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Title: MILESTONE - A NEW BROAD SPECTRUM HERBICIDE FOR SUGARCANE

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

Submitted to: Proceedings of Southern Weed Science Society
Publication Type: Proceedings
Publication Acceptance Date: 1/27/1998
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Field studies were conducted in Florida, Louisiana, and Texas from 1992-1997 comparing preemergence applications of Milestone to local standards including atrazine, pendimethalin, metribuzin, and terbacil for weed control in sugarcane. Weed control ratings taken 48 to 72 days after preemergence applications at planting or immediately following sugarcane harvest indicate that Milestone at 8, 12, and 16 oz ai/A provides control of seedling johnsongrass, itchgrass, fall panicum, pigweed species, morningglory species, and lambsquarters equivalent or superior to that of the current standard herbicide programs. Visual injury ratings were <10% for all preemergence treatments. In Louisiana, five sugarcane studies were conducted during the 1994/1995, 1995/1996, and 1996/1997 growing seasons to evaluate visual sugarcane injury as well as the effect of Milestone on individual sugarcane yield components. Treatments were applied preemergence in the fall (at planting) and/or early postemergence in the spring (late March/early April). Visual injury ratings taken 19 to 36 days after fall applications were < 5% for all treatments. When visual evaluations were made 19 to 36 days after treatment, spring applications of Milestone resulted in 11 to 14% injury as compared to < 5% for the standard herbicides. At harvest, no significant differences were observed between Milestone treatments and the standard herbicide programs in stalk weight, theoretically recoverable sugar levels, and cane and sugar yields.