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Ohio State University Extension


C.O.R.N. Newsletter: 2015-36

  1. Pattern change is coming!



    Temperature RISK:

    Temperatures will continue to be several degrees above normal into much of November. However, the real change comes with a wetter pattern as has been discussed for several weeks now. The drier pattern of the last few months is about to end for a while.

    Storm RISK:

    The first storm Oct. 27/28 will bring widespread 1 inch rain to Ohio with isolated totals of 2 inches. The next storm will arrive about Nov. 1 with another near 1 inch event possible. Another storm will arrive later in the first week or November.

    Rain RISK:

    Expect the wetter than normal pattern to last until at least mid-November before some drying returns. Rainfall through mid-November will average 2-4+ inches with normal being 1.25-1.75 inches. On average we should expect about twice the normal rainfall.

    Snow RISK:

    With the warmer than normal temperatures, little if any snow is expected the next several weeks.

    Freeze RISK:

    The risk for freezes remains at or below normal the next several weeks. We will see a few freezes but they will be limited in nature.

    Wind RISK:

    The risk for autumn wind storms which has been limited to this point will increase the next 1-2 weeks with plenty of energy coming from the Pacific Ocean.

    Winter Outlook:

    All indications are for a warmer than normal winter with precipitation near or slightly below normal.

    El Nino RISK:

    A major El Nino will continue into winter and linger into spring. Early indications are for normal or drier than normal spring.

    You can get the latest 16-day rainfall outlook from the NOAA/NWS/Ohio River Forecast Center at:

  2. EPA Proposes Changes to the Certification and Training of Pesticide Applicators

    Author(s): Mary Ann Rose

    The Environmental Protection Agency (EPA) has proposed a minimum age (18) and stricter standards for certifying applicators of restricted use pesticides (RUPs).   For commercial applicators in Ohio, there is no distinction between RUP and non-RUP users, hence these new proposals potentially affect the certification and recertification of all licensed commercial pesticide applicators in Ohio whether or not they actually use restricted use pesticides. Private applicators are only required to be licensed in Ohio if they use RUPs. 

    Much of what is proposed for the stricter federal standard is already required by Ohio Law; for example, Ohio pesticide applicators already take closed book exams, must recertify on a three-year schedule, and keep pesticide records.  The proposed changes would however significantly increase the recertification requirements for Ohio pesticide applicators.  The EPA has proposed that all applicators will be required to take six units (50 minutes) of core plus three (private) or six (commercial) units per category every three years.    An Ohio commercial applicator licensed in one category who is now required to take five hours of recertification would have to attend twelve 50-minute sessions every three years.  An Ohio private applicator licensed in one category who now needs 3 hours of training to recertify would have to attend nine 50-minute sessions every three years.  Applicators would be required to present identification at exams and recertification programs.  For private applicators, the fumigation category would be split into soil and non-soil fumigation categories.   There also would be an annual training requirement and minimum age of 18 for trained service persons, who under current Ohio law only require a single, verified training prior to occupational exposure to pesticides. 

    The public may comment on the EPA’s proposal through November 23, 2015; there have been formal requests for an extension to the deadline.  Comments may be submitted to the EPA at in docket number EPA-HQ-OPP-2011-0183. Learn more about the proposal and certification for pesticide applicators:


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.


Andy Michel (State Specialist, Entomology)
Eric Richer, CCA (Field Specialist, Farm Management)
Glen Arnold, CCA (Field Specialist, Manure Nutrient Management )
Jason Hartschuh, CCA (Field Specialist, Dairy & Precision Livestock)
Laura Lindsey (State Specialist, Soybean and Small Grains)
Les Ober, CCA (Educator, Agriculture and Natural Resources)
Mark Badertscher (Educator, Agriculture and Natural Resources)
Mike Gastier, CCA (Educator, Agriculture and Natural Resources)
Peter Thomison (State Specialist, Corn Production)
Pierce Paul (State Specialist, Corn and Wheat Diseases)
Sam Custer (Educator, Agriculture and Natural Resources)
Sarah Noggle (Educator, Agriculture and Natural Resources)
Steve Culman (State Specialist, Soil Fertility)


The information presented here, along with any trade names used, is supplied with the understanding that no discrimination is intended and no endorsement is made by Ohio State University Extension is implied. Although every attempt is made to produce information that is complete, timely, and accurate, the pesticide user bears responsibility of consulting the pesticide label and adhering to those directions.

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