Prodiamine vs Dithiopyr: Which Pre-Emergent is Right for Your Lawn
Product specs below are estimates for planning purposes. Always verify against the current product label and your supplier's current listing before buying.
Prodiamine 65 WDG
Quali-Pro
Dithiopyr (Dimension 0.25% G)
Corteva
| Active ingredient | Prodiamine 65% | Dithiopyr 0.25% |
|---|---|---|
| Coverage rate | Sold in 5 lb bottles; about 5 oz of product covers ~6,300 sq ft at standard rate | One 30 lb bag covers ~10,000 sq ft |
| Best for | Cool and warm season lawns, long residual control (4-6 months) | Lawns where early post-emergent crabgrass control is needed |
| Application method | Water-dispersible granule, mix with water, apply with sprayer | Granular, apply with broadcast spreader |
| Applicable zones | cool, warm, transition | cool, warm, transition |
| Where to find | DoMyOwn.com, Solutions Pest and Lawn, SiteOne | DoMyOwn.com, SiteOne, Amazon |
| Buy online | Buy on Amazon | |
| Grass Type Compatibility | ✓ Safe for all grass types | ✓ Safe for all grass types |
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Which Should You Choose?
Choose Prodiamine when you want maximum residual activity and are applying before any crabgrass has germinated. Choose Dithiopyr when you may have missed the ideal window and want a product that also controls young crabgrass seedlings that have already sprouted. For most homeowners applying on time in early spring, Prodiamine at a lower cost per 1,000 sq ft is the better value.
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