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 amaranth plants by a crew of concerned people.

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


  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 the lesions – it was clear that this was a susceptible cultivar.

  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 decrease from 5 WBCW (week ending August 11) to 2 WBCW (week ending August 18).

  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.

  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.

  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 digital tools for soybean production and how growers are utilizing these tools and services. The value and use will be examined and key outcomes will focus on key outcomes centered around:

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.