1st Generation European Corn Borer Management in non-Bt Corn

Authors: Andy Michel, Kelley Tilmon

European corn borer (ECB) was once our most important corn insect, but its population has decreased over the past 20 years, likely due to Bt-corn that provides excellent protection.

Hay and Straw Barn Fires a Real Danger.

Authors: Jason Hartschuh, CCA, Mark Sulc, Sarah Noggle,

We’ve heard of one barn fire here in Ohio this morning and a lot of hay was put up last Thursday ahead of the rain. Much of the hay was wetter than it should have been for safe dry hay storage. Watch those moist bales very carefully for the next two to three weeks!

Determination of ear size in corn well underway

Author: Peter Thomison

During the past two weeks, corn has “exploded” in growth in many Ohio fields. Under favorable growing conditions corn plants can grow nearly three inches per day between V8 (i.e., the eight leaf collar stage) and V15.

Is yield jeopardized when replants result in excessive stands?

Authors: Peter Thomison, Mark Loux

When widespread replanting occurs as it did this year, situations arise in which the original corn planting is not entirely killed and competes with the replanted corn. To make room for a replant, several herbicide treatments are recommended and these were described in an earlier C.O.R.N.

Interested in becoming a Certified Crop Adviser?

Author: Harold Watters, CPAg/CCA

CCA Exam Registration Closes This Friday – for specialty exams and the basics

Hail injury to corn varies depending on development stage

Author: Peter Thomison

The impact of hail damage is largely dependent on corn’s stage of development. Hail affects yield primarily by reducing stands and defoliating plants. Most of the hail damage results from defoliation.

Upcoming Events

July 11

Western Ohio Precision Ag Day (Miami)

July 17

Crop Walk: Soybean Disease (Champaign Co)

July 19

WARS Field Day (Clark Co)

About C.O.R.N. Newsletter

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.

Contributors:

Glen Arnold, CCA

Field Specialist, Manure Nutrient Management

Mark Badertscher