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Jordon is the most effective herbicide for leafy %purge control. 1 real large, readily accessible areas with 1 quart/A for <br />three to four consecutive years. More remote areas may he treated with 2 quarts%A for two consecutive years or once <br />eycr■ other year for three years, depending on leafy spurge recovery after the first treatment With either treatment. <br />monitor infestations Retreat with 1 quart. A of 1 urdon when shoot control is less than 7S percent <br />1 urdon may he tank -mined with 2,4 -1) to provide adequate control. Apply 1 to 1.5 pints of 1ordon with I to 1.3 <br />quarts A of 2,4 -1) in spring when leafy spurge flowers When this application is made for three to live consecutive <br />years, leafy spurge shoot control is generally 80 to40 percent and cattle will teed m the area again <br />Hansel Vanquish/Clarity also is effectiv• against leafy spurge. Apply 2 quarts /A in spring for three consecutive years <br />( )ften control is not yen good in the first year hut improves over the next two years. At that time. a maintenance <br />schedule that uses low rates of 13anvcfVanquish Clarity • 2.4 -1) (4 to 8 ounces + 0.5 to 1 quart.'A). or 1 urdon 2.4 4) <br />(I pint ■ 1 quart/A) as needed can he used to keep infestations under control Note: Avoid using writ- active herbicides <br />such as Jordon or Vanquish/Clarity near windbreak plants or other desirable woody vegetation. Plant injury or <br />death can occur. Also. do not allow any herbicide to drift onto desirable woody vegetation for the same reasons. <br />Recently. Plateau tintaiapic) was registered to control leafy spurge in noncrop areas. It can he used safely around trees <br />but may temporarily injure cool - season perennial grasses Apply Plateau at 8 or 12 11. Oi-A in fall, f by 4 O. <br />O, A the following spring at flowering. Add a methylated seed oil at 2 pints'A to the spray solution. A liquid nitrogen <br />tert►liier solution may he added to the spray mixture to increase weed control, hut it may increase cool - season perennial <br />grass injury <br />Canada thistle <br />