Production Blog
Dan Davidson DTN Agronomist

Wednesday 09/12/07

Fall Control of Winter Annuals
Winter annuals are more common place in glyphosate-based no till and min till cropping systems. Fall is a good time to control them when weeds are small and vulnerable. If you do it in the fall, do not wait long after harvest to spray.[Read Full Blog Post]
Posted at 12:41PM CDT 09/12/07 by Dan Davidson | Post a Comment
Comments (2)
Your comment regarding Fall application of atrazine caught my eye. I just read the label on Aatrex and I don't see a printed restriction for Fall application on ground that will be planted to corn next Spring. Could you let me know where to find this information?
Posted by Dan Rayburn at 12:25PM CDT 09/13/07
Bob Hartzler, weed scientist at Iowa State University said "Atrazine isn’t labeled for fall applications (except for Kansas where they have a Special local need label). I believe fall applications were allowed back in the old days, but this use was cancelled in the 1980’s when the label was cutback considerably due to concerns of atrazine moving into water supplies." However their may be exceptions since states have to approve and register each and every pesticide sold. If your state is different than normal, a supplement is issued. If you want to know if you can legally apply atrazine in the fall check with you state Department of Agriculture.
Posted by Daniel Davidson at 8:44AM CDT 09/14/07
 
Scout for Late Season Diseases in Corn
Now is the time to scout for late season diseases in corn and stalk rot is your primary disease candidate at this time.[Read Full Blog Post]
Posted at 11:07AM CDT 09/12/07 by Dan Davidson | 0 Comments | Post a Comment
 
Corn Test Weight - Highs and Lows
Illinois agronomist believes we put too much emphasis on corn test weight today and that signs of early dent do not mean low test weight.[Read Full Blog Post]
Posted at 10:08AM CDT 09/12/07 by Dan Davidson | Post a Comment
Comments (1)
Excellent article, I agree! So much feed grade corn has been bred that is higher in protein but lower in test weight. If I am going to the river, I like the bright orange heavy test weighted hybrids but I get more yield from the light yellow feed grade hybrids. You sure want the orange kernals in the corn burner!
Posted by Ed Winkle at 9:53AM CDT 09/14/07
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