FW: Vegetable disease alert - Late blight confirmed in PA
al...@futureharvestcasa.org
FYI
-----Original Message-----
From: "Tianna Dupont" <st...@PSU.EDU>
Sent: Monday, June 4, 2012 5:18pm
To: STARTFA...@LISTS.PSU.EDU
Subject: FW: Vegetable disease alert - Late blight confirmed in PA
Just got this message from Dr. Beth Gugino. Late blight was confirmed today in Blair and Franklin Counties. Please see the attachment (pasted in below) from Beth.
Recommendations to protect your crop can be found in the 2012 Commercial Vegetable Production Guide at: http://extension.psu.edu/vegetable-fruit/production-guides/2011-comercial-vegetable-guide
For organic growers see the Cornell Organic Potato Production Guide and Organic Late Blight Management and Potato Organic Late Blight Management.
Please do not hesitate to call me if you think you have late blight in your field.
S. Tianna DuPont
Sustainable Agriculture Educator
Penn State Extension
extension.psu.edu/vegetable-fruit Join our blog for the latest pest & disease updates and more
From: Beth K. Gugino
Sent: Monday, June 04, 2012 3:58 PM
To: Beth K. Gugino
Subject: Vegetable disease alert - Late blight confirmed in PA
Importance: High
Hi everyone –
Unfortunately today, late blight was confirmed in a commercial tomato field in Blair Co. and on both tomatoes and potatoes in a commercial field in Franklin Co. Additional unconfirmed reports have come in from commercial potato fields in central PA as well. Attached is a disease alert please distribute as needed. This same information has been posted on our website. Samples have been submitted to Bill Fry for genotyping. I will let you know as soon as I hear back.
Please let me know if you have any questions.
Thanks,
Beth
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Beth Krueger Gugino, PhD
Assistant Professor – Vegetable Pathology
Department of Plant Pathology
College of Agricultural Sciences
The Pennsylvania State University
219 Buckhout Lab
University Park, PA 16802
Phone: 814-865-7328
Fax: 814-863-7217
Email: bkgu...@psu.edu
Extension: http://extension.psu.edu/vegetable-fruit
Beth K. Gugino Assistant Professor Vegetable Pathology Department of Plant Pathology 219 Buckhout Lab University Park, PA 16802 Phone: 814-865-7328 Email: bkgu...@psu.edu Web: http://extension.psu.edu/vegetable-fruit
Pennsylvania Vegetable Disease Alert
June 4, 2012
Late Blight Confirmed on Tomato and Potato in Pennsylvania
Today late blight was confirmed in a commercial tomato field Blair County, PA and on both tomatoes and potatoes on the same commercial farm in Franklin County, PA. These are the first confirmed reports of late blight in Pennsylvania and on tomato in the region. There have also been several unconfirmed reports of late blight in commercial potato fields in central PA. We are in the process of confirming these reports.
With the forecasted cool and wet weather it is very important to be using a protectant fungicide program at the very least. Commercial fungicide recommendations for managing late blight can be found in the 2012 Commercial Vegetable Production Recommendations Guide. Organic growers especially those in the central and south central part of PA should be applying a regular copper-based fungicide program. Copper is the most effective product if you are managing late blight organically. If you suspect late blight on your farm, please let me know via email at bkgu...@psu.edu or by phone at 814-865-7328.
The two previous reports of late blight on potato in central New Jersey and on Long Island have been determined to be US23. This is genotype was dominate one isolated in 2011 across the Northeast. US23 is characterized as the A1 mating type, pathogenic on both tomato and potato and is sensitive to the active ingredient mefenoxam (Ridomil). Samples from these most recent confirmations in PA are being sent to Bill Fry’s lab at Cornell for genotyping.
I also want to make you aware (or remind you) of another available resource to help you remain ahead of late blight. The USAblight website (usablight.org) was designed as a central portal for information on late blight. It contains information regarding where the latest outbreaks have been reported and one what crops. An alert system is also available that will send you email or text alerts that late blight has been confirmed within a personally defined radius from your location. There is also information about how to identify the disease and links to management recommendations.
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