VII. CONTROL OF WEEDS ALONG FENCEROWS. 

 DITCHBANKS, ROADSIDES. UTILITY LINES, 

 AND OTHER NONCULTIVATED AREAS 



WOODY PLANTS 



Foliage Sprays 



Woody plants and weeds, including mixed brush species : Esters of 

 2,4-D, 2,4,5-T, silvex, or MCPA at 2 to 4 pounds per 100 gallons of water, 

 applied as a drenching foliage spray. A mixture of 2,4-D and 2,4,5-T is 

 suggested for control of mixed brush species, some of which are tolerant to 

 one of the herbicides but not the other. A drenching foliage spray of AMS 

 at 3/4 pound in 1 gallon of w^ater also w^ill effectively control mixed brush 

 species. 



Basal Sprays During Growth or Dornnant Periods 



Trees and brush less than 6 inches in diameter : Esters of 2,4-D, 2,4,5-T, 

 or mixtures of these herbicides at 8 to I6 pounds in 100 gallons of diesel 

 oil applied as a basal spray during either dormant or active growth periods. 

 2,4,5-T is much more effective than 2,4-D on many species. A gallon of 

 solution is enough to spray about 100 diameter inches, that is, fifty 2-inch 

 trees or tw^enty-five 4-inch trees. Apply the spray to the entire basal area 

 of all stems, completely wetting the bark to a height of 6 to 12 inches. Basal 

 treatment usually is more effective than foliage applications on tolerant 

 species. 



Cut Surface Treatments 



(1) Frill application : Esters of 2,4,5-T or 2,4-D at 8 to 16 pounds in 100 

 gallons of diesel oil applied in the frills made by overlapping ax cuts through 

 the bark near the base of the tree. The 2,4,5-T is much more effective than 

 2,4-D on many species. Apply the solution until frills are wet. This treat- 

 ment, which gives good control of trees 6 inches in diameter or larger, 

 also is suggested for killing trees with thick bark. 



(2) Cup or notch treatment : l/2 ounce (about 1 tablespoon) or more of 

 AMS crystals per notch in notches nnade not more than 6 inches apart 

 around the base of stems and, when possible, on root collars. This treat- 

 ment will kill trees up to 10 inches in diameter when used any time through- 

 out the year. 



(3) Tree injections : Esters of 2,4,5-T at 24 to 48 pounds in 100 gallons of 

 diesel oil will control trees under 6 inches in diameter when injected into 

 outer sapw^ood w^ith a tree injector. Injections should be made not more than 

 2 inches apart around the base of stems, and not less than I/6 fluid ounce 

 {about 1 teaspoon) of the solution should be applied in each injection. 



Stumps and Stump Sprouts 



(1) 2,4,5-T, or mixtures of 2,4-D and 2,4,5-T, at 8 to 16 pounds per 100 

 gallons of diesel oil applied so that tops and sides of freshly cut stumps are 

 completely wet to ground level. All exposed roots should be sprayed. 



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