Hello everyone!
We hope you are all doing well as the season begins. Before fire blight sampling starts we wanted to give you all an update on the presence of streptomycin resistant Erwinia amylovora in New York State. After reviewing our data, a reminder to please take extra care when uploading the GPS coordinates of your sample, even small changes can place your sample in a different county. Given that, our maps have updated and you can scroll below for the most up to date information on streptomycin resistance across counties in 2020, 2021, and 2022. With correct GPS coordinates, we can even provide you with a geographical map of fire blight strains across your orchard. For example, for the hypothetical orchard below, Block A has susceptible fire blight (blue circle) and Blocks B and C have susceptible fire blight (blue circle) and resistant fire blight (red triangle). You can use the links in the “Helpful Links” section to find more information on fire blight sample collection and submission, how to manage resistant fire blight, and how to request a farm history if you have sampled with us before.
Farm History:
This year, along with streptomycin resistance testing, we are also offering a growers the opportunity to receive a farm history. This will give growers an idea of the different samples they have sent in over the years, their resistance status, and the years they were submitted. If, after you receive them you are interested in more information (what block they came from, what variety, etc.) you can contact Isabella Magna Yannuzzi imy3@cornell.edu. In order to provide you with the most accurate, helpful information possible, please fill out each section of the fire blight sample submission form as accurately as possible for each sample you send us. Most importantly ensure that the gps coordinates you submit are correct, even a minor change can place your samples in a separate county. GPS coordinates can be collected using google maps and dropping pins, or downloading an app. Having that information helps us frame the data in the most helpful way possible, allows us to determine if there are trends as to which blocks in your orchard have resistance, and allows us generate county level data. Farm History’s are confidential, we will only send the information to the grower and if they request it, to their extension agent as well. Once you have your farm history you are able to share that with whoever you like, but we will not be publicizing them.
Streptomycin Resistance Across Counties (2020-2022):
Counties highlighted in dark purple had both susceptible and resistant strains, those in light purple had only susceptible strains found, and those in red had only resistant strains found. Counties left white did not send in samples in that given year, or the samples received were found to not be fire blight. This is based off the samples our lab collects and receives each year and the results of fire blight confirmation and streptomycin resistance testing.
Helpful Links:
- For Fire Blight Management Recommendations: click here
- For Blossom Protect FAQ: click here
- For Fire Blight Sample Submission Forms and Information: click here
- To request a farm history for your orchard: click here
With any questions please contact one of the following individuals, thank you 🍎
- Isabella Magna Yannuzzi, imy3@cornell.edu, Cornell Agritech
- Kerik Cox, 315-787-2401, kdc33@cornell.edu, Cornell Agritech
- Janet van Zoeren, 585-797-8368, jev67@cornell.edu CCE LOFT, Lake Ontario region
- Dan Donahue, 518-322-7812, djd13@cornell.edu, CCE ENYCHP, Hudson Valley Lab
- Mike Basedow, 518-410-6823, mrb254@cornell.edu, CCE ENYCHP, Champlain Valley
- Dan Gilrein, 631-727-3595, dog1@cornell.edu, Associate AG Program Director, Long Island