Agronomy and Horticulture Department


Date of this Version



Insect Science, Plant Disease, & Weed Science, University of Nebraska Cooperative Extension, Institute of Agriculture and Natural Resources 87(9) (May 15, 1987)


Copyright 1987 University of Nebraska


In This Issue:

  • Postemergence Weed Control in Corn
  • Algae and Moss Control in Water Tanks
  • Summer Hours
  • Combination Herbicides- What’s in A Name?

Postemergence Weed Control in Corn

Some of our early planted corn is ready for postemergence weed control. Suggestions for effective control include the following:

When using atrazine with oil, annual grasses are best controlled when less than 1 1/2" tall. Bladex 80W or 90DF can also be used postemergence but omit the oil. Tandem in combination with atrazine or Bladex increases postemergence activity. Bladex should be used when corn is 4" or less. Apply Marksman when corn is under 5".

Buctril or Brominal alone or in combination with atrazine should be applied when most broadleaf weeds are under 6". Laddok should also be used before broadleaf weeds reach 6". Use drop nozzles when applying Banvel or 2,4-D to taller corn. Observe all label cautions on crop heights, rates, and safety to nearby crops, gardens, and windbreaks.