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  • Corn problem??

    After this years 479's milo experiences, NOW this?

    http://www.no-tillfarmer.com/articles/5049-tar-spot-on-corn-confirmed-in-the-us

    Tar Spot on Corn Confirmed in the U.S.

    September 15, 2015 | Posted in Crop Protection
    Source: Purdue University Extension


    By Kiersten Wise and Gail Ruhl, Botany and Plant Pathologists

    Tar spot, a corn disease not previously reported in the U.S., was identified in Indiana this week. Samples submitted from an Indiana field in the Cass/Carroll county area were diagnosed at the Purdue Plant and Pest Diagnostic Lab (PPDL) and the causal fungus of tar spot, Phyllachora maydis, was confirmed by a National Plant Pathologist with the USDA Animal Plant Health Inspection Service in Beltsville, Md. This is the first confirmation of this disease in the U.S.

    Symptoms of tar spot begin as oval to irregular bleached to brown lesions on leaves in which black spore-producing structures called ascomata form. These structures protrude from the leaf surface, giving the symptomatic areas of the leaf a rough or bumpy feel to the touch. The structures can densely cover the leaf, and may resemble the pustules present on leaves due to infection by rust fungi.






    Lesions with these bumpy ascomata may coalesce to cause large areas of blighted leaf tissue, which can be mistaken for saprophytic growth on dead leaf tissue. Symptoms and signs of tar spot can also be present on leaf sheaths and husks.

    Tar spot can be caused by two fungi, Phyllachora maydis and Monographella maydis. To date, only Phyllachora maydis has been found in Indiana. In the areas where this disease is commonly found (Central and South America), infection by Phyllochora maydis is not considered to significantly impact yield, but infections by Monographella maydis can cause economic damage. Infection and disease development occur under cool, humid conditions.

    Symptoms and signs of tar spot can resemble saprophytic growth on leaf tissue.



    We are still determining the impact (if any) that the disease may have in Indiana. At this point in the year, no in-season management is needed if the disease is present in Indiana fields. However, it is important to alert Extension specialists if you observe the disease to accurately document distribution in the state. If you suspect you have tar spot, please submit samples to the PPDL for diagnosis. More information on sample submission can be found here.

    Black spore-producing structures of the fungus that causes tar spot.


    In the coming weeks, we hope to determine how this fungus arrived in Indiana and what, if any, measures need to be taken to prevent future disease outbreaks. The causal fungi of tar spot have not previously been reported to be seedborne, so there are no phytosanitary restrictions to this confirmation.

    For more information on tar spot of corn, please see the USDA-ARS Diagnostic Fact Sheet: Invasive and Emerging Fungal Pathogens – Diagnostic Fact Sheets.
    - See more at: http://www.no-tillfarmer.com/articles/5049-tar-spot-on-corn-confirmed-in-the-us#sthash.oe8ZvPnE.dpuf

  • #2
    you just wait till that sugarcain transforms over too corn then the fun will start it seams this is the year for new VILLENS in crops milo was a easy crop to grow well not no more with all the new bugs and fungi you can put more in the crop than you can get out corn turn is next if the aphids come over the main problem is the sticky stuff they leave even with the corn leaf dead its still there it will break off and gum the inside of the combine up ----------------------------dave

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    • #3
      Yeah,I've noticed a problem in my corn also.

      I finally started to haul off the 2014 crop this week and one bin has a bunch of weevil in it.

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      • #4
        I thought I was the only one dumb enough to have a lot of 14 corn left. Mine had weevils today too. Hope fully it was sold a while back for delivery now!

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        • #5
          I also faced the same problem with my corn plants but lucky enough that it solved.

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          • #6
            old posts still bring in new readers where you from DK-------------------dave

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            • #7
              And now for my REALLY , BIG, HUGE problem! I still have some old crop corn, no new crop sold and cash corn at the terminal is sub $3.00!

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              • #8
                Originally posted by iadave View Post
                And now for my REALLY , BIG, HUGE problem! I still have some old crop corn, no new crop sold and cash corn at the terminal is sub $3.00!
                When I have a problem like that one I think of it as my "starve the beast" marketing program. Just think of all of the income taxes you will save. Very many of us are going to show this federal government just how bad things are on a cash crop farm.
                “Democracy is the worst form of government, -------------------------------except for all the others.”

                ― Winston S. Churchill

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                • #9
                  has anyone heard of any problems with pioneer seed this year,a friend who is in the seed biz from Nebr.said some pioneer varieties look nice and lush with good stands but no ears,said he's never seen anything like it,will be lucky to make 70 bu

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                  • #10
                    Originally posted by steffy View Post
                    has anyone heard of any problems with pioneer seed this year,a friend who is in the seed biz from Nebr.said some pioneer varieties look nice and lush with good stands but no ears,said he's never seen anything like it,will be lucky to make 70 bu
                    lmfao. seed cost for me is around $58/ac.....that bullchit is around $124/ac. Pioneer has low yield and high test wt. My hybrid ran over 220 bu/ac last year versus the pioneer 1360 at 180bu/ac. Planting the swigley pos will put you in the poor house. There will be no more pioneer seed on our acres for a long time to come.

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                    • #11
                      He also said some other pioneer varities had bad green snap

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                      • #12
                        Good idea Jabber. I think it will be that way here also. Paid for ground looks to be break even. Trucking income will suck. Driver took the winter off, when he came back the clutch locked up. Truck sat in the shop for a month on that one.2 weeks later the motor mount bolts pulled out of the bell housing. Truck sat in the shop another month. Got the truck out of the shop and some one ran into it 2 weeks later. 3 weeks in the shop. Truck made one round out and back and the new "good" hood the insurance is supposed to buy is coming apart so we will be down again.
                        I am seriously thinking about having a sale and being done with it. Probably the auctioneer would abscound with the funds.......
                        Just to make it a corn problem I had to hire some of my corn hauled!

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