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Rain and herbicides may have caused damage to soybeans PDF Print E-mail
Thursday, June 27, 2013 12:15 AM


Ag Educator


Putnam County


Valor® or Authority® herbicide damage on soybeans is showing up in Putnam County. These herbicides are pre-plant or pre-emerge herbicides. Heavy rains two weeks ago splashed these products up on the tender leaves of the newly emerging soybean plants and could potentially harm soybean growth. Often the plants appear stunted and the leaves may be crinkled or mis-shaped. Most plants should grow out of this damage but in some cases, the soybeans may need to be replanted. Good growing conditions should help the plants to recover.

Here are some common warnings when using these products. Authority/Spartan contains the single active ingredient sulfentrazone. Do not apply Authority/Apartan if soybeans have emerged, otherwise severe crop injury will result. Valor is similar to Authority and controls many common annual broadleaf weeds. Do not use more than three ounces per acre of Valor per season. Do not use Valor in soybean fields where products containing flufenacet (Axiom, Domain), alachlor (Intro), metolachlor (Dual), or dimethenamid (Outlook) will be used or crop injury may occur.

Cover Crop Field Day: 9 to 11 a.m. on July 2, OARDC NW Ag Research Station 4240 Range Line Road, Custar. View demo cover crop plantings, cereal rye no-till soybean, crimper/roller demo, cover crop supplies discussion. For more information, see

Crop Insurance – Since the planting date of June 5 and June 20 has passed for corn and soybeans, here are some options if you missed the planting date. For details, visit the USDA Risk Management Agency at

Beef Cattle Newsletter – Free newsletter at:

4R’s of Phosphorus Fertilizer Management: 8:30 a.m. to 2:30 p.m. July 18, Custar, NW Ag Research Branch. Phosphorus fertilizer is essential to Ohio crop production when applied at correct rates, timing and placement. But, if nutrient applications are not managed, farm field phosphorus can be lost into water resources and promote Hazardous Algal Blooms (HAB). Major water quality problems have occurred in Lake Erie, Grand Lake St. Marys and other Ohio water resources in recent years. To protect Ohio water resources, phosphorus fertilizer must be put in the right place.

“Right place likely holds the greatest opportunity for improvement (in water quality as it related to farm field P loss),” according to Dr. Tom Bruulsema, the featured speaker on The Right Place to Put Phosphorus.

The program is free but an email RSVP is required to This e-mail address is being protected from spambots. You need JavaScript enabled to view it. . Please include your name and a phone number where you can be reached in the email. Four and a half hours of CCA credits have been applied for including one hour of soil and water and three and a half hours in nutrient management.

From 8 a.m. to noon on July 25: Field Crops Day at Northwestern Agricultural Research Branch: NW Ag Research Station, 4240 Range Line Road, Custar.

Northwest Ohio Precision Ag Technology Day with a Planter Focus: from 8:30 a.m to 3:30 p.m. on Aug. 6, Fulton County Fair, Junior Fair Building, 8514 St. Rt. 108, Wauseon. Free program but RSVP for lunch by Aug. 2.

Manure Science Review: from 8:30 a.m to 3:30 p.m. on Aug. 6 at Hord’s Livestock, 1961 St. Rt. 294, Marion (**1/4 mile west of this address). Manure Science Review is an educational program designed for those involved in any aspect of manure handling, management or utilization, including: Livestock and crop producers, ODNR-SWCD personnel, USDA-NRCS personnel, Extension Educators, Certified Crop Advisors and Professional Nutrient Applicators.


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