Cotton Defoliation Evaluations, 1998

• Main Authors: Silvertooth, Jeffrey C., Norton, Eric R.
• Other Authors: Silvertooth, Jeff
• Language: en_US
• Published: College of Agriculture, University of Arizona (Tucson, AZ) 1999
• Subjects: Agriculture > Arizona; Cotton > Arizona; Crop management
• Online Access: http://hdl.handle.net/10150/197039

A field experiment was conducted near Marana, AZ in 1998 to evaluate the effectiveness of a number of defoliation treatments on Upland (var. Stoneville 474) cotton.. All treatments consisted of materials commercially available in Arizona. Results reinforce general recommendations regarding the use of low rates (relative to the label ranges) under warm weather conditions and increasing rates as temperatures cool. Defoliation treatments of Ginstar alone did a satisfactory job of defoliation and regrowth/topgrowth contol and were very similar to Dropp + Def combination treatments. Adding Prep to Ginstar in this experiment did not improve defoliation or topgrowth control.