Skip to main content
ARS Home » Research » Publications at this Location » Publication #101352
Title: SPRING MILESTONE SYSTEMS FOR GRASS CONTROL IN LOUISIANA SUGARCANE

Author
item Richard Jr, Edward
item CASTNER, E - DUPONT AGRICULTURAL PROD

Submitted to: American Society of Sugar Cane Technologists
Publication Type: Abstract Only
Publication Acceptance Date: 6/17/1999
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Field experiments were conducted during 1997 and 1998 to evaluate the effectiveness of spring applications of Milestone applied alone at 8 oz ai/A and in mixture with other herbicides commonly used in plant-cane crops. When compared to standard applications of Prowl plus Karmex at 48 plus 32 oz ai/A or Sencor/Lexone at 32 oz ai/A, Milestone provided higher levels of annual ryegrass control (85%) than the standards (<10%) and controlled itchgrass (95%) and seedling johnsongrass (66%) as effectively as the Prowl plus Karmex mixture. Sencor/Lexone provided unacceptable levels of annual ryegrass and itchgrass (55%) control but did control seedling johnsongrass (84%) better than Milestone alone (66%) or the Prowl plus Karmex standard (67%). Inclusion of Karmex, Aatrex, or 2,4-D, each at 32 oz ai/A, or Gramoxone at 10 oz ai/A with Milestone did not increase itchgrass control, but increased seedling johnsongrass control to levels similar (71 to 80%) to that observed with metribuzin. Annual ryegrass control with Milestone was also increased when Karmex (94%) or Gramoxone (99%) was included. In these experiments, applications of Milestone in March to emerged sugarcane resulted in considerable leaf injury with visual estimates of injury 19 to 29 days after treatment ranging from 8 to 75%. Despite the early season crop injury, cane yields for treatments containing Milestone were equivalent to the standards suggesting that the injury observed initially following postemergence applications of Milestone was only transient in nature.