Biennial & Perennial Weeds
RAGWEED, WESTERN Ambrosia psilostachya Life Cycle: Perennial Plant Description:
An erect, bushy plant growing 1 to 2 feet tall. Leaves are silvery-green and usually covered with fine hairs. A deep, extensive root structure makes it extremely drought-hardy. It can produce more than 200 new shoots from a single plant. Infestations generally start in low areas of cropland and spread to higher ground.
Treatment: Apply 16 to 20 fluid ounces of DuraCor ® herbicide per acre or 24 fluid ounces of NovaGraz ™ herbicide plus 1% MSO v/v per acre, or 1.5 to 2.1 pints of
GrazonNext ® HL herbicide per acre, or 20 to 32 fluid ounces of GrazonPD3 ™ herbicide per acre. Apply in the spring to actively growing plants prior to flowering, usually from spring to early summer. 75
Made with FlippingBook Digital Proposal Creator