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LIST B <br /> .eafy spurge - Euphorbia esula <br /> A long-lived perennial that emerges early in spring with an extensive creeping <br /> root system. Roots can extend to a depth of 30 feet. Plants contain a milky <br /> latex that can damage sensitive skin and eyes. A single plant can produce up <br /> to 130,000 seeds that can be projected up to 15 feet from the plant, and are <br /> capable of remaining viable in the soil for at least 8 years. The plant also <br /> reproduces from the large numbers of vegetative buds on its roots. <br /> Identification: <br /> • Flowers: Small, enclosed by yellowish-green heart-shaped bracts. <br /> • Leaves: Alternate, narrow, and linear. <br /> • Stems: Erect, 1 to 3 feet tall, unbranched except at flower clusters. <br /> Control methods: <br /> Biological: <br /> Both sheep and goats are effective grazers of leafy spurge. <br /> Three flea beetles (below) are available for control. <br /> Flea beetle - Apthona nigriscutis <br /> Flea beetle - Apthona czwalinae /lacertosa <br /> Flea beetle - Apthona cyparissiae <br /> Mechanical: <br /> Hand-pulling is not an option due to the vast root system. Frequent <br /> mowing can reduce seed production but will not provide long-term <br /> control. <br /> Chemical: <br /> Fosamine: Bloom to post-bloom stage, only apply in spring. <br /> *Picloram: Spring, right after full bloom, or fall application. <br /> Imazapic: Treat prior to a hard freeze, only in the fall. <br /> 2,4-DAmine: Early spring/fall, only prevents seed production. <br /> *Restricted-use chemical 38 <br />