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applied in May, while spot treatments and ropewick
applications can be delayed until June. (See warnings in
the "Tree Fruit Herbicide Recommendations" section.)
Broadcast:2 - 4 lb ai/A. Use 2-4 qt/A Roundup
Ultra 4SC.
Spot Treatment: 2% solution. Use 2 gal Roundup
Ultra 2SC/100 gal spray solution. Apply to wet the
foliage to the drip point.
Ropewick Applicator:Wipe twice; travel in
opposite direction for each wipe.
For newly planted (nonbearing) apples, peaches,
pears, plums, and cherries.
For established (bearing) apples, peaches, pears,
plums, and cherries.
Horseweed is a biennial plant with seed that
germinates in late summer or early fall. The seeding
grows as a rosette during the fall and early spring. The
plant bolts during the summer, flowers, sets seed, and
dies during its second late summer and fall season. The
common name "marestail" is a misnomer. Herbicide
labels that claim "marestail control" may be referring to
another weed.
2,4-D--1 lb ai/A.Use 1 qt/A Weedar 64 or OLF.
Apply in the fall after harvest or in early spring to control
the weed in the rosette stage of growth. It is less effective
after the weed bolts. (See warning in "Tree Fruit
Herbicide Recommendations" section of this bulletin.)
For established (bearing) apples, pears, peaches,
plums, and cherries.
Roundup Ultra 4SC (glyphosate).Apply when the
weed is growing actively. (See warnings in the "Tree
Fruit Herbicide Recommendations" section of this
bulletin.)
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