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24 <br />x Frill cutting is a variation of girdling in which a series of downward angled cuts are made completely around the tree, leaving the <br />partially severed bark and wood anchored at the bottom. Frilling is done with a saw, ax or hatchet. <br />x There will need to be a follow up foliar in the area for any resprouts the following growing season. <br />x Trees that are basal or frill cut will need to be cut down and mowed up after a minimum of 4 weeks have passed. This is to allow the <br />herbicide time to translocate to the root system. <br />Woody follow up maintenance <br />x A follow-up foliar herbicide treatment should occur on any resprouting woody vegetation in the summer/fall following forestry <br />mowing. <br />x Spray operators should take care to spray all leaf surfaces of targeted species and avoid spraying only the top layer of leaves. <br />x An herbicide indicator dye must be used with the herbicide. <br />x XĖīīϙŘÍťôϙċĺŘϙċĺīĖÍŘϙÍŕŕīĖèÍťĖĺIJϙĖŜϙѵ͔҇͘ϟ <br />x Use caution to minimize overspray during herbicide application. <br />Woody herbicide <br />application <br />specifications <br />General Application <br />x Ideal herbicide application timing: Basal bark application in winter, foliar treatment in late summer/early fall, cut stump treatment <br />during non-sap flow chemical is water based and conditions are not right. <br />x Triclopyr ester (Garlon 4 ultra or approved equivalent) is preferred for all winter, early spring, and late fall applications (cut stump, <br />basal stem or foliar treatment), unless otherwise stated. <br />i. An oil-based, carrier must be a product specifically designed for herbicide use (e.g. Diluent Blue™); use of diesel fuel as a <br />carrier is not allowed. <br />ii. Amine formulations (e.g. Garlon 3a) are preferred for summer applications (June, July, August) to limit the potential for <br />volatilization and off target impact of the chemical. <br />x For cut stump or basal stem treatment in wetland or near aquatic areas, only aquatic-rated herbicides containing active ingredient <br />Triclopyr-amine are approved. <br />x Label directions must be followed. Active ingredient must be of sufficient percentage to be effective. <br />x Blue dye must be added to herbicide mix (this is in addition to any blue coloring included in Diluent Blue or other ingredient). <br />x Herbicide must be spot applied to stumps or basal stems with backpack sprayer or handheld sprayer. Boom or similar sprayers are <br />expressly prohibited. <br />x Foliar application to cover >50% of leaf surface area of each individual plant. Care for minimizing overspray must be used during all <br />herbicide applications (stump treatment and foliar treatment). <br />x Original herbicide and carrier containers complete with labels must be on-site or in parking lot, and available for inspection at all <br />times. <br />x Cut stumps must be treated within two (2) hours of cutting. <br />x Herbicide must be applied under dry ambient and dry stump conditions that will persist for at least 24 hours from time of application. <br />x Spill kit(s) must be on site at all times.