Corn Newsletter : 2017-27

  1. Palmer amaranth seedhead
    Author(s): Mark Loux

    Palmer amaranth has shown up in a few more places in Ohio this summer at a range of infestation levels, and waterhemp has also become more prevalent. Newly discovered Palmer infestations in some fields were too high to be remediated by walking fields and removing plants, although there is still some potential to mow down weeds and soybeans to prevent seed production and even bigger problems next year. Infestation level in a few other fields was low enough to allow removal of Palmer

  2. Bean leaf beetle variation
    Author(s): Kelley Tilmon, Andy Michel


    Caption: Soybean pod-feeding (photo by Ron Hammond); examples of resulting seed damage (photo by NCSU Cooperative Extension); bean leaf beetle adult


    As the season winds down, soybean growers need to continue scouting their fields, especially later-planted fields that will remain green well into September. As other fields in the area begin maturing and

  3. Frogeye leaf spot
    Author(s): Anne Dorrance

    I must admit that I am a bit surprised at how slow frogeye leaf spot, a foliar leaf spot of soybean, was to show up in fields this summer. Early indications were that it was going to get a good early start. But scouting of fields throughout the state – it was hard to find. It took me 90 minutes before a crop walk in western Ohio in July to find 2 spots! Last week a couple of calls came in, where folks found large round gray lesions on the new leaves. Based on the size of

  4. Western bean cutworm adult
    Author(s): Amy Raudenbush, Andy Michel, Kelley Tilmon

    We are nearing the end of WBCW trap monitoring in Ohio as trap counts continue to decrease across the state. A total of 71 traps were monitored in 23 counties. Overall, 138 WBCW adults were captured, with 11 counties reporting a “zero” for their trap count. The state average also continues to

  5. Fertilizer Spreader
    Author(s): Jeff Stachler

    September 30th is the deadline to receive your Fertilizer Certification. Anyone applying fertilizer to greater than 50 acres must obtain this certification, unless the crop will be feed to livestock or you are only applying start-up fertilizer with the planter.

    The Top of Ohio EERA will be holding one of its last Fertilizer Certification Trainings on August 28, 2017. The Fertilizer Certification meeting will take place at the Palazzo (309 S. Main St.) in Botkins,

  6. Anhydrous Ammonia Application
    Author(s): Mike Gastier, CCA

    The Erie Basin EERA of OSU Extension will offer Ohio Fertilizer Applicator Certification training at 1:30 pm on August 30, 2017 at Independent Ag located at 4341 Sandhill Rd in Bellevue, OH 44811. The store is visible from US Route 20 between Bellevue and Monroeville. No registration is required and there is no charge for this training. For information call the Huron County Extension Office at 419-668-8219.

    Independent Ag will also be having Field Day in the

  7. Digital maps
    Author(s): Kaylee Port, John Fulton

    The Ohio State Precision Ag Team will be hosting a free workshop for tech savvy soybean growers on Friday, September 8, 2017 from 9a-4p at Beck’s Hybrids in London, Ohio. Topics of discussion will include data warehousing, production benchmarking, analysis, in-season monitoring, crop modeling, and recommendations.

    The day’s discussions will focus on understanding potential value of

About the C.O.R.N. Newsletter

C.O.R.N. is a summary of crop observations, related information, and appropriate recommendations for Ohio Crop Producers and Industry. C.O.R.N. is produced by the Ohio State University Extension Agronomy Team, State Specialists at The Ohio State University and Ohio Agricultural Research and Development Center. C.O.R.N. Questions are directed to State Specialists, Extension Associates, and Agents associated with Ohio State University Extension and the Ohio Agricultural Research and Development Center at The Ohio State University.