SPARC - Strengthening Pear and Apple Resilience to Climate
Extreme temperature events—both heat and cold—have resulted in recent annual insurable losses exceeding $80 million for the U.S. apple and pear industry. These extreme temperature events are forecast to become more frequent. Our knowledge of apple and pear responses to hot and cold temperature extremes is based off older varieties and is insufficient to assess current and future risks for newer varieties.
Our group is made up of 22 scientists from six states (WA, OR, MI, NY, PA, ME) and seven institutions (WSU, OSU, Michigan, Cornell, Penn State, U Maine, and USDA-ARS). We are working to better understand the physiological responses of apple and pear trees to extreme temperatures and seeking to identify the genetic control of those responses, to help growers choose the best varieties to grow. We will also model historical and future risk of extreme temperature events and assess their economic impacts on apple and pear production, which can then inform capital investment decisions and regional cultivar choices. Ultimately, this research will help us refine (or develop new) strategies that continue to help growers limit losses from extreme temperatures.
You can help us achieve this goal. Please complete this voluntary, anonymous survey to help us understand how heat and cold are affecting your orchards and the strategies you use to minimize the resulting losses. Your responses will inform our research and extension activities, so that the tools we develop to assess the risk of losses to extreme temperatures and to mitigate these losses help sustain the U.S. as a leader in apple and pear production in light of the temperature extremes that we will increasingly face in the future.
SPARC SurveyTake the survey in English:
Survey link:https://wsu.co1.qualtrics.com/jfe/form/SV_eyfLFPQZ3dHutUi
SPARC encuestaComplete la encuesta en español:
Enlace a la encuesta: https://wsu.co1.qualtrics.com/...
Upcoming Events
2026 Dyson Agricultural Food
January 12, 2026
Ithaca, NY
2026 Cornell Winter Fruit Webinars
January 22, 2026 : Blueberry Pruning and Soil Health to Minimize Pests and Maximize Yield
Week 1: Blueberry Pruning and Soil Health to Minimize Pests and Maximize Yield
January 29, 2026 : Cost of Production for Fruit Crops
Week 2: Cost of Production for Fruit Crops - A new tool for tree fruit, updates on berry production in NY, and strategies for tracking and using expense data.
February 12, 2026 : Fire Blight Management Updates
Week 3: Fire Blight Management Updates - Pathogen Biology, Defense Inducers, Biopesticides, and Pruning Therapies
February 19, 2026 : Pink and Petal Fall Insecticides - Can We Strike the Right Balance?
Week 4: Pink and Petal Fall Insecticides - Can We Strike the Right Balance?
March 12, 2026 : Inoculating Orchards with Mycorrhizal Fungi
Week 5: Inoculating Orchards with Mycorrhizal Fungi
March 19, 2026 : St. Peachtrick's Day - Cherry Pruning Strategies and Plum Varieties for the Northeast
Week 6: St. Peachtrick's Day - Cherry Pruning Strategies and Plum Varieties for the Northeast
