Quote:
Originally Posted by Jima64
I read that preen is used in the soil and acts as a pre emergent to stop the seeds from growing. You water it in and it forms a barrier. The fall is a good time for this to stop the spring growth of new weeds. I use a regular roundup weed spray in my beds and where I have a fence line.
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Hubby also sprays roundup on our bed borders but you do have to be careful because the spray travels as you spray it and you may get a little more border than you asked for. Probably best not to do it on a windy day and keep the sprayer set for not a wide spray if doing borders.