Quantcast Herbicides for Woody Plants -Cont. - mo3140138

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HERBICIDES FOR WOODY PLANTS -- Continued
Treatment (pounds/
Time of
Woody Plants
acre; cost/pound)
Controlled
Application
Remarks
2,4-D (1-3; $2.60/lb)
Full-leaf stage and when
Most effective on such spe-
The ester formulation is more effective on woody plants
plants are actively grow-
cies as sagebrush, buck-
as a selective foliage spray that leaves grasses uninjured.
ing.
brush, chamise, manza-
Usually used in mixtures with other herbicides such as,
nita,  a n d  willow.
picloram, triclopyr, and dicamba on most brush species.
Contributes to effective-
Can be used as basal spray when mixed in fuel oil on trees
ness of mixtures with other
less than 5 inches diameter, and as notch or frill treat-
herbicides on many tree
ments. Follow all precautions to prevent drift of spray to
species.
nontarget susceptible plants. Not persistent in soil.
Dicamba + 2,4-D(3 + 3;
Full-leaf stage and when
Many species of woody
Applied as a foliage spray. Phytotoxic amounts can be
$13.75/1b + $2.60/lb)
plants are actively grow-
plants. It is not effective
absorbed from the soil. Take particular precautions to
ing. Cut surface treatments
on such species as red ma-
prevent drift of spray to nontarget sites. Dicamba is
can be done at anytime.
usually used in mixtures with many other herbicides.
ple, red mulberry, black-
jack oak, live oak, salmon-
Different formulations are used in mixtures as basal spray
berry, and southern
and frill and cut stump treatments. Grasses will survive
waxmyrtle.
treatments with dicamba and maintain ground cover.
Fosamine (8-12; $10.00/lb)
Late summer and early fall
Many woody species, in-
Used as a foliage spray on noncropland sites including
during the 2-month period
cluding: birch, blackberry,
land adjacent to domestic water supply reservoirs,
before fall leaf coloration.
black locust, pin cherry,
streams, lakes and ponds. Response to spraying is usually
red oak, salmonberry, su-
not observed until the following spring. Effectiveness may
mac, sweet gum, vine ma-
be reduced if rain occurs on the same day after spraying.
ple, Virginia pine, water
It has a half-life residual period in the soil of about 1
oak, and white oak.
week,





 


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