re: My pre-emergent doesn't work

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on this topic - I've always been a little nervous to drop a few hundred $ on flowering annuals for my flower beds and plant into a preen treated flowerbed in the spring. I know it's pre-emergent so shouldn't harm the plants, but still makes me nervous that I nuke thenew plants and start from scratch. Is this valid or am I trippin?

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To be honest, I’ve wondered the same thing, particularly for “young” transplants. I don’t think it will damage them per se, but I could see it “slowing them down” temporarily. I base this solely on label restriction as to not use pre-emergent herbicides on new sodded lawns until they have rooted in and are established. But I don’t recall seeing that type of statement on a pre-emergent label as it relates to transplanting annual flowers in a landscape bed.

I need to touch base with horticultural specialists/faculty with the LSU AgCenter and ask that question.

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Preen Extended Control definitely helps with the chamberbitter as a pre-emergent

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Thank you! Will definitely try that.