PREP Use for Cultural Control

Abstract

Use of a September 13 application of Prep reduced squares 88 percent and 3/4 inch to 7/8 inch diameter bolls 33 percent as available host material for boll weevils and pink bollworms. Approximately 50 percent of retained bolls increased in size by October 15. This treatment permitted single-harvest by October 3 with a loss of 64 pounds of lint per acre when compared to traditional double harvest. Value of yield difference was approximately equal to the cost of second machine harvest.