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Mike from Bowie, Md writes

Is it safe to mix a dandelion killer with Prodiamine 65 WDG?

If so, what is recommended?

Answer:

You could mix a post-emergent herbicide or different pre-emergent herbicide with Prodiamine 65 WDG as long as the use sites are compatible, you are not using the same active ingredient in multiple products, and you calibrate the products to be used together. Any time you are mixing products together for the first time, it is recommend to perform a small test mixture first to ensure compatability. Keep in mind that post-emergent control (killing existing weeds) will be most effective when the weeds (in this case, dandelion) are young and actively growing. Another option would be to use a different pre-emergent, such as Dimension 2EW, which also lists Dandelion on the label. We would need to know more information about your situation in order to recommend a post-emergent product for dandelion, such as where you want to use it (turf, ornamentals, etc.) and how much area you have to cover.

Answer last updated on: 02/15/2016

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