Pesticide
Product Reference
Reference data for fungicides, herbicides, insecticides, and nematicides used in published TPMR efficacy trials. Always read the current product label before use.
Product Type
Herbicide
Weed management
Reference Data Only — Always Read the Current Product Label Before Use
Information on this page is provided for general reference purposes and may not reflect the most current label, registration status, approved use sites, application rates, or restrictions for your state or region. Pesticide registrations, use patterns, and label language are subject to change without notice. It is the applicator's legal responsibility to read and follow the current product label in its entirety prior to each use. TPMR assumes no liability for errors, omissions, or decisions made based on this reference data.
Dimension 2EW
Dithiopyr 22.0% · Emulsifiable Concentrate (EC)
Manufactured by Corteva Agriscience · EPA Reg. No. 62719-542
Dithiopyr
Pyridine (Dithiocarbamate)
24 hours
CAUTION
Mode of Action
Microtubule Assembly Inhibitor
Dithiopyr inhibits mitotic spindle formation by binding to tubulin subunits, preventing assembly of the spindle apparatus. Unlike most pre-emergents, dithiopyr retains early post-emergent activity on crabgrass at the 1- to 2-tiller stage, making it more flexible for application timing.
Labeled Weed Targets
Application
Rate Range
0.5 – 1.0
fl oz / 1,000 sq ft
Interval
Split application: spring + early summer
days between applications
Resistance Management
Low resistance risk. No confirmed dinitroaniline or dithiopyr-resistant weed populations documented in managed turfgrass. Continue to rotate with post-emergent programs for comprehensive resistance management.
TPMR Reports Using This Product
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