NCAA NATIONAL CHAMPS
KENTUCKY 78 / UTAH 69
Some moderate to warm weather during the past week has allowed wheat producers to evaluate how much damage may have occurred to the wheat crop from the hard freeze on March 12. Some fields certainly will be replanted to soybeans or corn.
For no-till fields that were in corn last year and no- till planted to wheat last fall, corn planted this season will be exposed to a significant risk of gray leaf spot. Remember that the gray leaf spot fungus survives in residue of corn leaves left on the soil surface. Those corn residues from last year will not have had time yet to decompose substantially.
Thus, if planting corn in one of these fields, select a hybrid with partial resistance to gray leaf spot. A rating of 5 or better (on a scale of 1-9) will provide substantial protection against the disease against all but very high disease pressure, particularly if planted in a timely fashion and not late.
As I indicated in last week's Kentucky Pest News, Mar 23 Ky Pest News