COMBINATION TREATMENTS FOR CONTROL OF WILD GARLIC AND COMMON MILWEED

FIELD AND GREENHOUSE STUDIES WERE MADE TO DEVELOP AN EFFECTIVE CONTROL MEASURE FOR WILD GARLIC (ALLIUM VINEALE). TREATMENTS BEGINNING IN MID-MARCH, WHEN THE PLANTS ARE ABOUT FOUR INCHES HIGH, ARE MOST EFFECTIVE. PLANTS ARE FIRST TREATED WITH 1 LB/A OF CIPC (CHLORO IPC-ISOPROPHY N-(3-CHLOROPHENYL) CARBEMATE). AFTER GROWTH OF ABOUT TWO INCHES HAS OCCURED (MID-APRIL), THE FOLIAGE IS BRUISED TO MECHANICALLY RUPTURE THE CUTICLE. IMMEDIATELY FOLLOWING, 2, 4-D IS APPLIED AT THE RATE OF 1/2 LB/A. THIS COMBINATION TREATMENT GIVES COMPLETE CONTROL OF WILD GARLIC, INCLUDING PRIMARY BULBS, AND AT LEAST 50 PERCENT REDUCTION OF SECONDARY BULBLETS. LABORATORY, GREENHOUSE, AND FIELD STUDIES LEADING TO THE DEVELOPMENT OF A COMBINATION HERBICIDE FOR ERADICATION OF COMMON MILKWEED (ASCLEPIAS SYRIACA) ARE ALSO DESCRIBED. ONE AND ONE HALF LB/A OF TORDON HERBICIDE PLUS ONE HALF LB/A OF EITHER 2,4-D OR 2,4,5-T (ESTER OR AMINE SALT) APPLIED AT THE LATE BLOOM STAGE OF DEVELOPMENT (MID-AUGUST GIVES COMPLETE CONTROL OF EXISTING MILKWEED AND PREVENTS REGROWTH. /FHWA/

• Supplemental Notes:
  • C-36-48c, HPR-1(8)
• Corporate Authors:

  Indiana State Highway Commission

  Indianapolis, IN  United States  46204

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Moore, D J
  • Cheetham, R D
  • Krawiec, S
  • Clark, R D
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Chemicals; Herbicides; Weed control
• Subject Areas: Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 00218061
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Files: TRIS, USDOT
• Created Date: Jun 1 1971 12:00AM