Vine killing, or desiccation, destroys the potato tops about two to three weeks before harvest. It stops tuber bulking to hold size in spec, thickens and sets the skin so tubers resist scuffing and skinning during digging, and dries the vines so the harvester runs clean. It is a distinct, time-critical operation that sets up a good harvest.
Operators kill vines chemically with labeled desiccants, mechanically with flail-type vine beaters, or with a combination, matched to the variety, vine vigor, and the target harvest date. Timing is everything: killing too early costs yield, too late leaves green vines that plug the harvester and delay skin set. Experienced crews read the crop and the calendar to hit the window.
Usually priced per acre. Book vine killing on its own or bundled with harvesting so the two operations stay on schedule.
