What is the difference between Preen Mulch Plus Weed Barrier & Preen Extended Control Weed Preventer? How do they work differently?
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Preen Mulch (excluding New York) contains natural premium hardwood mulch, 0.0032% Trifluralin and 0.0008% Isoxaben; In New York this product contains natural premium hardwood mulch and 0.0032% Trifluralin. And Preen Extended Control Weed Preventer contains 1.500% Trifluralin and 0.375% Isoxaben (this product is not available in New York). These products help to prevent their respective label listed weed seeds from germinating. Thank you!
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