Fungicide-resistant soybean disease found in La - KNOE 8 News; KNOE-TV; KNOE.com |

Fungicide-resistant soybean disease found in La

Posted: Updated:
Source: AP Source: AP

PALMETTO, La. (KNOE 8 News) - An LSU AgCenter plant pathologist is warning farmers  fungicide-resistant disease has been found in soybeans in the state. 

The soybean disease aerial blight has developed resistance to fungicides, said LSU AgCenter plant pathologist Clayton Hollier. "That's very troubling."

The problem was not unexpected because the rice disease called sheath blight had developed resistance to strobilurin fungicides in the north central area of Acadia Parish in the Mowata community, Hollier said. It has spread to several other nearby parishes.

Sheath blight and aerial blight are basically the same disease, he said.

Hollier cautioned farmers against using low rates of fungicides. He said the practice saves money, but it helps select disease that can survive fungicide applications.

Asian soybean rust has been found in scattered areas throughout the state, but it has not become a problem in commercial fields, Hollier said.

LSU AgCenter rice breeder Steve Linscombe gave an overview of ongoing work at the Rice Research Station to develop new varieties.

Two hybrid lines have done well in tests, but they are too tall for commercial release, Linscombe said, and work on more hybrids is progressing.  

"Within a year or two, we're going to be talking about coming out with a commercial hybrid variety," he said.

LSU AgCenter entomologist Mike Stout said the stink bug threshold probably will be increased as the result of ongoing research. Currently, the threshold is 30 insects per 100 sweeps for the first two weeks after heading, and 100 insects per 100 sweeps made later than two weeks after heading.

LSU AgCenter rice specialist Johnny Saichuk said stink bugs are a bigger pest than usual. He said a field in northeast Louisiana resulted in 15 stink bugs in just one sweep.

But unlike last year, Saichuk said, he has not found any blast disease.

The biggest problem farmers are having is uneven maturity, Saichuk said. Otherwise, this year's crop looks good.

LSU AgCenter weed scientist Eric Webster said he is testing a number of new herbicide products for grasses and broadleaf weeds. He said a Gowan product now used in corn is being tested for use in water-seeded rice.

LSU AgCenter soybean specialist Ron Levy said 180 varieties were planted throughout the state at seven locations to get an idea of yield potential. Levy advised growers to select varieties that perform well statewide.

LSU AgCenter agronomist Dustin Harrell said a new product by the Yaravera company combines ammonium sulphate with nitrogen to reduce nitrogen volatilization.

LSU AgCenter plant pathologist Don Groth said rice farmers should continue to scout for disease.

"Once a disease such as sheath blight is in the top of the canopy, there's nothing you can do," Groth said. "The damage has already occurred."

LSU AgCenter entomologist Jeff Davis urged farmers to rotate insecticides to control stink bugs in soybeans. He said overdependence on acephate is resulting in resistance.

With three to five applications needed for soybeans, he said, farmers also should consider using pyrethroids and neonicotinoids.

LSU AgCenter weed scientist Donnie Miller said herbicide-resistant Italian ryegrass problems can be prevented if fields are kept burned down in the fall before the plants have a chance to become established.

LSU AgCenter economist Kurt Guidry said soybeans are expected to stay in the $13-$14 per bushel range, and rice will sell for $24-$27 a barrel.

  • Most Popular StoriesMost Popular StoriesMore>>

  • Union Parish & LSP make two meth arrests

    Union Parish & LSP make two meth arrests

    Friday, August 29 2014 4:10 PM EDT2014-08-29 20:10:04 GMT
    UNION PARISH, La. (KNOE 8 News UPSO) - Union Parish and State Police narcotics agents made two arrests Thursday on methamphetamine-related charges.
    UNION PARISH, La. (KNOE 8 News UPSO) - Union Parish and State Police narcotics agents made two arrests Thursday on methamphetamine-related charges.
  • Rayville issues boil water alert

    Rayville issues boil water alert

    Thursday, August 29 2013 11:00 AM EDT2013-08-29 15:00:09 GMT
    RAYVILLE, La. (KNOE 8 News) - Tests show the presence of E.coli Bacteria in the Rayville Water System drinking water. The system is alerting all customers to boil water prior to use.
    RAYVILLE, La. (KNOE 8 News) - Tests show the presence of E.coli Bacteria in the Rayville Water System drinking water. The system is alerting all customers to boil water prior to use.
  • 49ers linebacker Aldon Smith suspended by NFL

    49ers linebacker Aldon Smith suspended by NFL

    Friday, August 29 2014 9:30 PM EDT2014-08-30 01:30:05 GMT
    San Francisco 49ers linebacker Aldon Smith has been suspended for nine games by the NFL after a series of off-field legal issues.
    The San Francisco 49ers have been preparing for months to play on without Aldon Smith over an extended period.
  • Katrina evacuees and local vineyard owners remember storm

    Katrina evacuees and local vineyard owners remember storm

    Friday, August 29 2014 11:22 PM EDT2014-08-30 03:22:07 GMT
    WEST MONROE, La. (KNOE 8 News) - Nine years after Hurricane Katrina devastated the Gulf Coast, many evacuees are remembering the storm from their new homes in North Louisiana.
    WEST MONROE, La. (KNOE 8 News) - Nine years after Hurricane Katrina devastated the Gulf Coast, many evacuees are remembering the storm from their new homes in North Louisiana.
  • Teacher accused of having sex with 2 students

    Teacher accused of having sex with 2 students

    Thursday, August 28 2014 9:53 AM EDT2014-08-28 13:53:04 GMT
    BATON ROUGE, La. (AP) - Riverdale Christian Academy administrators have fired English teacher Ashley Dowden following her confession to deputies that she had sex with a 16-year-old student.
    BATON ROUGE, La. (AP) - Riverdale Christian Academy administrators have fired English teacher Ashley Dowden following her confession to deputies that she had sex with a 16-year-old student.
  • Monroe City School Board candidate's qualifications in question

    Monroe City School Board candidate's qualifications in question

    Friday, August 29 2014 4:59 PM EDT2014-08-29 20:59:44 GMT
    MONROE, La. (KNOE 8 News) - The residency of candidate Christopher Brown in the Monroe City School Board race is being questioned.
    MONROE, La. (KNOE 8 News) - The residency of candidate Christopher Brown in the Monroe City School Board race is being questioned.
  • Free elder fraud prevention guide available

    Free elder fraud prevention guide available

    Friday, August 29 2014 12:04 PM EDT2014-08-29 16:04:33 GMT
    BATON ROUGE, La.(KNOE & La. AG) - Louisiana Attorney General Buddy Caldwell Thursday announced a new consumer publication, Elder Fraud Prevention. This 40-page, booklet contains information on how to avoid telemarketing, mortgage, contractor and charity fraud and other types of frauds commonly perpetrated on senior citizens.
    BATON ROUGE, La.(KNOE & La. AG) - Louisiana Attorney General Buddy Caldwell Thursday announced a new consumer publication, Elder Fraud Prevention. This 40-page, booklet contains information on how to avoid telemarketing, mortgage, contractor and charity fraud and other types of frauds commonly perpetrated on senior citizens.
  • LSP kicks off "Drive Sober or Get Pulled Over" campaign

    LSP kicks off "Drive Sober or Get Pulled Over" campaign

    Friday, August 29 2014 7:25 PM EDT2014-08-29 23:25:23 GMT
    MONROE, La. (KNOE 8 News)- This Labor Day weekend traffic will increase tremendously.
    MONROE, La. (KNOE 8 News)- This Labor Day weekend traffic will increase tremendously.
Powered by WorldNow
All content © Copyright 2000 - 2014 WorldNow and KNOE. All Rights Reserved.
For more information on this site, please read our Privacy Policy and Terms of Service.