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Diseases and Their Management in Malting Barley

Bill Verbeten, Field Crops
Northwest New York Dairy, Livestock & Field Crops

June 6, 2013

The first line of defense will be rotational sequences with crops other than barley, wheat, or other cereal crops. This will avoid the buildup of soilborne diseases and of fungal leaf blighting pathogens that survive on the soil surface in infested barley debris. Planting barley after corn should be avoided due to potential exposure to high levels of Fusarium fungus in overwintered corn stalks. Winter barley should be planted after the Hessian fly-free date in September and spring barley as early as possible in April to avoid peak populations of aphids carrying the Barley yellow dwarf virus. Barley seed should be purchased from a reputable seed supplier who can certify high germination and vigor and low levels of seedborne pathogens, especially of smut fungi. Unless the seed is for organic production, seed should be treated with a systemic fungicide for smut control. The most effective management of foliar diseases results from growing varieties with genetic resistance to prevalent diseases such as powdery mildew, Stagonospora blight, leaf rust, scald, and Fusarium head blight. Several of the varieties currently available for malt production are susceptible to one of more of these diseases. Foliar fungicides will play an important role in protection of barley from foliar diseases and Fusarium head blight in the years ahead. I created a table on the following page to provide a resource on which fungicides are currently labeled for control of diseases of importance in New York.

The single most critical disease issue for the future of barley malt in New York is Fusarium head blight because Fusarium-infected grains are contaminated with mycotoxins, particularly deoxynivalenol (DON) or vomitoxin. Malt houses will not purchase barley grain with more than trace levels of DON (well below 1 milligram per kilogram or part per million). Fusarium can resume growth within infested grains during the malting process resulting in DON contamination of malt and beer, and this contamination has also been associated with the undesirable effect of 'gushing' in beer. Fusarium head blight is endemic in our humid New York agricultural environments dominated by corn and other crops that are susceptible to Fusarium graminearum. All barley fields (other than organic) that are intended for malt should be sprayed with one of three effective triazole fungicides (Caramba, Prosaro, or Proline) at Feekes Growth Stage 10.5 when heads first emerge from the boot and are already bearing anthers.


This is article is contributed by: Gary C. Bergstrom, Cornell University


Fungicides Registered for Control of Important Barley Diseases in NY (pdf; 1479KB)


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calendar of events

Upcoming Events

Weed Resistance Management Demonstration and Plot Tour

Event Offers DEC Credits

July 23, 2019
1:00 - 3:00 p.m.
Waterloo, NY

Come join us on July 23 in Seneca County at Quinten Good's farm for a demonstration and walking tour of 16 different pre- and post-emergence treatments in soybean and 12 different treatments and combinations in corn.
  • Tall waterhemp and marestail are two weeds that are resistant to glyphosate and ALS herbicide modes of action in the WNY and Finger Lakes regions.
  • Each year the number of acres with resistant weed populations expands.
  • For herbicides to be an effective tool in weed management, we have to know what chemistries & application timings are most effective against these resistant weeds.

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Income and Real Property Tax Primer-A Learning Circle for Women Non-Operating Land Owners of Ag Land

July 24, 2019
9:00 am - 3:00 pm
Portageville, NY

For many of us taxes can be a mystery, let's have a conversation with the experts about the tax considerations agricultural landowners need to think about. 
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Pasture Walk with the Finger Lakes Graziers-Cancelled!

July 29, 2019
12:45 - 4 pm

The Finger Lakes Graziers pasture walk has been cancelled due to some scheduling conflicts. 
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Announcements

RMA Announces Additional One-time Changes to Prevented Planting Provisions

June 29, 2019

RMA Announces Additional One-time Changes to Prevented Planting Provisions
for 2019 Crop Year

In response to delayed and prevented planting resulting from above average rainfall and wetness, the USDA Risk Management Agency has made a one-time change to the 2019 crop year prevented planting rules that effectively allows silage corn, if planted as a cover crop following local agricultural expert guidelines, to be acceptable as a post-prevented planting cover crop. Under this one-time rule change, producers are allowed to produce this crop while retaining their prevented planting payment. This change couples with previously announced one-time changes to the prevented planting rules - including expanded acceptable uses for post-prevented planting cover crops and a change in the cover crop haying and grazing start date rule - serve to help those struggling to meet their forage needs due to the weather.

Read the full article from the New York Crop Insurance Education Program.

The USDA-RMA states that "For crop insurance purposes, a cover crop is a crop generally recognized by agricultural experts as agronomically sound for the area for erosion control or other purposes related to conservation or soil improvement." PRO-DAIRY specialists Joe Lawrence and Karl Czymmek and Dr. Quirine Ketterings, Professor and Director of Cornell Nutrient Management Spear Program have released a letter stating "Corn on Prevented Planting acres meets these objectives."


New Guidance for Mortality Disposal Issued

NYS Department of Ag and Markets has posted guidelines on disposal of livestock carcasses, in response to reports that some rendering companies have halted pickups from farms.

https://nwnyteam.cce.cornell.edu/submission.php?id=761&crumb=dairy|1

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