2009<br />
    30. 30. Combinations Summary 2008-09<br />String thinner at bloom / drum shaker for green fruit thinning an effective combo<br />Need more work on drum shaker at bloom / drum shaker for green fruit thinning<br />New drum shaker at green fruit stage more consistent than previous citrus shaker prototypes<br />Smaller rods, tilting drums,<br /> front or side-mount<br />
    31. 31. Implications for Growers<br />Mechanical thinners are consistent in both reducing labor costs and increasing fruit size<br />Blossom thinning with string thinner is viable and commercially available option<br />Green fruit thinning with drum shaker is promising/ under development<br />In future, combinations of bloom and fruit thinners may <br />help growers better target fruit loads with little hand thinning<br />Reduce risk of over-thinning<br />
    32. 32. J. Schupp1,T. Auxt Baugher2, S. Miller3, K. Ellis2, Edwin Winseler1, <br />K. Reichard1, J. Remcheck2, S. Wolford3, M. Schupp1, C. Musselman2, A. Leslie2, R. Rohrbaugh2, J. Koan2, C. Anders2, E. Moore1, T. Kon1, C. Kuntz11Penn State Fruit Research and Extension Center, Biglerville, PA2 Penn State Cooperative Extension in Adams County, Gettysburg, PA3 USDA-ARS Appalachian Fruit Research Station, Kearneysville, WV<br />Penn State College of Agricultural Sciences research, extension, and resident education programs are funded in part by Pennsylvania counties, the Commonwealth of Pennsylvania, and the U.S. Department of Agriculture.<br />Where trade names appear, no discrimination is intended, and no endorsements by Penn State Cooperative Extension is implied.<br />This publication is available in alternative media on request.<br />The Pennsylvania State University is committed to the policy that all persons shall have equal access to programs, facilities, admission, and employment without regard to personal characteristics not related to ability, performance, or qualifications as determined by University policy or by state or federal authorities. It is the policy of the University to maintain an academic and work environment free of discrimination, including harassment. The Pennsylvania State University prohibits discrimination and harassment against any person because of age, ancestry, color, disability or handicap, national origin, race, religious creed, sex, sexual orientation, gender identity, or veteran status. Discrimination or harassment against faculty, staff, or students will not be tolerated at The Pennsylvania State University. Direct all inquiries regarding the nondiscrimination policy to the Affirmative Action Director, The Pennsylvania State University, 328 Boucke Building, University Park, PA 16802-5901; Tel 814-865-4700/V, 814-863-1150/TTY.<br />
    33. 33. The authors acknowledge the valuable contributions ofA. Betz, S. Betz, D. Kilmer, R. Fitzpatrick, P. Baugher, S. Aguilar, C. Baugher, J. Cline, A. Diaz, B. Hollabaugh, D. Kuhn, K. Lesser,J. Lott, D. Lott, C. McCleaf, D. Mickey, E. Rankin, T. Salada, D. Wenk, and B. Wenk The authors greatly appreciate the financial support ofThe State Horticultural Association of Pennsylvania Extension Committee, the Washington State Tree Fruit Research Commission, The USDA Specialty Crops Research Initiative Program, the Pennsylvania Department of Community and Economic Development First Industries Program, the Penn State College of Agriculture Seed Grant and Sunday Grant Programs, the Pennsylvania Peach and Nectarine Board, the California Canning Peach Association, and the Robert C. Hoffman Foundation <br />
    34. 34. For more information, please visithttp://www.abe.psu.edu/scri/<br />
    1. A particular slide catching your eye?

      Clipping is a handy way to collect important slides you want to go back to later.

    ×