Farm Talk


May 30, 2012

Stem rust found in Mo. fescue fields

Parsons, Kansas — Late last week, rust on tall fescue was observed in fields from Preston to Weaubleau in Hickory County, in addition to cases reported in neighboring counties.

“There are several species of rust fungi that attack grass plants,” said Brie Menjoulet, agronomy specialist with University of Missouri Extension.

Various forms of rust spores can overwinter in Missouri and can also be blown in from the south as temperatures warm.  The “active” spores are called urediniospores and are produced from pustules that are formed on infected plants.

Pustules appear as a brownish lesion on plant stems, leaves, and seed heads.  

The reddish/orange residue that rubs off onto clothing, boots, animal hair, and blown into the air are the urediniospores.

One pustule can produce tens of thousands of urediniospores and each urediniospore has the potential to form a new pustule when it comes into contact with a droplet of water on a plant. This cycle takes about two weeks and will continue as long as ample moisture and warm temperatures occur.

“Sparse and relatively minor cases of rust are common in Missouri. However, the heavy dews that we have experienced the last few weeks coupled with the minor winter seems to have increased the severity and range of the outbreaks,” said Menjoulet

Rust does not necessarily affect the overall quality of hay or pasture, but it can make fescue harder for cattle to digest and can reduce forage yields.  

Few, if any, cases of bronchial problems have been reported in cattle grazing rust-infected pastures and normal grazing routines can be followed.

Producers should use caution when allowing horses to graze infected pastures or ingest infected hay.  Horses could be more sensitive to inhalation of the spores.

Fescue seed yields can be reduced by as much as 40 percent when severely infected with rust due to lowered photosynthesis.

“Some producers may consider skipping fescue seed harvest all together and using these fields for hay or pasture,” said Menjoulet.

University of Missouri State Forage Specialists Dr. Rob Kallenbach and Dr. Craig Roberts also suggest cutting fescue for hay as soon as possible to avoid increased yield loss.

Fungicide applications can be made, but the results may be unsatisfactory at this stage on maturing fescue stands.

If fungicides are applied, pre-grazing and pre-harvest intervals must be followed as indicated on the label.

For more information, contact any of these MU Extension agronomy specialists in southwest Missouri: Brie Menjoulet in Hickory County, (417) 745-6767; Tim Schnakenberg in Stone County, (417) 357-6812; John Hobbs in McDonald County, (417) 223-4775; or Wyatt Miller in Barton County, (417) 682-3579.£

Text Only
  • wheat_freeze_lodging.jpg Freeze could damage some Kan. wheat

    The hard freeze throughout Kansas in the early morning hours of April 15, could cause some damage to wheat, said Jim Shroyer, K-State Research and Extension crop production specialist. Wheat in the jointing stage is most at risk, he said.

    April 22, 2014 1 Photo

  • cornplantlatemay2.jpg WASDE report eases low crop price fears

    USDA’s April 9 World Agricultural Supply and Demand Estimates continued a series of recent reports that have offered corn and soybean producers a more optimistic grain-price outlook than what was expected for most of the winter, Purdue Extension agricultural economist Chris Hurt says.

    April 15, 2014 1 Photo

  • USDA: Corn acres expected to drop 4%

    The amount of American cropland devoted to corn is expected to shrink about 4 percent this year as farmers devote more acres to soybeans, the U.S. Department of Agriculture said last week.

    April 8, 2014

  • Bt-resistant rootworms ID’d in five states

    Researchers say bugs are developing resistance to the widely popular genetically engineered corn plants that make their own insecticide, so farmers may have to make changes.

    April 1, 2014

  • MU economist: Corn, bean price volatility next 5 years

    Expect volatility in the soybean and corn markets over the next five years, said Pat Westhoff, director of the University of Missouri Food and Agricultural Policy Research Institute (MU FAPRI).
    Look for corn prices to drop to $4 per bushel and soybean to $10 per bushel on average for the next five years, he said.

    March 25, 2014

  • marestail.jpg Plan now to control marestail in soybeans

    Controlling marestail in soybeans has been a big challenge for Kansas no-till producers in recent years.
    Because soybeans are generally planted later in the season, and marestail generally germinates in the fall or early spring, application timing and weed size are critical factors to successful control.

    March 18, 2014 1 Photo

  • Checking alfalfa for winter injury

    In the last couple of weeks, I’ve heard many concerns about alfalfa production for this spring.
    Cold temperatures and lack of snow cover are the two main issues producers are worried about for next season’s crop production, as certainly the alfalfa plant could die if exposed to extremely cold temperatures. In general, alfalfa plants can tolerate up to three weeks of winter injury before the plants are killed.

    March 11, 2014

  • soypods.jpg USDA reports on status of GE crops

    Genetically engineered (GE) varieties with pest management traits became commercially available for major crops in 1996.
    More than 15 years later, adoption of these varieties by U.S. farmers is widespread and U.S. consumers eat many products derived from GE crops — including corn-meal, oils, and sugars — largely unaware that these products were derived from GE crops.

    March 4, 2014 1 Photo

  • wheat-head.jpg Everest still leads Kan. wheat acres

    For the second year in a row, a variety of wheat developed by Kansas State University, is the leading variety in Kansas.

    February 25, 2014 1 Photo

  • RickReimer.jpg Innovation, exports fuel soybean demand

    Brent Hayek is revved up about potential new uses for soybeans, and he is piling up the miles to share his enthusiasm.

    February 18, 2014 2 Photos

Hyperlocal Search
Premier Guide
Find a business

Walking Fingers
Maps, Menus, Store hours, Coupons, and more...
Premier Guide
Seasonal Content