preen in beds

[bigvictu]

How many of you guys throw down preen in your beds? I usually don't but now I have a few customers that we don't plant annuals at and are there less frquently for maintenance. i was looking at a big bucket today and it says to put on top of the mulch and than water in. In the past I've always put it under the mulch. It also says its ok with annuals, anybody have opinions? Thanks.

[NCSULandscaper]

we use snapshot instead of preen, cheaper and works better...........i place on top of mulch because mulch can germinate weed seeds as well as dirt

[paponte]

You should be using Treflan, which is the commercial version of Preen. Both contain trifluralin, but Treflan has about 10% AI whereas Preen has only 1.47% AI. It should be incorporated into the mulch typically at a rate of 5-10lbs per acre. Also check with your state and county, if your applying commercially you will most likely be required to posses a a pesticide license and be working under a registered pesticide business.

[4seasons]

Snapshot...............i don't know whether its cheaper or not , but it definitely works better than preen

[danf]

Make sure you read the label- there's a fair number of common plants that those can not be put around. XL is more forgiving, however it's not quite as effective as Snapshot. It's a good idea to swap out to a different pre-e every couple of years to avoid resistance too.

Again, if you read the label, it will likely say that it will need to be incorporated via either irrigation (or rain), or through cultivation. I usually put the pre-e down before mulching and it works fine. No footprints in the mulch that way. ;)

[GDK]

I use Preen in my own garden with great success, but use Treflan at work. The one thing I will say is do not get it on the surface of leaves because it does stain. I have been noticing a lot of yellow sidewalks lately because of many carelessly applying this product. As many have stated, this is a pesticide and does require a license to apply.

[Dreams To Designs]

Preen is decent in controlling annual weeds in beds, but Snapshot does a much better job at controlling annual and perennial weeds. Half the rate before mulch and the other half after mulching seems to work the best. I have seen both Preen & Snapshot have a negative effect on seasonal plantings.

Kirk

[danf]

I have seen both Preen & Snapshot have a negative effect on seasonal plantings.
Not sure if you are meaning you've applied it there, but if you have, you might want to read the labels a little more closely. ;)