Quali Pro's Dithiopyr 40WSB Herbicide 20 Ounces (4 x 5 ounce Water-Soluble Bags)
Compare Dithiopyr 40WSB Herbicide to Dimension Ultra 40 WP, ( both contain Dithiopyr 40.0%). Dithiopyr 40 WSB is more economical.
Dithiopyr 40 WSB is an excellent herbicide for pre-emergent control of crabgrass. Other important grasses include kikuyugrass, goosegrass, chickweed, annual bluegrass, barnyard grass, oxalis, ryegrass, spurge. See the product label for all the listed annual grasses and broadleaf weeds. It may be used on established turf, field-grown nurseries, golf courses, landscape ornamentals and more listed locations.
Timing of Application and Irrigation
Quali-Pro's Dithiopyr 40 WSB works on crabgrass up to the beginning of tillering (the stem that shoots out). It will not work on emerged weeds. Use Dithiopyr 40 WSB when seedlings are first visible in established turfgrass. For best results use Dithiopyr 40 WSB before the tillering state begins and germination of target weeds.
It is important to apply Quali-Pro Dithiopyr 40 WSB for early post-emergence crabgrass control only before the tillering of crabgrass. This phase of crabgrass growth is typically the time when you can first easily see the crabgrass in the lawn turf. This early post-emergence activity of Quali-Pro Dithiopyr 40 WSB gives the user an additional 2-8 weeks longer period to make applications while still controlling crabgrass.
Quali Pro's Dithiopyr 40 WSB may be applied as a single application, split application, or in a sequence of applications in the spring, summer or fall. See the label for complete information and programs for your region.
It is important for Dithiopyr 40 WSB to be activated by water from rainfall or irrigation after application.