by Dr. Tom Isakeit, Professor and Extension Plant Pathologist The website, cornmycotoxins.com, has recently added publications on different aspects of mycotoxin contamination of corn, including management with atoxigenic strains. This is a national website devoted to providing information about corn mycotoxins and their management, with contributions from several universities and agencies, including Texas AgriLife Extension Service. The website already has a section on corn ear rot identification (Figure 1) and mycotoxin FAQs. The section on ear rot management is divided into four regional categories. The “Southwest” category includes… Read More →

by Dr. Ron French, Extension Plant Pathologist, Texas A&M AgriLife Extension Service, Amarillo rdfrench@ag.tamu.edu Dr. Tom Isakeit, Extension Plant Pathologist, Texas A&M AgriLife Extension Service, TAMU College Station t-isakeit@tamu.edu In June and July, corn leaves with brown, tan, orange to reddish streaks or stripes were observed in a few fields in Hansford and Hutchinson counties in the Texas Panhandle. The lesions were initially present between leaf veins (Figure 1) but later extended beyond the veins, with a wavy, uneven shape rather than rectangular shape (Figure 2). The lesions… Read More →

by Calvin Trostle, Extension Agronomy, Lubbock, (806) 723-8432, ctrostle@ag.tamu.edu Ron Schnell, Cropping Systems Extension Agronomy, College Station, (979) 845-2935, ronschnell@tamu.edu In May we wrote in Row Crops Newsletter about the effect of harvesting dry grain on wheat yield and income. In June, Soil & Crop Sciences Extension published similar information to highlight the reduced income potential in grain sorghum from harvesting over-dry grain. Reports and on-line calculators for both crops are located on the respective small grains and sorghum pages at http://varietytesting.tamu.edu/ Though we are late in the… Read More →