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Jeffrey from Kennewick, Wa writes

Pendemethalin is also the active ingredient in Scotts Halts Crabgrass Preventer. Does Halts last longer?

Pin Dee says 5-8 weeks. Halts claims 3 months.


A professional grade pre-emergent such as Pin Dee 3.3 EC can have soil residues of up to 6-8 months, depending on the rate used (based on treatment area and program following, and factors such as how sandy the soil is how much rainfall you receive.

Answer last updated on: 03/31/2021

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