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Agronomic Crops Network

Ohio State University Extension


C.O.R.N. Newsletter: 2014-18

Crop Observation and Recommendation Network

C.O.R.N. Newsletter is a summary of crop observations, related information, and appropriate recommendations for Ohio crop producers and industry. C.O.R.N. Newsletter is produced by the Ohio State University Extension Agronomy Team, state specialists at The Ohio State University and the Ohio Agricultural Research and Development Center (OARDC). C.O.R.N. Newsletter questions are directed to Extension and OARDC state specialists and associates at Ohio State.

  1. Are you seeing marestail escapes in corn? (Source: OSUE Ag Crops Team)
    Author(s): Mark Loux

    We have received more questions about postemergence marestail control in corn this year than the past 10 years combined.  We do not currently show effectiveness ratings on marestail for

  2. Canada Thistle: one of 21 Ohio Noxious Weeds (Source: OARDC).
    Author(s): Mark Loux

    The potential for Ohio to become infested with Palmer amaranth has led to some interesting discussions about our noxious weed law in recent meetings where I have been a presenter.  With

  3. Author(s): Peter Thomison

    Recent cloudy, cool, rainy weather has slowed growth of corn. Corn seedlings often turn yellow due to low nitrogen uptake and/or limited chlorophyll synthesis under cool, wet