Dithiopyr

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Dimension 2EW Herbicide
4.5 out of 5 stars (20)
$152.00
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A professional specialty selective pre-emergent herbicide that controls grass and broad-leaf weeds for commercial and residential cool & warm-season grasses.

Hi-Yield Weed and Grass Stopper with Dimension Herbicide
4.5 out of 5 stars (26)
$25.50
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A selective pre-emergent herbicide that controls Crabgrass and other annual grass and broad-leaf weeds in lawns and ornaments landscapes.

Ferti-Lome Crabgrass Preventer Plus Lawn Food with Dimension 20-0-3
4 out of 5 stars (4)
$34.75
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A selective pre-emergent herbicide and lawn fertilizer that controls Crabgrass and other broad-leaf weeds and fertilizer for cool & warm-season grass.


Ferti-Lome Winterizer and Weed Preventer II For Southern Grasses
4.5 out of 5 stars (3)
$34.75
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A selective pre-emergent herbicide and a 10-0-14 fertilizer that controls Crabgrass and broad-leaf weeds in warm-season grasses.

Dimension Ultra 40WP
5 out of 5 stars (1)
$175.95
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A professional selective pre-emergent and post-emergent herbicide that controls crabgrass and annual grasses plus broad-leaf weeds in cool & warm-season grass.

Pennington Pro Care Crabgrass Plus 22-0-6 .25 Uflexx .172 Dithiopyr Turf Fertilizer
Not Yet Rated
$67.13
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A professional selective pre-emergent herbicide for crabgrass and broad-leaf weeds plus fertilizer for commercial cool & warm-season turf-grass.


Bonide Crabgrass & Weed Preventer
Not Yet Rated
$22.05
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A selective pre-emergent herbicide for cool and warm-season grass that prevents crabgrass and broad-leaf weeds before they become a problem.

Dithiopyr 2L
Not Yet Rated
$264.61
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A professional selective pre-emergent herbicide that controls crabgrass and other weeds in golf courses, sod farms, and other landscapes.

Fertilome Weed Out Pro Turf 25-0-4 Lawn Fertilizer
Not Yet Rated
$36.98
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A selective pre-emergent herbicide plus fertilizer Weed & Feed for Crabgrass and broad-leaf weeds on cool & warm-season grasses.

 

What is Dithiopyr?
Dithiopyr is the active ingredient found in the popular herbibcide Dimension, among others.  As an herbicide  it is considered preemergent meaning that it is only effective if applied before the target weeds emerge. One of the common uses of dithiopyr is to prevent crabgrass from popping up in the spring.

How does Dithiopyr work?  (Mode of Action)
Dithiopyr controls weeds by disrupting microtubules which are neccessary for plant growth, so essentially the target weeds are not able lto grow.  It is important to make the distinction that pre-emerent herbicides do not destroy weeds entirely but rather prevent growth.  That is why they must be applied annually to retain the desired effects.

About Dimension
Dimension Herbicide is a specialty preemergent herbicide containing dithiopyr. When applied early it effectively prevents the growth of  control of crabgrass, crabgrass, goosegrass, chickweed, spurge and Poa annua.  Dimension is appropriate for both residential and commercial lawns. Dimension is also proven effective for use on golf courses, sports turf, landscape ornamentals, container- and field-grown nursery ornamentals, commercial sod farms, and noncrop areas including roadsides.

Toxicity
Dithiopyr is toxic to fish but non-toxic to birds. Products containing dithiopyr typically will carry instructions to keep the chemical away from water supplies and areas of runoff so as not to contaminate  water.

Products Containing Dithiopyr
Hi-Yield Weed and Grass Stopper with Dimension Herbicide
Dimension 2EW Herbicide


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