When applicators are using foam markers it is essential that the foam marks last long enough and are visible when you make the next pass. Background For several decades, various types of field marking devices have been used to increase the accuracy of chemical and fertilizer applications. Flags, stakes, fence posts, tissue, disc markers, and foam have all been used for this purpose. As sprayers improved in quality, the boom width grew, making it more difficult to prevent costly skips and overlaps. Foam markers have been proven to be the most effective marking system for just pennies per acre.
Additional savings come by preventing crop damage from skips or overkill.
Performance of foam markers varies considerably. An effective foam marker is dependable and durable, and has adequate capacity to produce quality foam that will last in the field. Due to today's high chemical costs a marking system is essential for accurate and economical spraying. Increased accuracy prevents costly skips and overlaps. Using less chemical provides valuable savings to growers.