One of the last, but most important, steps in producing a cotton crop is harvest preparation. Successful harvest preparation includes scheduling for defoliation and harvest operations, removal of foliage and facilitating boll opening. Successful defoliation has many benefits including increased picker efficiency, elimination of trash in harvested seedcotton, faster drying of dew thereby increasing picking hours per day, straightening of lodged plants and reduction of boll rot incidence.
The activity of harvest aids is very dependent on environmental factors. Moreover, cotton defoliation is a balancing act between leaf injury that stimulates leaf drop, yet does not desiccate and stick leaves on the plant. No one harvest aid tank mix will work in all situations. A good understanding of the influence of defoliation timing and the relative attributes of available harvest aids can help in deciding when to terminate a crop and which harvest aids to use. Read entire publication>>>