Home / Crops / Corn / Fungicide application response hinges on disease presence, University of Illinois trial finds

Fungicide application response hinges on disease presence, University of Illinois trial finds

Gil Gullickson 01/17/2011 @ 1:54pm Crops Technology Editor for Successful Farming magazine/Agriculture.com

Several strobilurin fungicides are labeled for application on corn at around the V5 or V6 stage. A 2010 University of Illinois trial examining several application stages found the best response occurred when plant disease is present, says Carl Bradley, University of Illinois (U of I) Extension plant pathologist.

 In 2010, the U of I initiated trials examining several strobilurin fungicide times at two sites:

·      V5 (Fifth leaf, tassel initiation stage)

·      V15 (Kernel number determination stage)

·      VT (Tasselling)

·      R1 (Silking)

At the Urbana, Illinois site, low disease pressure below 2% occurred. No statistically significant difference in disease or yield occurred across all times and treatments.

At Monmouth, Illinois, though, high disease pressure –66% severity—resulted. Fungicide applications at VT or R1 boosted yields by around 20 bushels per acre. Meanwhile, earlier applications made at V5 or V15 had no statistically significant impact on yields or disease.

CancelPost Comment
MORE FROM GIL GULLICKSON more +

From #Classic15: Bayer Rolling Out New SDS… By: 02/26/2015 @ 11:54am Commodity Classic is the week when companies show off their latest products to farmers. Prior to…

USDA Approves Roundup Ready Xtend Crop By: 01/16/2015 @ 9:23am USDA has given approval to Monsanto’s dicamba-tolerant trait technologies – Roundup Ready 2…

8 Ways to Make New Herbicide-Tolerant Traits… By: 12/16/2014 @ 11:57am Rotating different herbicide modes of action and applying pre-emergence residual herbicides in Jim…

MEDIA CENTERmore +
This container should display a .swf file. If not, you may need to upgrade your Flash player.
Brazilian Rain and US Planting Outlook
Agriculture.com

FREE MEMBERSHIP!

CLOSE [X]