Full TGIF Record # 16806
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Publication Type:
Author(s):Branham, Bruce
Author Affiliation:Michigan State University
Title:Late Fall Weed Control
Source:Newsnotes (Michigan Turfgrass Foundation). Fall 1989, p. 12-13.
Publishing Information:Saginaw, MI: Michigan Turfgrass Foundation
Keywords:TIC Keywords: Autumn; Weed control; Broadleaf weeds; Taraxacum officinale; Herbicides; 2,4-D; 2,4-D + Mecoprop + Dicamba; Application timing
Abstract/Contents:Study to see how late into the fall herbicide applications could be made and still achieve effective broadleaf weed control. Plots were rated for dandelion control in the fall after treatment and the following spring. Herbicide formulations included: 2,4-D ester (Esteron 99) to 2,4-D amine (Formula 40), and Trimec (amine formulation) to Super Trimec (ester formulation). All treatments were applied at label rates. Ratings following fall application showed early September treatments gave excellent (> 90%) control. The later, October and November treatments gave poor to no control. However, these results tended to reverse when evaluated next spring. September treatments gave 44-74% control in 1987 and 50-98% control in 1988. Treatments applied in October and November of 1986 yielded 70-96% control. By delaying the herbicide application into October or November, the existing dandelions and new seedling plants are controlled. Also, ester formulated herbicides gave better control than amine formulated herbicides. Tables include treatment, dates evaluated, and % of control.
See Also:Other items relating to: 2, 4 - D in Turf
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Branham, B. 1989. Late Fall Weed Control. Newsnotes (Michigan Turfgrass Foundation). p. 12-13.
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