Cornell University
Peter Jentsch

Peter J. Jentsch
Extension Associate

Department of Entomology
 Cornell University’s Hudson Valley  Lab
 P.O. Box 727, 3357 Rt. 9W
 Highland, NY 12528
Office: 845-691-7151
Cell: 845-417-7465
FAX: 845-691-2719

2005 M.S. University of Nebraska-Lincoln; Entomology
1982 B.A. S.U.N.Y. at New Paltz, New Paltz, NY; Education
1978 A.A.S. S.U.N.Y. at Morrisville, Morrisville, NY; Natural Resources Conservation

Division of Effort
50% research, 50% extension on arthropod pests of pome fruit, vegetables and grape in Eastern NY.

View CV


Department of Entomology faculty profile page

Video based pest management guidelines (video clips)
Scouting reports (view reports)

Historical Perspectives on Apple Production: Fruit Tree Pest Management, Regulation and New Insecticidal Chemistries.


   Selected Publications and Presentations

Recent Extension and Non-refereed Journals

  • P. J. Jentsch 2007.   Obliquebanded Leafroller Management for Apple Production: Investigating Strategies for Resistance Management with Emerging Insecticide Tools. New York Fruit Quarterly, Fall Issue
  • P. J. Jentsch 2007.   Pear Psylla Management Strategies: Investigating The Use Of Kaolin Clay And Summer Oil For Commercial And Organic Pest Management In NY Pear Production. New York Fruit Quarterly, Summer Issue (view pdf )
  • P. J. Jentsch 2007.   Much Obliqued: Summer OBLR Management Options. Scaffolds Vol.16 No. 14 June 17 (view pdf)
  • P. J. Jentsch 2007.   A Petal Fall Preview. Living with the OP transition or transforming to a Non-OP Insect Pest Management Program from Petal Fall to First Cover ? Scaffolds Vol.8 No. 10, May 7 (view pdf)
  • D. R. Rosenberger and P. J. Jentsch, 2007. Controlling Fabraea Fruit And Leaf Spot On Pears. Scaffolds No. 10, May 21 (view pdf)
  • P. J. Jentsch 2007.   Hudson Valley Psylla Management Options From Pre-Bloom to Petal Fall Scaffolds No. 10, May 21 (view pdf)


  • CCE Orange & Ulster County Onion & Vegetable School, Middletown, NY - 19 March. 2008
    Onion Insects / IYSV Update. (view PowerPoint)

  • NOFA – 26th Annual Organic Farming & Gardening Conference, Saratoga, NY - 26 Jan. 2008
    Pest and Disease Management for Organic Apple. (view PowerPoint with audio)
  • Long Island Agricultural Forum, Riverhead, NY - 11 Jan. 2008
    Using Degree-Day Insect Developmental Models to Effectively Use Reduced Risk Insecticide Management Strategies (view PowerPoint with audio).
  • New England Vegetable and Fruit Conf., NH - 12 Dec., 2008
    Pear Psylla Management Alternatives in Northeast Orchards.
    Apple Pest Mgt, Using Precision Application Timings of Reduced Risk Insecticides
  • In-Depth Apple Pest  Management Workshop 2005-07
     Biology, life cycles, and pest management of major and minor fruit insect pests; toxicological mechanisms of new apple insecticides; uses of degree day predictive  modeling in apple production.
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