Persimmon (Diospyros kaki) rises well in U.S. Department of Agriculture plant hardiness zones 7 through 10, where they endure a variety of soil types, in addition to moist and drought conditions. Although this adaptability makes it easy to develop persimmons, in addition, it makes it tough to eliminate an established persimmon. After cutting a persimmon tree, the trunk will grow back sprouts and suckers frequently emerge anywhere along the tree root system. Chemical herbicide treatment can help control those persistent persimmons, although repeat program is frequently necessary to achieve complete eradication.
Prepare a 25-percent herbicide solution containing 1 part herbicide and 3 parts of a surfactant, such as diesel fuel or mineral oil. Pour the herbicide alternative in a garden sprayer. Choose a chemical herbicide with a proven effectiveness against persimmons, such as glyphosate, imazapyr or dicamba. Chemicals such as triclopyr ester, hexazinone and tebuthiuron don’t provide effective control of persimmon, particularly when employed as a foliar spray. For optimum control of persimmons, mix two distinct herbicides in the solution.
Spray the leaves of the persimmons using the herbicide alternative until the leaves are fully saturated, either in early summer or late summer but not during the hottest summer months. The herbicide translocates through the leaves down into the main system to kill the persimmons. This system works best for fast application to large stands of persimmons up to 15 feet tall when the persimmons have gone uncontrolled for several decades. If the foliar spray application process is used, don’t use diesel fuel since the surfactant because diesel fuel kills the leaves before translocation can occur. In this case, mineral oil or even vegetable oil is ideal to coat the leaves using the herbicide.
Spray the herbicide solution into the lower 20 inches of the smooth bark on persimmons with trunks less than 6 inches in diameter. Use this technique during the dormant period in winter for the best outcomes. This application system is not as practical with large stands of persimmon brush, but may be necessary if the foliar spray treatment is ineffective. Mix the herbicide solution with diesel fuel for the best results together with the basal bark treatment.
Cut down trees having a diameter of greater than 6 inches, leaving a stump that protrudes a couple of inches from the ground. If a large persimmon tree has been cut, make a fresh cut across the stump so the herbicide proves most successful.
Spray the herbicide alternative on all sides of the stump and on the exposed fresh cut on the top of the stump. As an alternative, you can mix the herbicide option in a little bowl and then apply the solution using a paintbrush for much better control over the program. A 25-percent herbicide solution should provide adequate control together with all the cut stump method, but you can use a 50- to 100-percent alternative for greater results in case the persimmons are a persistent problem.
Allow a few weeks for the chosen program method to take effect, transpiring the herbicide from the point of program down to the origins. Reapply the herbicide or attempt a different program method if no noticeable change happens following three weeks. Duplicate as required when new shoots emerge until the persimmons are fully eradicated.