You’re familiar with the “Circle of Life”? Hakuna Matata? The idea is that weeds grow up in your flower beds, and you spray them with herbicides. The ones you spray wither up, and are replaced by a new generation of weeds, which calls for another dose of herbicides.
Then, just when almost all the weed seeds have germinated and popped up, off in a distant forrest a crew bales and ties and loads a trailer with freshly fallen pinestraw. Which bales contain a host of stowaways: Freshly propagated weed seeds, mold spores, fungus, mites, and mildew… Which you then pay to buy and spread among your flowers.
STUPID Circle of Life! Past time for those Trojans to realize that wooden horse was probably not such a bargain.
Okay, sorry about the mixed metaphor there. The point is that the way to cut way down on weeds and herbicides is to stop adding the seeds that make the weeds that require the herbicides!
Take up the old, decomposed straw. Treat the soil with Preen or a similar pre-emerge treatment, then install Textraw. Your flower beds (and your back) will thank you.