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Phil from Mesa, Az writes

Can I mix Princep Liquid Herbicide with Ranger Pro herbicide for gravel or driveway purposes?

Answer:

Princep Liquid Herbicide and Ranger Pro have different modes of action. Pre-emergents should be applied prior to weed germination and post-emergent herbicides should be applied when weeds are young and actively growing. If you plan on mixing other chemicals with Princep, then you will need to do a compatibility test and then calibrate your mixture according to the section "Mixing Procedures" on page 8 of the product label

Answer last updated on: 02/24/2021

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