[Fhb-update_ma] FHB Update from PA, 05/21/18

FHB Updates - Mid Atlantic SWW Region fhb-update_ma at scabusa.org
Mon May 21 08:17:29 EDT 2018


Scab risk continues to be very high across PA this week. If your wheat has
begun to flower, spray at your earliest opportunity to protect it from
infection. Recent wet weather will cause spores to continue to form all
week.
Time your application on fields that are at the beginning of flowering, up
to about 5 days following the beginning of flowering. Remember, sprays
applied PRIOR to flowering will NOT provide significant suppression of scab
or toxin production. Caramba or Prosaro are effective on scab and give
control of most leaf diseases and glume blotch. They do not need to be tank
mixed with another product to control these diseases. If these products are
unavailable, Proline and Folicur (which together provide the same chemicals
as Prosaro) may be tank mixed at a rate of 3 + 3 fl oz/A. Spray nozzles
should be angled at 30° down from horizontal, toward the grain heads, using
forward- and backward mounted nozzles or nozzles with a two directional
spray, such as Twinjet nozzles. Do NOT use any strobilurin-containing
fungicides at heading or beyond.


--Alyssa Collins, Extension Field Crops Pathologist, Penn State University

For more details, go to the FHB Risk assessment tool at
http://www.wheatscab.psu.edu

For the latest news and updates from the U.S. Wheat & Barley Scab
Initiative, go to https://www.scabusa.org



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